mbed library sources(for async_print)
Fork of mbed-src by
Revision 554:edd95c0879f8, committed 2015-06-01
- Comitter:
- mbed_official
- Date:
- Mon Jun 01 11:00:11 2015 +0100
- Parent:
- 553:063b9f2f393c
- Child:
- 555:f8b0f61305ee
- Commit message:
- Synchronized with git revision 7a1d25e3dfbe5bc1457774d4af3c73383a0ff81d
Full URL: https://github.com/mbedmicro/mbed/commit/7a1d25e3dfbe5bc1457774d4af3c73383a0ff81d/
Silicon Labs - Initial test framework pin definitions for EFM32 platforms
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_NXP/TARGET_LPC2460/LPC24xx.h Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,972 @@ +/* mbed Microcontroller Library - LPC24xx CMSIS-like structs + * Copyright (C) 2009-2015 ARM Limited. All rights reserved. + * + * An LPC24xx header file, based on LPC23xx.h + */ + +#ifndef __LPC24xx_H +#define __LPC24xx_H + +#ifdef __cplusplus + extern "C" { +#endif + +/* + * ========================================================================== + * ---------- Interrupt Number Definition ----------------------------------- + * ========================================================================== + */ + +typedef enum IRQn +{ +/****** LPC23xx Specific Interrupt Numbers *******************************************************/ + WDT_IRQn = 0, /*!< Watchdog Timer Interrupt */ + + TIMER0_IRQn = 4, /*!< Timer0 Interrupt */ + TIMER1_IRQn = 5, /*!< Timer1 Interrupt */ + UART0_IRQn = 6, /*!< UART0 Interrupt */ + UART1_IRQn = 7, /*!< UART1 Interrupt */ + PWM0_IRQn = 8, /*!< PWM0 Interrupt */ + PWM1_IRQn = 8, /*!< PWM1 Interrupt */ + I2C0_IRQn = 9, /*!< I2C0 Interrupt */ + SPI_IRQn = 10, /*!< SPI Interrupt */ + SSP0_IRQn = 10, /*!< SSP0 Interrupt */ + SSP1_IRQn = 11, /*!< SSP1 Interrupt */ + PLL0_IRQn = 12, /*!< PLL0 Lock (Main PLL) Interrupt */ + RTC_IRQn = 13, /*!< Real Time Clock Interrupt */ + EINT0_IRQn = 14, /*!< External Interrupt 0 Interrupt */ + EINT1_IRQn = 15, /*!< External Interrupt 1 Interrupt */ + EINT2_IRQn = 16, /*!< External Interrupt 2 Interrupt */ + EINT3_IRQn = 17, /*!< External Interrupt 3 Interrupt */ + ADC_IRQn = 18, /*!< A/D Converter Interrupt */ + I2C1_IRQn = 19, /*!< I2C1 Interrupt */ + BOD_IRQn = 20, /*!< Brown-Out Detect Interrupt */ + ENET_IRQn = 21, /*!< Ethernet Interrupt */ + USB_IRQn = 22, /*!< USB Interrupt */ + CAN_IRQn = 23, /*!< CAN Interrupt */ + SDMMC_IRQn = 24, /*!< SD/MMC Interrupt */ + DMA_IRQn = 25, /*!< General Purpose DMA Interrupt */ + TIMER2_IRQn = 26, /*!< Timer2 Interrupt */ + TIMER3_IRQn = 27, /*!< Timer3 Interrupt */ + UART2_IRQn = 28, /*!< UART2 Interrupt */ + UART3_IRQn = 29, /*!< UART3 Interrupt */ + I2C2_IRQn = 30, /*!< I2C2 Interrupt */ + I2S_IRQn = 31, /*!< I2S Interrupt */ +} IRQn_Type; + +/* + * ========================================================================== + * ----------- Processor and Core Peripheral Section ------------------------ + * ========================================================================== + */ + +/* Configuration of the ARM7 Processor and Core Peripherals */ +#define __MPU_PRESENT 0 /*!< MPU present or not */ +#define __NVIC_PRIO_BITS 4 /*!< Number of Bits used for Priority Levels */ +#define __Vendor_SysTickConfig 0 /*!< Set to 1 if different SysTick Config is used */ + + +#include <core_arm7.h> +#include "system_LPC24xx.h" /* System Header */ + + +/******************************************************************************/ +/* Device Specific Peripheral registers structures */ +/******************************************************************************/ +#if defined ( __CC_ARM ) + #pragma anon_unions +#endif + +/*------------- Vector Interupt Controler (VIC) ------------------------------*/ +typedef struct +{ + __I uint32_t IRQStatus; + __I uint32_t FIQStatus; + __I uint32_t RawIntr; + __IO uint32_t IntSelect; + __IO uint32_t IntEnable; + __O uint32_t IntEnClr; + __IO uint32_t SoftInt; + __O uint32_t SoftIntClr; + __IO uint32_t Protection; + __IO uint32_t SWPriorityMask; + __IO uint32_t RESERVED0[54]; + __IO uint32_t VectAddr[32]; + __IO uint32_t RESERVED1[32]; + __IO uint32_t VectPriority[32]; + __IO uint32_t RESERVED2[800]; + __IO uint32_t Address; +} LPC_VIC_TypeDef; + +/*------------- System Control (SC) ------------------------------------------*/ +typedef struct +{ + __IO uint32_t MAMCR; + __IO uint32_t MAMTIM; + uint32_t RESERVED0[14]; + __IO uint32_t MEMMAP; + uint32_t RESERVED1[15]; + __IO uint32_t PLL0CON; /* Clocking and Power Control */ + __IO uint32_t PLL0CFG; + __I uint32_t PLL0STAT; + __O uint32_t PLL0FEED; + uint32_t RESERVED2[12]; + __IO uint32_t PCON; + __IO uint32_t PCONP; + uint32_t RESERVED3[15]; + __IO uint32_t CCLKCFG; + __IO uint32_t USBCLKCFG; + __IO uint32_t CLKSRCSEL; + uint32_t RESERVED4[12]; + __IO uint32_t EXTINT; /* External Interrupts */ + __IO uint32_t INTWAKE; + __IO uint32_t EXTMODE; + __IO uint32_t EXTPOLAR; + uint32_t RESERVED6[12]; + __IO uint32_t RSID; /* Reset */ + __IO uint32_t CSPR; + __IO uint32_t AHBCFG1; + __IO uint32_t AHBCFG2; + uint32_t RESERVED7[4]; + __IO uint32_t SCS; /* Syscon Miscellaneous Registers */ + __IO uint32_t IRCTRIM; /* Clock Dividers */ + __IO uint32_t PCLKSEL0; + __IO uint32_t PCLKSEL1; + uint32_t RESERVED8[4]; + __IO uint32_t USBIntSt; /* USB Device/OTG Interrupt Register */ + uint32_t RESERVED9; +// __IO uint32_t CLKOUTCFG; /* Clock Output Configuration */ + } LPC_SC_TypeDef; + +/*------------- Pin Connect Block (PINCON) -----------------------------------*/ +typedef struct +{ + __IO uint32_t PINSEL0; + __IO uint32_t PINSEL1; + __IO uint32_t PINSEL2; + __IO uint32_t PINSEL3; + __IO uint32_t PINSEL4; + __IO uint32_t PINSEL5; + __IO uint32_t PINSEL6; + __IO uint32_t PINSEL7; + __IO uint32_t PINSEL8; + __IO uint32_t PINSEL9; + __IO uint32_t PINSEL10; + uint32_t RESERVED0[5]; + __IO uint32_t PINMODE0; + __IO uint32_t PINMODE1; + __IO uint32_t PINMODE2; + __IO uint32_t PINMODE3; + __IO uint32_t PINMODE4; + __IO uint32_t PINMODE5; + __IO uint32_t PINMODE6; + __IO uint32_t PINMODE7; + __IO uint32_t PINMODE8; + __IO uint32_t PINMODE9; + __IO uint32_t PINMODE_OD0; + __IO uint32_t PINMODE_OD1; + __IO uint32_t PINMODE_OD2; + __IO uint32_t PINMODE_OD3; + __IO uint32_t PINMODE_OD4; +} LPC_PINCON_TypeDef; + +#define PCTIM0 1 +#define PCTIM1 2 +#define PCUART0 3 +#define PCUART1 4 +#define PCPWM1 6 +#define PCI2C0 7 +#define PCSPI 8 +#define PCRTC 9 +#define PCSSP1 10 +#define PCEMC 11 +#define PCADC 12 +#define PCAN1 13 +#define PCAN2 14 +#define PCI2C1 19 +#define PCSSP0 21 +#define PCTIM2 22 +#define PCTIM3 23 +#define PCUART2 24 +#define PCUART3 25 +#define PCI2C2 26 +#define PCI2S 27 +#define PCSDC 28 +#define PCGPDMA 29 +#define PCENET 30 +#define PCUSB 31 + +/*------------- General Purpose Input/Output (GPIO) --------------------------*/ +typedef struct +{ + __IO uint32_t FIODIR; + uint32_t RESERVED0[3]; + __IO uint32_t FIOMASK; + __IO uint32_t FIOPIN; + __IO uint32_t FIOSET; + __O uint32_t FIOCLR; +} LPC_GPIO_TypeDef; + +typedef struct +{ + __I uint32_t IntStatus; + __I uint32_t IO0IntStatR; + __I uint32_t IO0IntStatF; + __O uint32_t IO0IntClr; + __IO uint32_t IO0IntEnR; + __IO uint32_t IO0IntEnF; + uint32_t RESERVED0[3]; + __I uint32_t IO2IntStatR; + __I uint32_t IO2IntStatF; + __O uint32_t IO2IntClr; + __IO uint32_t IO2IntEnR; + __IO uint32_t IO2IntEnF; +} LPC_GPIOINT_TypeDef; + +/*------------- Timer (TIM) --------------------------------------------------*/ +typedef struct +{ + __IO uint32_t IR; + __IO uint32_t TCR; + __IO uint32_t TC; + __IO uint32_t PR; + __IO uint32_t PC; + __IO uint32_t MCR; + __IO uint32_t MR0; + __IO uint32_t MR1; + __IO uint32_t MR2; + __IO uint32_t MR3; + __IO uint32_t CCR; + __I uint32_t CR0; + __I uint32_t CR1; + uint32_t RESERVED0[2]; + __IO uint32_t EMR; + uint32_t RESERVED1[12]; + __IO uint32_t CTCR; +} LPC_TIM_TypeDef; + +/*------------- Pulse-Width Modulation (PWM) ---------------------------------*/ +typedef struct +{ + __IO uint32_t IR; + __IO uint32_t TCR; + __IO uint32_t TC; + __IO uint32_t PR; + __IO uint32_t PC; + __IO uint32_t MCR; + __IO uint32_t MR0; + __IO uint32_t MR1; + __IO uint32_t MR2; + __IO uint32_t MR3; + __IO uint32_t CCR; + __I uint32_t CR0; + __I uint32_t CR1; + __I uint32_t CR2; + __I uint32_t CR3; + uint32_t RESERVED0; + __IO uint32_t MR4; + __IO uint32_t MR5; + __IO uint32_t MR6; + __IO uint32_t PCR; + __IO uint32_t LER; + uint32_t RESERVED1[7]; + __IO uint32_t CTCR; +} LPC_PWM_TypeDef; + +/*------------- Universal Asynchronous Receiver Transmitter (UART) -----------*/ +typedef struct +{ + union { + __I uint8_t RBR; + __O uint8_t THR; + __IO uint8_t DLL; + uint32_t RESERVED0; + }; + union { + __IO uint8_t DLM; + __IO uint32_t IER; + }; + union { + __I uint32_t IIR; + __O uint8_t FCR; + }; + __IO uint8_t LCR; + uint8_t RESERVED1[7]; + __IO uint8_t LSR; + uint8_t RESERVED2[7]; + __IO uint8_t SCR; + uint8_t RESERVED3[3]; + __IO uint32_t ACR; + __IO uint8_t ICR; + uint8_t RESERVED4[3]; + __IO uint8_t FDR; + uint8_t RESERVED5[7]; + __IO uint8_t TER; + uint8_t RESERVED6[27]; + __IO uint8_t RS485CTRL; + uint8_t RESERVED7[3]; + __IO uint8_t ADRMATCH; +} LPC_UART_TypeDef; + +typedef struct +{ + union { + __I uint8_t RBR; + __O uint8_t THR; + __IO uint8_t DLL; + uint32_t RESERVED0; + }; + union { + __IO uint8_t DLM; + __IO uint32_t IER; + }; + union { + __I uint32_t IIR; + __O uint8_t FCR; + }; + __IO uint8_t LCR; + uint8_t RESERVED1[3]; + __IO uint8_t MCR; + uint8_t RESERVED2[3]; + __IO uint8_t LSR; + uint8_t RESERVED3[3]; + __IO uint8_t MSR; + uint8_t RESERVED4[3]; + __IO uint8_t SCR; + uint8_t RESERVED5[3]; + __IO uint32_t ACR; + uint32_t RESERVED6; + __IO uint32_t FDR; + uint32_t RESERVED7; + __IO uint8_t TER; + uint8_t RESERVED8[27]; + __IO uint8_t RS485CTRL; + uint8_t RESERVED9[3]; + __IO uint8_t ADRMATCH; + uint8_t RESERVED10[3]; + __IO uint8_t RS485DLY; +} LPC_UART1_TypeDef; + +/*------------- Serial Peripheral Interface (SPI) ----------------------------*/ +typedef struct +{ + __IO uint32_t SPCR; + __I uint32_t SPSR; + __IO uint32_t SPDR; + __IO uint32_t SPCCR; + uint32_t RESERVED0[3]; + __IO uint32_t SPINT; +} LPC_SPI_TypeDef; + +/*------------- Synchronous Serial Communication (SSP) -----------------------*/ +typedef struct +{ + __IO uint32_t CR0; + __IO uint32_t CR1; + __IO uint32_t DR; + __I uint32_t SR; + __IO uint32_t CPSR; + __IO uint32_t IMSC; + __IO uint32_t RIS; + __IO uint32_t MIS; + __IO uint32_t ICR; + __IO uint32_t DMACR; +} LPC_SSP_TypeDef; + +/*------------- Inter-Integrated Circuit (I2C) -------------------------------*/ +typedef struct +{ + __IO uint32_t I2CONSET; + __I uint32_t I2STAT; + __IO uint32_t I2DAT; + __IO uint32_t I2ADR0; + __IO uint32_t I2SCLH; + __IO uint32_t I2SCLL; + __O uint32_t I2CONCLR; + __IO uint32_t MMCTRL; + __IO uint32_t I2ADR1; + __IO uint32_t I2ADR2; + __IO uint32_t I2ADR3; + __I uint32_t I2DATA_BUFFER; + __IO uint32_t I2MASK0; + __IO uint32_t I2MASK1; + __IO uint32_t I2MASK2; + __IO uint32_t I2MASK3; +} LPC_I2C_TypeDef; + +/*------------- Inter IC Sound (I2S) -----------------------------------------*/ +typedef struct +{ + __IO uint32_t I2SDAO; + __I uint32_t I2SDAI; + __O uint32_t I2STXFIFO; + __I uint32_t I2SRXFIFO; + __I uint32_t I2SSTATE; + __IO uint32_t I2SDMA1; + __IO uint32_t I2SDMA2; + __IO uint32_t I2SIRQ; + __IO uint32_t I2STXRATE; + __IO uint32_t I2SRXRATE; + __IO uint32_t I2STXBITRATE; + __IO uint32_t I2SRXBITRATE; + __IO uint32_t I2STXMODE; + __IO uint32_t I2SRXMODE; +} LPC_I2S_TypeDef; + +/*------------- Real-Time Clock (RTC) ----------------------------------------*/ +typedef struct +{ + __IO uint8_t ILR; + uint8_t RESERVED0[3]; + __IO uint8_t CTC; + uint8_t RESERVED1[3]; + __IO uint8_t CCR; + uint8_t RESERVED2[3]; + __IO uint8_t CIIR; + uint8_t RESERVED3[3]; + __IO uint8_t AMR; + uint8_t RESERVED4[3]; + __I uint32_t CTIME0; + __I uint32_t CTIME1; + __I uint32_t CTIME2; + __IO uint8_t SEC; + uint8_t RESERVED5[3]; + __IO uint8_t MIN; + uint8_t RESERVED6[3]; + __IO uint8_t HOUR; + uint8_t RESERVED7[3]; + __IO uint8_t DOM; + uint8_t RESERVED8[3]; + __IO uint8_t DOW; + uint8_t RESERVED9[3]; + __IO uint16_t DOY; + uint16_t RESERVED10; + __IO uint8_t MONTH; + uint8_t RESERVED11[3]; + __IO uint16_t YEAR; + uint16_t RESERVED12; + __IO uint32_t CALIBRATION; + __IO uint32_t GPREG0; + __IO uint32_t GPREG1; + __IO uint32_t GPREG2; + __IO uint32_t GPREG3; + __IO uint32_t GPREG4; + __IO uint8_t WAKEUPDIS; + uint8_t RESERVED13[3]; + __IO uint8_t PWRCTRL; + uint8_t RESERVED14[3]; + __IO uint8_t ALSEC; + uint8_t RESERVED15[3]; + __IO uint8_t ALMIN; + uint8_t RESERVED16[3]; + __IO uint8_t ALHOUR; + uint8_t RESERVED17[3]; + __IO uint8_t ALDOM; + uint8_t RESERVED18[3]; + __IO uint8_t ALDOW; + uint8_t RESERVED19[3]; + __IO uint16_t ALDOY; + uint16_t RESERVED20; + __IO uint8_t ALMON; + uint8_t RESERVED21[3]; + __IO uint16_t ALYEAR; + uint16_t RESERVED22; +} LPC_RTC_TypeDef; + +/*------------- Watchdog Timer (WDT) -----------------------------------------*/ +typedef struct +{ + __IO uint8_t WDMOD; + uint8_t RESERVED0[3]; + __IO uint32_t WDTC; + __O uint8_t WDFEED; + uint8_t RESERVED1[3]; + __I uint32_t WDTV; + __IO uint32_t WDCLKSEL; +} LPC_WDT_TypeDef; + +/*------------- Analog-to-Digital Converter (ADC) ----------------------------*/ +typedef struct +{ + __IO uint32_t ADCR; + __IO uint32_t ADGDR; + uint32_t RESERVED0; + __IO uint32_t ADINTEN; + __I uint32_t ADDR0; + __I uint32_t ADDR1; + __I uint32_t ADDR2; + __I uint32_t ADDR3; + __I uint32_t ADDR4; + __I uint32_t ADDR5; + __I uint32_t ADDR6; + __I uint32_t ADDR7; + __I uint32_t ADSTAT; + __IO uint32_t ADTRM; +} LPC_ADC_TypeDef; + +/*------------- Digital-to-Analog Converter (DAC) ----------------------------*/ +typedef struct +{ + __IO uint32_t DACR; + __IO uint32_t DACCTRL; + __IO uint16_t DACCNTVAL; +} LPC_DAC_TypeDef; + +/*------------- Multimedia Card Interface (MCI) ------------------------------*/ +typedef struct +{ + __IO uint32_t MCIPower; /* Power control */ + __IO uint32_t MCIClock; /* Clock control */ + __IO uint32_t MCIArgument; + __IO uint32_t MMCCommand; + __I uint32_t MCIRespCmd; + __I uint32_t MCIResponse0; + __I uint32_t MCIResponse1; + __I uint32_t MCIResponse2; + __I uint32_t MCIResponse3; + __IO uint32_t MCIDataTimer; + __IO uint32_t MCIDataLength; + __IO uint32_t MCIDataCtrl; + __I uint32_t MCIDataCnt; + __I uint32_t MCIStatus; + __O uint32_t MCIClear; + __IO uint32_t MCIMask0; + uint32_t RESERVED1[2]; + __I uint32_t MCIFifoCnt; + uint32_t RESERVED2[13]; + __IO uint32_t MCIFIFO[16]; +} LPC_MCI_TypeDef; + +/*------------- Controller Area Network (CAN) --------------------------------*/ +typedef struct +{ + __IO uint32_t mask[512]; /* ID Masks */ +} LPC_CANAF_RAM_TypeDef; + +typedef struct /* Acceptance Filter Registers */ +{ + __IO uint32_t AFMR; + __IO uint32_t SFF_sa; + __IO uint32_t SFF_GRP_sa; + __IO uint32_t EFF_sa; + __IO uint32_t EFF_GRP_sa; + __IO uint32_t ENDofTable; + __I uint32_t LUTerrAd; + __I uint32_t LUTerr; + __IO uint32_t FCANIE; + __IO uint32_t FCANIC0; + __IO uint32_t FCANIC1; +} LPC_CANAF_TypeDef; + +typedef struct /* Central Registers */ +{ + __I uint32_t CANTxSR; + __I uint32_t CANRxSR; + __I uint32_t CANMSR; +} LPC_CANCR_TypeDef; + +typedef struct /* Controller Registers */ +{ + __IO uint32_t MOD; + __O uint32_t CMR; + __IO uint32_t GSR; + __I uint32_t ICR; + __IO uint32_t IER; + __IO uint32_t BTR; + __IO uint32_t EWL; + __I uint32_t SR; + __IO uint32_t RFS; + __IO uint32_t RID; + __IO uint32_t RDA; + __IO uint32_t RDB; + __IO uint32_t TFI1; + __IO uint32_t TID1; + __IO uint32_t TDA1; + __IO uint32_t TDB1; + __IO uint32_t TFI2; + __IO uint32_t TID2; + __IO uint32_t TDA2; + __IO uint32_t TDB2; + __IO uint32_t TFI3; + __IO uint32_t TID3; + __IO uint32_t TDA3; + __IO uint32_t TDB3; +} LPC_CAN_TypeDef; + +/*------------- General Purpose Direct Memory Access (GPDMA) -----------------*/ +typedef struct /* Common Registers */ +{ + __I uint32_t DMACIntStat; + __I uint32_t DMACIntTCStat; + __O uint32_t DMACIntTCClear; + __I uint32_t DMACIntErrStat; + __O uint32_t DMACIntErrClr; + __I uint32_t DMACRawIntTCStat; + __I uint32_t DMACRawIntErrStat; + __I uint32_t DMACEnbldChns; + __IO uint32_t DMACSoftBReq; + __IO uint32_t DMACSoftSReq; + __IO uint32_t DMACSoftLBReq; + __IO uint32_t DMACSoftLSReq; + __IO uint32_t DMACConfig; + __IO uint32_t DMACSync; +} LPC_GPDMA_TypeDef; + +typedef struct /* Channel Registers */ +{ + __IO uint32_t DMACCSrcAddr; + __IO uint32_t DMACCDestAddr; + __IO uint32_t DMACCLLI; + __IO uint32_t DMACCControl; + __IO uint32_t DMACCConfig; +} LPC_GPDMACH_TypeDef; + +/*------------- Universal Serial Bus (USB) -----------------------------------*/ +typedef struct +{ + __I uint32_t HcRevision; /* USB Host Registers */ + __IO uint32_t HcControl; + __IO uint32_t HcCommandStatus; + __IO uint32_t HcInterruptStatus; + __IO uint32_t HcInterruptEnable; + __IO uint32_t HcInterruptDisable; + __IO uint32_t HcHCCA; + __I uint32_t HcPeriodCurrentED; + __IO uint32_t HcControlHeadED; + __IO uint32_t HcControlCurrentED; + __IO uint32_t HcBulkHeadED; + __IO uint32_t HcBulkCurrentED; + __I uint32_t HcDoneHead; + __IO uint32_t HcFmInterval; + __I uint32_t HcFmRemaining; + __I uint32_t HcFmNumber; + __IO uint32_t HcPeriodicStart; + __IO uint32_t HcLSTreshold; + __IO uint32_t HcRhDescriptorA; + __IO uint32_t HcRhDescriptorB; + __IO uint32_t HcRhStatus; + __IO uint32_t HcRhPortStatus1; + __IO uint32_t HcRhPortStatus2; + uint32_t RESERVED0[40]; + __I uint32_t Module_ID; + + __I uint32_t OTGIntSt; /* USB On-The-Go Registers */ + __IO uint32_t OTGIntEn; + __O uint32_t OTGIntSet; + __O uint32_t OTGIntClr; + __IO uint32_t OTGStCtrl; + __IO uint32_t OTGTmr; + uint32_t RESERVED1[58]; + + __I uint32_t USBDevIntSt; /* USB Device Interrupt Registers */ + __IO uint32_t USBDevIntEn; + __O uint32_t USBDevIntClr; + __O uint32_t USBDevIntSet; + + __O uint32_t USBCmdCode; /* USB Device SIE Command Registers */ + __I uint32_t USBCmdData; + + __I uint32_t USBRxData; /* USB Device Transfer Registers */ + __O uint32_t USBTxData; + __I uint32_t USBRxPLen; + __O uint32_t USBTxPLen; + __IO uint32_t USBCtrl; + __O uint32_t USBDevIntPri; + + __I uint32_t USBEpIntSt; /* USB Device Endpoint Interrupt Regs */ + __IO uint32_t USBEpIntEn; + __O uint32_t USBEpIntClr; + __O uint32_t USBEpIntSet; + __O uint32_t USBEpIntPri; + + __IO uint32_t USBReEp; /* USB Device Endpoint Realization Reg*/ + __O uint32_t USBEpInd; + __IO uint32_t USBMaxPSize; + + __I uint32_t USBDMARSt; /* USB Device DMA Registers */ + __O uint32_t USBDMARClr; + __O uint32_t USBDMARSet; + uint32_t RESERVED2[9]; + __IO uint32_t USBUDCAH; + __I uint32_t USBEpDMASt; + __O uint32_t USBEpDMAEn; + __O uint32_t USBEpDMADis; + __I uint32_t USBDMAIntSt; + __IO uint32_t USBDMAIntEn; + uint32_t RESERVED3[2]; + __I uint32_t USBEoTIntSt; + __O uint32_t USBEoTIntClr; + __O uint32_t USBEoTIntSet; + __I uint32_t USBNDDRIntSt; + __O uint32_t USBNDDRIntClr; + __O uint32_t USBNDDRIntSet; + __I uint32_t USBSysErrIntSt; + __O uint32_t USBSysErrIntClr; + __O uint32_t USBSysErrIntSet; + uint32_t RESERVED4[15]; + + __I uint32_t I2C_RX; /* USB OTG I2C Registers */ + __O uint32_t I2C_WO; + __I uint32_t I2C_STS; + __IO uint32_t I2C_CTL; + __IO uint32_t I2C_CLKHI; + __O uint32_t I2C_CLKLO; + uint32_t RESERVED5[823]; + + union { + __IO uint32_t USBClkCtrl; /* USB Clock Control Registers */ + __IO uint32_t OTGClkCtrl; + }; + union { + __I uint32_t USBClkSt; + __I uint32_t OTGClkSt; + }; +} LPC_USB_TypeDef; + +/*------------- Ethernet Media Access Controller (EMAC) ----------------------*/ +typedef struct +{ + __IO uint32_t MAC1; /* MAC Registers */ + __IO uint32_t MAC2; + __IO uint32_t IPGT; + __IO uint32_t IPGR; + __IO uint32_t CLRT; + __IO uint32_t MAXF; + __IO uint32_t SUPP; + __IO uint32_t TEST; + __IO uint32_t MCFG; + __IO uint32_t MCMD; + __IO uint32_t MADR; + __O uint32_t MWTD; + __I uint32_t MRDD; + __I uint32_t MIND; + uint32_t RESERVED0[2]; + __IO uint32_t SA0; + __IO uint32_t SA1; + __IO uint32_t SA2; + uint32_t RESERVED1[45]; + __IO uint32_t Command; /* Control Registers */ + __I uint32_t Status; + __IO uint32_t RxDescriptor; + __IO uint32_t RxStatus; + __IO uint32_t RxDescriptorNumber; + __I uint32_t RxProduceIndex; + __IO uint32_t RxConsumeIndex; + __IO uint32_t TxDescriptor; + __IO uint32_t TxStatus; + __IO uint32_t TxDescriptorNumber; + __IO uint32_t TxProduceIndex; + __I uint32_t TxConsumeIndex; + uint32_t RESERVED2[10]; + __I uint32_t TSV0; + __I uint32_t TSV1; + __I uint32_t RSV; + uint32_t RESERVED3[3]; + __IO uint32_t FlowControlCounter; + __I uint32_t FlowControlStatus; + uint32_t RESERVED4[34]; + __IO uint32_t RxFilterCtrl; /* Rx Filter Registers */ + __IO uint32_t RxFilterWoLStatus; + __IO uint32_t RxFilterWoLClear; + uint32_t RESERVED5; + __IO uint32_t HashFilterL; + __IO uint32_t HashFilterH; + uint32_t RESERVED6[882]; + __I uint32_t IntStatus; /* Module Control Registers */ + __IO uint32_t IntEnable; + __O uint32_t IntClear; + __O uint32_t IntSet; + uint32_t RESERVED7; + __IO uint32_t PowerDown; + uint32_t RESERVED8; + __IO uint32_t Module_ID; +} LPC_EMAC_TypeDef; + +/*-------------------- External Memory Controller (EMC) ----------------------*/ +typedef struct +{ + __IO uint32_t EMCControl; + __I uint32_t EMCStatus; + __IO uint32_t EMCConfig; + uint32_t RESERVED1[5]; + __IO uint32_t EMCDynamicControl; + __IO uint32_t EMCDynamicRefresh; + __IO uint32_t EMCDynamicReadConfig; + uint32_t RESERVED2; + __IO uint32_t EMCDynamicRP; + __IO uint32_t EMCDynamicRAS; + __IO uint32_t EMCDynamicSREX; + __IO uint32_t EMCDynamicAPR; + __IO uint32_t EMCDynamicDAL; + __IO uint32_t EMCDynamicWR; + __IO uint32_t EMCDynamicRC; + __IO uint32_t EMCDynamicRFC; + __IO uint32_t EMCDynamicXSR; + __IO uint32_t EMCDynamicRRD; + __IO uint32_t EMCDynamicMRD; + uint32_t RESERVED3[9]; + __IO uint32_t EMCStaticExtendedWait; + uint32_t RESERVED4[31]; + __IO uint32_t EMCDynamicConfig0; + __IO uint32_t EMCDynamicRasCas0; + uint32_t RESERVED5[6]; + __IO uint32_t EMCDynamicConfig1; + __IO uint32_t EMCDynamicRasCas1; + uint32_t RESERVED6[6]; + __IO uint32_t EMCDynamicConfic2; + __IO uint32_t EMCDynamicRasCas2; + uint32_t RESERVED7[6]; + __IO uint32_t EMCDynamicConfig3; + __IO uint32_t EMCDynamicRasCas3; + uint32_t RESERVED8[38]; + __IO uint32_t EMCStaticConfig0; + __IO uint32_t EMCStaticWaitWen0; + __IO uint32_t EMCStaticWaitOen0; + __IO uint32_t EMCStaticWaitRd0; + __IO uint32_t EMCStaticWaitPage0; + __IO uint32_t EMCStaticWaitWr0; + __IO uint32_t EMCStaticWaitTurn0; + uint32_t RESERVED9; + __IO uint32_t EMCStaticConfig1; + __IO uint32_t EMCStaticWaitWen1; + __IO uint32_t EMCStaticWaitOen1; + __IO uint32_t EMCStaticWaitRd1; + __IO uint32_t EMCStaticWaitPage1; + __IO uint32_t EMCStaticWaitWr1; + __IO uint32_t EMCStaticWaitTurn1; + uint32_t RESERVED10; + __IO uint32_t EMCStaticConfig2; + __IO uint32_t EMCStaticWaitWen2; + __IO uint32_t EMCStaticWaitOen2; + __IO uint32_t EMCStaticWaitRd2; + __IO uint32_t EMCStaticWaitPage2; + __IO uint32_t EMCStaticWaitWr2; + __IO uint32_t EMCStaticWaitTurn2; + uint32_t RESERVED11; + __IO uint32_t EMCStaticConfig3; + __IO uint32_t EMCStaticWaitWen3; + __IO uint32_t EMCStaticWaitOen3; + __IO uint32_t EMCStaticWaitRd3; + __IO uint32_t EMCStaticWaitPage3; + __IO uint32_t EMCStaticWaitWr3; + __IO uint32_t EMCStaticWaitTurn3; +} LPC_EMC_TypeDef; +#if defined ( __CC_ARM ) + #pragma no_anon_unions +#endif + +/******************************************************************************/ +/* Peripheral memory map */ +/******************************************************************************/ +/* Base addresses */ + +/* AHB Peripheral # 0 */ + +/* +#define FLASH_BASE (0x00000000UL) +#define RAM_BASE (0x10000000UL) +#define GPIO_BASE (0x2009C000UL) +#define APB0_BASE (0x40000000UL) +#define APB1_BASE (0x40080000UL) +#define AHB_BASE (0x50000000UL) +#define CM3_BASE (0xE0000000UL) +*/ + +// TODO - #define VIC_BASE_ADDR 0xFFFFF000 + +#define LPC_WDT_BASE (0xE0000000) +#define LPC_TIM0_BASE (0xE0004000) +#define LPC_TIM1_BASE (0xE0008000) +#define LPC_UART0_BASE (0xE000C000) +#define LPC_UART1_BASE (0xE0010000) +#define LPC_PWM1_BASE (0xE0018000) +#define LPC_I2C0_BASE (0xE001C000) +#define LPC_SPI_BASE (0xE0020000) +#define LPC_RTC_BASE (0xE0024000) +#define LPC_GPIOINT_BASE (0xE0028080) +#define LPC_PINCON_BASE (0xE002C000) +#define LPC_SSP1_BASE (0xE0030000) +#define LPC_ADC_BASE (0xE0034000) +#define LPC_CANAF_RAM_BASE (0xE0038000) +#define LPC_CANAF_BASE (0xE003C000) +#define LPC_CANCR_BASE (0xE0040000) +#define LPC_CAN1_BASE (0xE0044000) +#define LPC_CAN2_BASE (0xE0048000) +#define LPC_I2C1_BASE (0xE005C000) +#define LPC_SSP0_BASE (0xE0068000) +#define LPC_DAC_BASE (0xE006C000) +#define LPC_TIM2_BASE (0xE0070000) +#define LPC_TIM3_BASE (0xE0074000) +#define LPC_UART2_BASE (0xE0078000) +#define LPC_UART3_BASE (0xE007C000) +#define LPC_I2C2_BASE (0xE0080000) +#define LPC_I2S_BASE (0xE0088000) +#define LPC_MCI_BASE (0xE008C000) +#define LPC_SC_BASE (0xE01FC000) +#define LPC_EMAC_BASE (0xFFE00000) +#define LPC_GPDMA_BASE (0xFFE04000) +#define LPC_GPDMACH0_BASE (0xFFE04100) +#define LPC_GPDMACH1_BASE (0xFFE04120) +#define LPC_EMC_BASE (0xFFE08000) +#define LPC_USB_BASE (0xFFE0C000) +#define LPC_VIC_BASE (0xFFFFF000) + +/* GPIOs */ +#define LPC_GPIO0_BASE (0x3FFFC000) +#define LPC_GPIO1_BASE (0x3FFFC020) +#define LPC_GPIO2_BASE (0x3FFFC040) +#define LPC_GPIO3_BASE (0x3FFFC060) +#define LPC_GPIO4_BASE (0x3FFFC080) + + +/******************************************************************************/ +/* Peripheral declaration */ +/******************************************************************************/ +#define LPC_SC (( LPC_SC_TypeDef *) LPC_SC_BASE) +#define LPC_GPIO0 (( LPC_GPIO_TypeDef *) LPC_GPIO0_BASE) +#define LPC_GPIO1 (( LPC_GPIO_TypeDef *) LPC_GPIO1_BASE) +#define LPC_GPIO2 (( LPC_GPIO_TypeDef *) LPC_GPIO2_BASE) +#define LPC_GPIO3 (( LPC_GPIO_TypeDef *) LPC_GPIO3_BASE) +#define LPC_GPIO4 (( LPC_GPIO_TypeDef *) LPC_GPIO4_BASE) +#define LPC_WDT (( LPC_WDT_TypeDef *) LPC_WDT_BASE) +#define LPC_TIM0 (( LPC_TIM_TypeDef *) LPC_TIM0_BASE) +#define LPC_TIM1 (( LPC_TIM_TypeDef *) LPC_TIM1_BASE) +#define LPC_TIM2 (( LPC_TIM_TypeDef *) LPC_TIM2_BASE) +#define LPC_TIM3 (( LPC_TIM_TypeDef *) LPC_TIM3_BASE) +#define LPC_UART0 (( LPC_UART_TypeDef *) LPC_UART0_BASE) +#define LPC_UART1 (( LPC_UART1_TypeDef *) LPC_UART1_BASE) +#define LPC_UART2 (( LPC_UART_TypeDef *) LPC_UART2_BASE) +#define LPC_UART3 (( LPC_UART_TypeDef *) LPC_UART3_BASE) +#define LPC_PWM1 (( LPC_PWM_TypeDef *) LPC_PWM1_BASE) +#define LPC_I2C0 (( LPC_I2C_TypeDef *) LPC_I2C0_BASE) +#define LPC_I2C1 (( LPC_I2C_TypeDef *) LPC_I2C1_BASE) +#define LPC_I2C2 (( LPC_I2C_TypeDef *) LPC_I2C2_BASE) +#define LPC_I2S (( LPC_I2S_TypeDef *) LPC_I2S_BASE) +#define LPC_SPI (( LPC_SPI_TypeDef *) LPC_SPI_BASE) +#define LPC_RTC (( LPC_RTC_TypeDef *) LPC_RTC_BASE) +#define LPC_GPIOINT (( LPC_GPIOINT_TypeDef *) LPC_GPIOINT_BASE) +#define LPC_PINCON (( LPC_PINCON_TypeDef *) LPC_PINCON_BASE) +#define LPC_SSP0 (( LPC_SSP_TypeDef *) LPC_SSP0_BASE) +#define LPC_SSP1 (( LPC_SSP_TypeDef *) LPC_SSP1_BASE) +#define LPC_ADC (( LPC_ADC_TypeDef *) LPC_ADC_BASE) +#define LPC_DAC (( LPC_DAC_TypeDef *) LPC_DAC_BASE) +#define LPC_CANAF_RAM ((LPC_CANAF_RAM_TypeDef *) LPC_CANAF_RAM_BASE) +#define LPC_CANAF (( LPC_CANAF_TypeDef *) LPC_CANAF_BASE) +#define LPC_CANCR (( LPC_CANCR_TypeDef *) LPC_CANCR_BASE) +#define LPC_CAN1 (( LPC_CAN_TypeDef *) LPC_CAN1_BASE) +#define LPC_CAN2 (( LPC_CAN_TypeDef *) LPC_CAN2_BASE) +#define LPC_MCI (( LPC_MCI_TypeDef *) LPC_MCI_BASE) +#define LPC_EMAC (( LPC_EMAC_TypeDef *) LPC_EMAC_BASE) +#define LPC_GPDMA (( LPC_GPDMA_TypeDef *) LPC_GPDMA_BASE) +#define LPC_GPDMACH0 (( LPC_GPDMACH_TypeDef *) LPC_GPDMACH0_BASE) +#define LPC_GPDMACH1 (( LPC_GPDMACH_TypeDef *) LPC_GPDMACH1_BASE) +#define LPC_USB (( LPC_USB_TypeDef *) LPC_USB_BASE) +#define LPC_VIC (( LPC_VIC_TypeDef *) LPC_VIC_BASE) +#define LPC_EMC (( LPC_EMC_TypeDef *) LPC_EMC_BASE) + +#ifdef __cplusplus + } +#endif + +#endif // __LPC24xx_H +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_NXP/TARGET_LPC2460/TOOLCHAIN_GCC_ARM/LPC2460.ld Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,210 @@ +OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(vectors) + +/* Memory Definitions: */ +MEMORY +{ + Flash (rx) : ORIGIN = 0xA0001000, LENGTH = 512k + Ram (rwx) : ORIGIN = 0x40000040, LENGTH = 64k - 0x40 + UsbRam (rw) : ORIGIN = 0x7FD00000, LENGTH = 8k + EthRam (rw) : ORIGIN = 0x7FE00000, LENGTH = 16k + CanRam (rw) : ORIGIN = 0xE0038000, LENGTH = 2k + BatRam (rw) : ORIGIN = 0xE0084000, LENGTH = 2k +} + +/* Stack sizes: */ +UND_Stack_Size = 64; +SVC_Stack_Size = 64; +ABT_Stack_Size = 64; +FIQ_Stack_Size = 64; +IRQ_Stack_Size = 64; +User_Stack_Size = 4096; +Stack_Size_Total = UND_Stack_Size + SVC_Stack_Size + ABT_Stack_Size + FIQ_Stack_Size + IRQ_Stack_Size + User_Stack_Size; + +/* Stack tops for each mode: */ +__und_stack_top__ = __stacks_top__; +__abt_stack_top__ = __und_stack_top__ - UND_Stack_Size ; +__fiq_stack_top__ = __abt_stack_top__ - ABT_Stack_Size ; +__irq_stack_top__ = __fiq_stack_top__ - FIQ_Stack_Size ; +__svc_stack_top__ = __irq_stack_top__ - IRQ_Stack_Size ; +__usr_stack_top__ = __svc_stack_top__ - User_Stack_Size ; + +/* C-accessible symbols for memory address ranges: */ +__FLASH_segment_start__ = ORIGIN( Flash ); +__FLASH_segment_end__ = ORIGIN( Flash ) + LENGTH( Flash ); +__SRAM_segment_start__ = ORIGIN( Ram ); +__SRAM_segment_end__ = ORIGIN( Ram ) + LENGTH( Ram ); + +/* Stacks (full descending) at top of RAM, grows downward: + * + * __stack_min__ is used by the malloc implementation to ensure heap never collides + * with stack (assuming stack never grows beyond Stack_Size_Total in length) */ +__stacks_top__ = __SRAM_segment_end__; +__stacks_min__ = __SRAM_segment_end__ - Stack_Size_Total; + +SECTIONS +{ + /* first section is .text which is used for code */ + __text_start__ = . ; + .text : { + __privileged_code_start__ = . ; + KEEP( *( .vectors ) ) + *( .privileged_code ) + + __privileged_code_end__ = .; + + *( .text .text.* .gnu.linkonce.t.* ) + *( .plt ) + *( .gnu.warning ) + *( .glue_7t ) *( .glue_7 ) *( .vfp11_veneer ) + + *( .rodata .rodata.* .gnu.linkonce.r.* ) + + *(.ARM.extab* .gnu.linkonce.armextab.*) + *(.gcc_except_table) + *(.eh_frame_hdr) + *(.eh_frame) + + . = ALIGN( 4 ) ; + KEEP( *( .init ) ) + . = ALIGN( 4 ) ; + __preinit_array_start = . ; + KEEP( *( .preinit_array ) ) + __preinit_array_end = . ; + . = ALIGN( 4 ) ; + __init_array_start = . ; + KEEP( *( SORT( .init_array.* ) ) ) + KEEP( *( .init_array ) ) + __init_array_end = . ; + + . = ALIGN( 4 ) ; + KEEP( *crtbegin.o( .ctors ) ) + KEEP( *( EXCLUDE_FILE( *crtend.o ) .ctors ) ) + KEEP( *( SORT( .ctors.* ) ) ) + KEEP( *crtend.o( .ctors ) ) + + . = ALIGN( 4 ) ; + KEEP( *( .fini ) ) + . = ALIGN( 4 ) ; + __fini_array_start = . ; + KEEP( *( .fini_array ) ) + KEEP( *( SORT( .fini_array.* ) ) ) + __fini_array_end = . ; + + KEEP( *crtbegin.o( .dtors ) ) + KEEP( *( EXCLUDE_FILE( *crtend.o ) .dtors ) ) + KEEP( *( SORT( .dtors.* ) ) ) + KEEP( *crtend.o( .dtors ) ) + + } >Flash + + __exidx_start = . ; + .ARM.exidx : { + *( .ARM.exidx* .gnu.linkonce.armexidx.* ) + } >Flash + __exidx_end = . ; + + .text.align : { . = ALIGN( 8 ) ; } >Flash /* Alignment schenanigans */ + __text_end__ = . ; + + /* .bss section -- used for uninitialized data */ + /* Located at the start of RAM */ + .bss (NOLOAD) : { + __bss_start__ = . ; + *crt0.o( .ram_vectors ) + + __user_bss_start__ = . ; + *( .user_bss ) + __user_bss_end__ = . ; + + *( .shbss ) + *( .bss .bss.* .gnu.linkonce.b.* ) + *( COMMON ) + *( .ram.b ) + . = ALIGN( 8 ) ; + + __bss_end__ = . ; + } >Ram AT>Flash + + /* .data section -- used for initialized data */ + .data : { + __data_start__ = . ; + KEEP( *( .jcr ) ) + *( .got.plt ) *( .got ) + *( .shdata ) + *( .data .data.* .gnu.linkonce.d.* ) + *( .ram ) + . = ALIGN( 8 ) ; + __data_end__ = . ; + } >Ram AT>Flash + + __data_init_start__ = LOADADDR( .data ) ; + + /* Heap starts here and grows up in memory */ + . = ALIGN( 8 ) ; + __heap_start__ = . ; + end = . ; + __end__ = . ; + + .stab 0 (NOLOAD) : { *(.stab) } + .stabstr 0 (NOLOAD) : { *(.stabstr) } + /* DWARF debug sections. */ + /* Symbols in the DWARF debugging sections are relative to the */ + /* beginning of the section so we begin them at 0. */ + /* DWARF 1 */ + .debug 0 : { *(.debug) } + .line 0 : { *(.line) } + /* GNU DWARF 1 extensions */ + .debug_srcinfo 0 : { *(.debug_srcinfo) } + .debug_sfnames 0 : { *(.debug_sfnames) } + /* DWARF 1.1 and DWARF 2 */ + .debug_aranges 0 : { *(.debug_aranges) } + .debug_pubnames 0 : { *(.debug_pubnames) } + /* DWARF 2 */ + .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_line 0 : { *(.debug_line) } + .debug_frame 0 : { *(.debug_frame) } + .debug_str 0 : { *(.debug_str) } + .debug_loc 0 : { *(.debug_loc) } + .debug_macinfo 0 : { *(.debug_macinfo) } + /* SGI/MIPS DWARF 2 extensions */ + .debug_weaknames 0 : { *(.debug_weaknames) } + .debug_funcnames 0 : { *(.debug_funcnames) } + .debug_typenames 0 : { *(.debug_typenames) } + .debug_varnames 0 : { *(.debug_varnames) } + /* DWARF 3 */ + .debug_pubtypes 0 : { *(.debug_pubtypes) } + .debug_ranges 0 : { *(.debug_ranges) } + + .note.gnu.arm.ident 0 : { KEEP( *( .note.gnu.arm.ident ) ) } + .ARM.attributes 0 : { + KEEP( *( .ARM.attributes ) ) + KEEP( *( .gnu.attributes ) ) + } + /DISCARD/ : { *( .note.GNU-stack ) } + + /* C data can be defined as being in special purpose RAMs using + * __attribute__ ((section ("ethram"))) for example. */ + .usbram (NOLOAD): + { + *( .usbram ) + *( .usbram.* ) + } > UsbRam + .ethram (NOLOAD): + { + *( .ethram ) + *( .ethram.* ) + } > EthRam + .canram (NOLOAD): + { + *( .canram ) + *( .canram.* ) + } > CanRam + .batram (NOLOAD): + { + *( .batram ) + *( .batram.* ) + } > BatRam +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_NXP/TARGET_LPC2460/TOOLCHAIN_GCC_ARM/vector_functions.s Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,195 @@ +/* .include "vector_defns.h" */ + + + +.section .privileged_code, "ax" +.arm + + +.weak __mbed_fiq +.weak __mbed_undef +.weak __mbed_prefetch_abort +.weak __mbed_data_abort +.weak __mbed_irq +.weak __mbed_swi +.weak __mbed_dcc_irq +.weak __mbed_reset +.global __mbed_init_realmonitor +.weak SVC_Handler +.weak IRQ_Handler +/* .global __mbed_init */ + + + + +__mbed_fiq: + B __mbed_fiq +__mbed_undef: + LDR PC, =0x7fffffa0 +__mbed_prefetch_abort: + LDR PC, =0x7fffffb0 +__mbed_data_abort: + LDR PC, =0x7fffffc0 +__mbed_irq: +/* + If RTOS is enabled then goto RTOS IRQ handler +*/ + PUSH {R0} + LDR R0, =IRQ_Handler + CMP R0, #0 + POP {R0} + BNE IRQ_Handler +/* + else use CMSIS IRQ handler +*/ + MSR CPSR_c, #0x1F|0x80|0x40 + + STMDB sp!, {r0-r3,r12,lr} + + MOV r0, #0xFFFFFF00 + LDR r0, [r0] + + MOV lr, pc + BX r0 + + MOV r0, #0xFFFFFF00 + STR r0, [r0] + + LDMFD sp!,{r0-r3,r12,lr} + + MSR CPSR_c, #0x12|0x80|0x40 + + SUBS pc, lr, #4 + +__mbed_swi: +/* + If RTOS is enabled then goto RTOS SVC handler +*/ + PUSH {R0} + LDR R0, =SVC_Handler + CMP R0, #0 + POP {R0} + BNE SVC_Handler +/* + else use CMSIS SVC handler +*/ + STMFD sp!, {a4, r4, ip, lr} + + LDR r4, =0x40000040 + + LDR a4, =0x00940000 + LDR PC, =0x7ffff820 + +__mbed_dcc_irq: + LDMFD sp!,{r0-r3,r12,lr} + + MSR CPSR_c, #0x12|0x80|0x40 + + SUB lr, lr, #4 + STMFD sp!, {ip,lr} + + LDR LR, =0xfffff000 + STR LR, [LR, #0xf00] + + LDR PC, =0x7fffffe0 +/* + __mbed_reset is called after reset + we setup the stacks and realmonitor, then call Reset_Handler like on M3 +*/ + +.section .text, "ax" +.arm +.global Reset_handler +Reset_Handler: + .extern __libc_init_array + .extern SystemInit + .weak software_init_hook + LDR R0, =SystemInit + MOV LR, PC + BX R0 + +/* if (software_init_hook) // give control to the RTOS + software_init_hook(); // this will also call __libc_init_array +*/ + LDR R0, =software_init_hook + CMP R0, #0 + BEQ nortos + ORR R0,R0,#1 /* set thumb address */ + BX R0 +/* else */ +nortos: + LDR R0, =__libc_init_array + MOV LR, PC + BX R0 + + MSR CPSR_c, #0x1F /* enable irq */ + + LDR R0, =main + BX R0 + +__mbed_reset: + LDR R0, =( __SRAM_segment_end__ ) + + MSR CPSR_c, #0x1B|0x80|0x40 + MOV SP, R0 + SUB R0, R0, #0x00000040 + + MSR CPSR_c, #0x17|0x80|0x40 + MOV SP, R0 + SUB R0, R0, #0x00000040 + + MSR CPSR_c, #0x11|0x80|0x40 + MOV SP, R0 + SUB R0, R0, #0x00000040 + + MSR CPSR_c, #0x12|0x80|0x40 + MOV SP, R0 + SUB R0, R0, #0x00000040 + + MSR CPSR_c, #0x13|0x80|0x40 + MOV SP, R0 + SUB R0, R0, #0x00000040 + +/* + MSR CPSR_c, #0x10|0x80|0x40 + MOV SP, R0 +*/ + MSR CPSR_c, #0x1F|0x80|0x40 + MOV SP, R0 + + MSR CPSR_c, #0x13|0x80|0x40 /* execute in Supervisor mode */ + +/* Relocate .data section (Copy from ROM to RAM) */ + LDR R1, =__text_end__ /* _etext */ + LDR R2, =__data_start__ /* _data */ + LDR R3, =__data_end__ /* _edata */ + CMP R2, R3 + BEQ DataIsEmpty +LoopRel: CMP R2, R3 + LDRLO R0, [R1], #4 + STRLO R0, [R2], #4 + BLO LoopRel +DataIsEmpty: + +/* Clear .bss section (Zero init) */ + MOV R0, #0 + LDR R1, =__bss_start__ + LDR R2, =__bss_end__ + CMP R1,R2 + BEQ BSSIsEmpty +LoopZI: CMP R1, R2 + STRLO R0, [R1], #4 + BLO LoopZI +BSSIsEmpty: + + +/* Init realmonitor */ +/* + LDR R0, =__mbed_init_realmonitor + MOV LR, PC + BX R0 +*/ + +/* Go to Reset_Handler */ + LDR R0, =Reset_Handler + BX R0
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_NXP/TARGET_LPC2460/TOOLCHAIN_GCC_ARM/vector_table.s Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,45 @@ +# 1 "vector_table.s" +# 1 "<built-in>" +# 1 "<command line>" +# 1 "vector_table.s" +; + + + + +# 1 "vector_defns.h" 1 +# 7 "vector_table.s" 2 + +; + + + + + + + + .section .vectors, "ax" + .arm + + + .global __main + .global __mbed_reset + .global __mbed_undef + .global __mbed_swi + .global __mbed_prefetch_abort + .global __mbed_data_abort + .global __mbed_irq + .global __mbed_fiq + +; + + +_start: + LDR PC, =__mbed_reset + LDR PC, =__mbed_undef + LDR PC, =__mbed_swi + LDR PC, =__mbed_prefetch_abort + LDR PC, =__mbed_data_abort + NOP ; + LDR PC, =__mbed_irq + LDR PC, =__mbed_fiq
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_NXP/TARGET_LPC2460/cmsis.h Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,13 @@ +/* mbed Microcontroller Library - CMSIS + * Copyright (C) 2009-2015 ARM Limited. All rights reserved. + * + * A generic CMSIS include header, pulling in LPC2368 specifics + */ + +#ifndef MBED_CMSIS_H +#define MBED_CMSIS_H + +#include "LPC24xx.h" +#include "cmsis_nvic.h" + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_NXP/TARGET_LPC2460/cmsis_nvic.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,40 @@ +/* mbed Microcontroller Library + * CMSIS-style functionality to support dynamic vectors + ******************************************************************************* + * Copyright (c) 2011-2015 ARM Limited. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of ARM Limited nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + ******************************************************************************* + */ +#include "cmsis_nvic.h" + +void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) { + LPC_VIC->VectAddr[(int)IRQn] = vector; +} + +uint32_t NVIC_GetVector(IRQn_Type IRQn) { + return LPC_VIC->VectAddr[(int)IRQn]; +} +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_NXP/TARGET_LPC2460/cmsis_nvic.h Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,51 @@ +/* mbed Microcontroller Library + * CMSIS-style functionality to support dynamic vectors + ******************************************************************************* + * Copyright (c) 2011-2015 ARM Limited. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of ARM Limited nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + ******************************************************************************* + */ + +#ifndef MBED_CMSIS_NVIC_H +#define MBED_CMSIS_NVIC_H + +#define NVIC_NUM_VECTORS 32 +#define NVIC_USER_IRQ_OFFSET 0 + +#include "cmsis.h" + +#ifdef __cplusplus +extern "C" { +#endif + +void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector); +uint32_t NVIC_GetVector(IRQn_Type IRQn); + +#ifdef __cplusplus +} +#endif + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_NXP/TARGET_LPC2460/core_arm7.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,44 @@ +/* mbed Microcontroller Library + * Copyright (C) 2008-2015 ARM Limited. All rights reserved. + * + * ARM7 version of CMSIS-like functionality - not advised for use outside mbed! + * based on core_cm3.h, V1.20 + */ + +#include <stdint.h> + + +/* define compiler specific symbols */ +#if defined ( __CC_ARM ) + #define __ASM __asm /*!< asm keyword for armcc */ + #define __INLINE __inline /*!< inline keyword for armcc */ + +#elif defined ( __ICCARM__ ) + #define __ASM __asm /*!< asm keyword for iarcc */ + #define __INLINE inline /*!< inline keyword for iarcc. Only avaiable in High optimization mode! */ + +#elif defined ( __GNUC__ ) + #define __ASM __asm /*!< asm keyword for gcc */ + #define __INLINE inline /*!< inline keyword for gcc */ + +#elif defined ( __TASKING__ ) + #define __ASM __asm /*!< asm keyword for TASKING Compiler */ + #define __INLINE inline /*!< inline keyword for TASKING Compiler */ + +#endif + +#if defined ( __CC_ARM ) +/** + * @brief Return the Main Stack Pointer (return current ARM7 stack) + * + * @param none + * @return uint32_t Main Stack Pointer + * + * Return the current value of the MSP (main stack pointer) + * Cortex processor register + */ +uint32_t __get_MSP(void) +{ + return __current_sp(); +} +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_NXP/TARGET_LPC2460/core_arm7.h Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,343 @@ +/* mbed Microcontroller Library + * Copyright (C) 2008-2015 ARM Limited. All rights reserved. + * + * ARM7 version of CMSIS-like functionality - not advised for use outside mbed! + * based on core_cm3.h, V1.20 + */ + +#ifndef __ARM7_CORE_H__ +#define __ARM7_CORE_H__ + +#include "vector_defns.h" +#ifdef __cplusplus +extern "C" { +#endif +//#include "cmsis_nvic.h" + +#define __CM3_CMSIS_VERSION_MAIN (0x01) /*!< [31:16] CMSIS HAL main version */ +#define __CM3_CMSIS_VERSION_SUB (0x20) /*!< [15:0] CMSIS HAL sub version */ +#define __CM3_CMSIS_VERSION ((__CM3_CMSIS_VERSION_MAIN << 16) | __CM3_CMSIS_VERSION_SUB) /*!< CMSIS HAL version number */ + +#define __CORTEX_M (0x00) /*!< Cortex core */ + +/** + * Lint configuration \n + * ----------------------- \n + * + * The following Lint messages will be suppressed and not shown: \n + * \n + * --- Error 10: --- \n + * register uint32_t __regBasePri __asm("basepri"); \n + * Error 10: Expecting ';' \n + * \n + * --- Error 530: --- \n + * return(__regBasePri); \n + * Warning 530: Symbol '__regBasePri' (line 264) not initialized \n + * \n + * --- Error 550: --- \n + * __regBasePri = (basePri & 0x1ff); \n + * } \n + * Warning 550: Symbol '__regBasePri' (line 271) not accessed \n + * \n + * --- Error 754: --- \n + * uint32_t RESERVED0[24]; \n + * Info 754: local structure member '<some, not used in the HAL>' (line 109, file ./cm3_core.h) not referenced \n + * \n + * --- Error 750: --- \n + * #define __CM3_CORE_H__ \n + * Info 750: local macro '__CM3_CORE_H__' (line 43, file./cm3_core.h) not referenced \n + * \n + * --- Error 528: --- \n + * static __INLINE void NVIC_DisableIRQ(uint32_t IRQn) \n + * Warning 528: Symbol 'NVIC_DisableIRQ(unsigned int)' (line 419, file ./cm3_core.h) not referenced \n + * \n + * --- Error 751: --- \n + * } InterruptType_Type; \n + * Info 751: local typedef 'InterruptType_Type' (line 170, file ./cm3_core.h) not referenced \n + * \n + * \n + * Note: To re-enable a Message, insert a space before 'lint' * \n + * + */ + +/*lint -save */ +/*lint -e10 */ +/*lint -e530 */ +/*lint -e550 */ +/*lint -e754 */ +/*lint -e750 */ +/*lint -e528 */ +/*lint -e751 */ + +#include <stdint.h> /* Include standard types */ + +#if defined ( __CC_ARM ) +/** + * @brief Return the Main Stack Pointer (current ARM7 stack) + * + * @param none + * @return uint32_t Main Stack Pointer + * + * Return the current value of the MSP (main stack pointer) + * Cortex processor register + */ +extern uint32_t __get_MSP(void); +#endif + + +#if defined (__ICCARM__) + #include <intrinsics.h> /* IAR Intrinsics */ +#endif + + +#ifndef __NVIC_PRIO_BITS + #define __NVIC_PRIO_BITS 4 /*!< standard definition for NVIC Priority Bits */ +#endif + +typedef struct +{ + uint32_t IRQStatus; + uint32_t FIQStatus; + uint32_t RawIntr; + uint32_t IntSelect; + uint32_t IntEnable; + uint32_t IntEnClr; + uint32_t SoftInt; + uint32_t SoftIntClr; + uint32_t Protection; + uint32_t SWPriorityMask; + uint32_t RESERVED0[54]; + uint32_t VectAddr[32]; + uint32_t RESERVED1[32]; + uint32_t VectPriority[32]; + uint32_t RESERVED2[800]; + uint32_t Address; +} NVIC_TypeDef; + +#define NVIC_BASE (0xFFFFF000) +#define NVIC (( NVIC_TypeDef *) NVIC_BASE) + + + +/** + * IO definitions + * + * define access restrictions to peripheral registers + */ + +#ifdef __cplusplus +#define __I volatile /*!< defines 'read only' permissions */ +#else +#define __I volatile const /*!< defines 'read only' permissions */ +#endif +#define __O volatile /*!< defines 'write only' permissions */ +#define __IO volatile /*!< defines 'read / write' permissions */ + + + + + +#if defined ( __CC_ARM ) + #define __ASM __asm /*!< asm keyword for ARM Compiler */ + #define __INLINE __inline /*!< inline keyword for ARM Compiler */ + +#elif defined ( __ICCARM__ ) + #define __ASM __asm /*!< asm keyword for IAR Compiler */ + #define __INLINE inline /*!< inline keyword for IAR Compiler. Only avaiable in High optimization mode! */ + +#elif defined ( __GNUC__ ) + #define __ASM __asm /*!< asm keyword for GNU Compiler */ + #define __INLINE inline /*!< inline keyword for GNU Compiler */ + +#elif defined ( __TASKING__ ) + #define __ASM __asm /*!< asm keyword for TASKING Compiler */ + #define __INLINE inline /*!< inline keyword for TASKING Compiler */ + +#endif + + +/* ################### Compiler specific Intrinsics ########################### */ + +#if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/ +/* ARM armcc specific functions */ + +#define __enable_fault_irq __enable_fiq +#define __disable_fault_irq __disable_fiq + +#define __NOP __nop +//#define __WFI __wfi +//#define __WFE __wfe +//#define __SEV __sev +//#define __ISB() __isb(0) +//#define __DSB() __dsb(0) +//#define __DMB() __dmb(0) +//#define __REV __rev +//#define __RBIT __rbit +#define __LDREXB(ptr) ((unsigned char ) __ldrex(ptr)) +#define __LDREXH(ptr) ((unsigned short) __ldrex(ptr)) +#define __LDREXW(ptr) ((unsigned int ) __ldrex(ptr)) +#define __STREXB(value, ptr) __strex(value, ptr) +#define __STREXH(value, ptr) __strex(value, ptr) +#define __STREXW(value, ptr) __strex(value, ptr) + +#define __disable_irq() unsigned tmp_IntEnable = LPC_VIC->IntEnable; \ + LPC_VIC->IntEnClr = 0xffffffff + +#define __enable_irq() LPC_VIC->IntEnable = tmp_IntEnable + +#elif (defined (__ICCARM__)) /*------------------ ICC Compiler -------------------*/ + +#define __enable_irq __enable_interrupt /*!< global Interrupt enable */ +#define __disable_irq __disable_interrupt /*!< global Interrupt disable */ +#define __NOP __no_operation() /*!< no operation intrinsic in IAR Compiler */ + +#elif (defined (__GNUC__)) /*------------------ GNU Compiler ---------------------*/ + +static __INLINE void __enable_irq() { + unsigned long temp; + __asm__ __volatile__("mrs %0, cpsr\n" + "bic %0, %0, #0x80\n" + "msr cpsr_c, %0" + : "=r" (temp) + : + : "memory"); +} + +static __INLINE uint32_t __disable_irq() { + unsigned long old,temp; + __asm__ __volatile__("mrs %0, cpsr\n" + "orr %1, %0, #0xc0\n" + "msr cpsr_c, %1" + : "=r" (old), "=r" (temp) + : + : "memory"); + return (old & 0x80) == 0; +} + +static __INLINE void __NOP() { __ASM volatile ("nop"); } + +/** \brief Get Control Bits of Status Register + + This function returns the content of the Control Bits from the Program Status Register. + + \return Control Bits value + */ +__attribute__( ( always_inline ) ) static inline uint32_t __get_CONTROL(void) +{ + uint32_t result; + + __asm__ __volatile__ ("MRS %0, CPSR \n" + "AND %0,%0,#31" : "=r" (result) ); + return(result); +} +#define MODE_USER 0x10 +#define MODE_FIQ 0x11 +#define MODE_IRQ 0x12 +#define MODE_SUPERVISOR 0x13 +#define MODE_ABORT 0x17 +#define MODE_UNDEFINED 0x1B +#define MODE_SYSTEM 0x1F + + +#elif (defined (__TASKING__)) /*------------------ TASKING Compiler ---------------------*/ +/* TASKING carm specific functions */ + +/* + * The CMSIS functions have been implemented as intrinsics in the compiler. + * Please use "carm -?i" to get an up to date list of all instrinsics, + * Including the CMSIS ones. + */ + +#endif + + +/** + * @brief Enable Interrupt in NVIC Interrupt Controller + * + * @param IRQn_Type IRQn specifies the interrupt number + * @return none + * + * Enable a device specific interupt in the NVIC interrupt controller. + * The interrupt number cannot be a negative value. + */ +static __INLINE void NVIC_EnableIRQ(uint32_t IRQn) +{ + NVIC->IntEnable = 1 << (uint32_t)IRQn; +} + + +/** + * @brief Disable the interrupt line for external interrupt specified + * + * @param IRQn_Type IRQn is the positive number of the external interrupt + * @return none + * + * Disable a device specific interupt in the NVIC interrupt controller. + * The interrupt number cannot be a negative value. + */ +static __INLINE void NVIC_DisableIRQ(uint32_t IRQn) +{ + NVIC->IntEnClr = 1 << (uint32_t)IRQn; +} + +/** + * @brief Pend Interrupt in NVIC Interrupt Controller + * + * @param IRQn_Type IRQn specifies the interrupt number + * @return none + * + * Force software a device specific interupt in the NVIC interrupt controller. + * The interrupt number cannot be a negative value. + */ +static __INLINE void NVIC_PendIRQ(uint32_t IRQn) +{ + NVIC->SoftInt = 1 << (uint32_t)IRQn; +} + + +/** + * @brief Unpend the interrupt in NVIC Interrupt Controller + * + * @param IRQn_Type IRQn is the positive number of the external interrupt + * @return none + * + * Clear software device specific interupt in the NVIC interrupt controller. + * The interrupt number cannot be a negative value. + */ +static __INLINE void NVIC_UnpendIRQ(uint32_t IRQn) +{ + NVIC->SoftIntClr = 1 << (uint32_t)IRQn; +} + +/** + * @brief Is IRQ pending + * + * @param IRQn_Type IRQn is the positive number of the external interrupt + * @return 0 if IRQ is not pending + * 1 if IRQ is pending + * + * Returns software device specific interupt in the NVIC interrupt controller. + * The interrupt number cannot be a negative value. + */ +static __INLINE uint32_t NVIC_Pending(uint32_t IRQn) +{ + return (NVIC->SoftInt & (1 << (uint32_t)IRQn)) != 0; +} + +static __INLINE uint32_t __get_IPSR(void) +{ + unsigned i; + + for(i = 0; i < 32; i ++) + if(NVIC->Address == NVIC->VectAddr[i]) + return i; + return 1; // 1 is an invalid entry in the interrupt table on LPC2460 +} + +#ifdef __cplusplus +} +#endif + +#endif /* __ARM7_CORE_H__ */ + +/*lint -restore */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_NXP/TARGET_LPC2460/system_LPC24xx.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,164 @@ +/* mbed Microcontroller Library + * Copyright (C) 2008-2015 ARM Limited. All rights reserved. + * + * ARM7 version of CMSIS-like functionality - not advised for use outside mbed! + */ + +#include <stdint.h> +#include "LPC24xx.h" + +#define CLOCK_SETUP 1 +#define SCS_Val ((1<<4) | (1 << 5)) +#define CLKSRCSEL_Val 0x00000001 + +#define PLL0_SETUP 1 +#define PLL0CFG_Val 0x0000000B +#define CCLKCFG_Val 0x00000003 +#define USBCLKCFG_Val 0x00000005 +#define PCLKSEL0_Val 0x00000000 +#define PCLKSEL1_Val 0x00000000 +#define PCONP_Val (1 << PCEMC) +#define CLKOUTCFG_Val 0x00000000 +#define MAMCR_Val 0x00000002 +#define MAMTIM_Val 0x00000004 + +/*---------------------------------------------------------------------------- + DEFINES + *----------------------------------------------------------------------------*/ + +#define XTAL (12000000UL) /* Oscillator frequency */ +#define OSC_CLK ( XTAL) /* Main oscillator frequency */ +#define RTC_CLK ( 32000UL) /* RTC oscillator frequency */ +#define IRC_OSC ( 4000000UL) /* Internal RC oscillator frequency */ + +/* F_cco0 = (2 * M * F_in) / N */ +#define __M (((PLL0CFG_Val ) & 0x7FFF) + 1) +#define __N (((PLL0CFG_Val >> 16) & 0x00FF) + 1) +#define __FCCO(__F_IN) ((2 * __M * __F_IN) / __N) +#define __CCLK_DIV (((CCLKCFG_Val ) & 0x00FF) + 1) + +/* Determine core clock frequency according to settings */ + #if (PLL0_SETUP) + #if ((CLKSRCSEL_Val & 0x03) == 1) + #define __CORE_CLK (__FCCO(OSC_CLK) / __CCLK_DIV) + #elif ((CLKSRCSEL_Val & 0x03) == 2) + #define __CORE_CLK (__FCCO(RTC_CLK) / __CCLK_DIV) + #else + #define __CORE_CLK (__FCCO(IRC_OSC) / __CCLK_DIV) + #endif + #endif + + +/*---------------------------------------------------------------------------- + Clock Variable definitions + *----------------------------------------------------------------------------*/ +uint32_t SystemCoreClock = __CORE_CLK;/*!< System Clock Frequency (Core Clock)*/ + +/*---------------------------------------------------------------------------- + Clock functions + *----------------------------------------------------------------------------*/ +void SystemCoreClockUpdate (void) /* Get Core Clock Frequency */ +{ + /* Determine clock frequency according to clock register values */ + if (((LPC_SC->PLL0STAT >> 24) & 3) == 3) { /* If PLL0 enabled and connected */ + switch (LPC_SC->CLKSRCSEL & 0x03) { + case 0: /* Int. RC oscillator => PLL0 */ + case 3: /* Reserved, default to Int. RC */ + SystemCoreClock = (IRC_OSC * + (((2 * ((LPC_SC->PLL0STAT & 0x7FFF) + 1))) / + (((LPC_SC->PLL0STAT >> 16) & 0xFF) + 1)) / + ((LPC_SC->CCLKCFG & 0xFF)+ 1)); + break; + case 1: /* Main oscillator => PLL0 */ + SystemCoreClock = (OSC_CLK * + (((2 * ((LPC_SC->PLL0STAT & 0x7FFF) + 1))) / + (((LPC_SC->PLL0STAT >> 16) & 0xFF) + 1)) / + ((LPC_SC->CCLKCFG & 0xFF)+ 1)); + break; + case 2: /* RTC oscillator => PLL0 */ + SystemCoreClock = (RTC_CLK * + (((2 * ((LPC_SC->PLL0STAT & 0x7FFF) + 1))) / + (((LPC_SC->PLL0STAT >> 16) & 0xFF) + 1)) / + ((LPC_SC->CCLKCFG & 0xFF)+ 1)); + break; + } + } else { + switch (LPC_SC->CLKSRCSEL & 0x03) { + case 0: /* Int. RC oscillator => PLL0 */ + case 3: /* Reserved, default to Int. RC */ + SystemCoreClock = IRC_OSC / ((LPC_SC->CCLKCFG & 0xFF)+ 1); + break; + case 1: /* Main oscillator => PLL0 */ + SystemCoreClock = OSC_CLK / ((LPC_SC->CCLKCFG & 0xFF)+ 1); + break; + case 2: /* RTC oscillator => PLL0 */ + SystemCoreClock = RTC_CLK / ((LPC_SC->CCLKCFG & 0xFF)+ 1); + break; + } + } +} + +void vectorRemap() +{ + #define ARM_VECTOR_REBASE (0x40000000) + extern unsigned long __privileged_code_start__; /* Startup code address from linker */ + int i; + + /* Copy ARM vector table into internal RAM */ + for (i = 0; i <= 56; i+=2) + { + *(unsigned short *)(ARM_VECTOR_REBASE + i) = *(unsigned short *)((unsigned long)(&__privileged_code_start__) + i); + } + +// *(unsigned long *)(ARM_VECTOR_REBASE) = (unsigned long)armUnexpReset; + /* Remap the interrupt vectors to RAM */ + LPC_SC->MEMMAP = 2; +} + +/** + * Initialize the system + * + * @param none + * @return none + * + * @brief Setup the microcontroller system. + * Initialize the System and update the SystemFrequency variable. + */ +void SystemInit (void) +{ + LPC_WDT->WDMOD = 0; /* Disable internal watchdog */ +#if (CLOCK_SETUP) /* Clock Setup */ + LPC_SC->SCS = SCS_Val; + if (SCS_Val & (1 << 5)) { /* If Main Oscillator is enabled */ + while ((LPC_SC->SCS & (1 << 6)) == 0); /* Wait for Oscillator to be ready */ + } + + LPC_SC->CCLKCFG = CCLKCFG_Val; /* Setup Clock Divider */ + +#if (PLL0_SETUP) + LPC_SC->CLKSRCSEL = CLKSRCSEL_Val; /* Select Clock Source for PLL0 */ + LPC_SC->PLL0CFG = PLL0CFG_Val; + LPC_SC->PLL0CON = 0x01; /* PLL0 Enable */ + LPC_SC->PLL0FEED = 0xAA; + LPC_SC->PLL0FEED = 0x55; + while (!(LPC_SC->PLL0STAT & (1 << 26))); /* Wait for PLOCK0 */ + + LPC_SC->PLL0CON = 0x03; /* PLL0 Enable & Connect */ + LPC_SC->PLL0FEED = 0xAA; + LPC_SC->PLL0FEED = 0x55; +#endif + + LPC_SC->USBCLKCFG = USBCLKCFG_Val; /* Setup USB Clock Divider */ +#endif + + LPC_SC->PCLKSEL0 = PCLKSEL0_Val; /* Peripheral Clock Selection */ + LPC_SC->PCLKSEL1 = PCLKSEL1_Val; + + LPC_SC->PCONP = PCONP_Val; /* Power Control for Peripherals */ + + // Setup MAM + LPC_SC->MAMTIM = MAMTIM_Val; + LPC_SC->MAMCR = MAMCR_Val; + vectorRemap(); +} +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_NXP/TARGET_LPC2460/system_LPC24xx.h Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,44 @@ +/* mbed Microcontroller Library + * Copyright (C) 2008-2015 ARM Limited. All rights reserved. + * + * ARM7 version of CMSIS-like functionality - not advised for use outside mbed! + * based on cmsis system_LPC17xx.h + */ + +#ifndef __SYSTEM_LPC24xx_H +#define __SYSTEM_LPC24xx_H + +#ifdef __cplusplus + extern "C" { +#endif + +extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */ + +/** + * Initialize the system + * + * @param none + * @return none + * + * @brief Setup the microcontroller system. + * Initialize the System and update the SystemCoreClock variable. + */ +extern void SystemInit (void); + +/** + * Update SystemCoreClock variable + * + * @param none + * @return none + * + * @brief Updates the SystemCoreClock with current core Clock + * retrieved from cpu registers. + */ +extern void SystemCoreClockUpdate (void); + + +#ifdef __cplusplus +} +#endif + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_NXP/TARGET_LPC2460/vector_defns.h Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,77 @@ +/* mbed Microcontroller Library - Vectors + * Copyright (c) 2006-2015 ARM Limited. All rights reserved. + */ + +#ifndef MBED_VECTOR_DEFNS_H +#define MBED_VECTOR_DEFNS_H + +// Assember Macros +#ifdef __ARMCC_VERSION +#define EXPORT(x) EXPORT x +#define WEAK_EXPORT(x) EXPORT x [WEAK] +#define IMPORT(x) IMPORT x +#define LABEL(x) x +#else +#define EXPORT(x) .global x +#define WEAK_EXPORT(x) .weak x +#define IMPORT(x) .global x +#define LABEL(x) x: +#endif + +// RealMonitor +// Requires RAM (0x40000040-0x4000011F) to be allocated by the linker + +// RealMonitor entry points +#define rm_init_entry 0x7fffff91 +#define rm_undef_handler 0x7fffffa0 +#define rm_prefetchabort_handler 0x7fffffb0 +#define rm_dataabort_handler 0x7fffffc0 +#define rm_irqhandler2 0x7fffffe0 +//#define rm_RunningToStopped 0x7ffff808 // ARM - MBED64 +#define rm_RunningToStopped 0x7ffff820 // ARM - PHAT40 + +// Unofficial RealMonitor entry points and variables +#define RM_MSG_SWI 0x00940000 +#define StateP 0x40000040 + +// VIC register addresses +#define VIC_Base 0xfffff000 +#define VICAddress_Offset 0xf00 +#define VICVectAddr0_Offset 0x100 +#define VICVectAddr2_Offset 0x108 +#define VICVectAddr3_Offset 0x10c +#define VICVectAddr31_Offset 0x17c +#define VICIntEnClr_Offset 0x014 +#define VICIntEnClr (*(volatile unsigned long *)(VIC_Base + 0x014)) +#define VICVectAddr2 (*(volatile unsigned long *)(VIC_Base + 0x108)) +#define VICVectAddr3 (*(volatile unsigned long *)(VIC_Base + 0x10C)) + +// ARM Mode bits and Interrupt flags in PSRs +#define Mode_USR 0x10 +#define Mode_FIQ 0x11 +#define Mode_IRQ 0x12 +#define Mode_SVC 0x13 +#define Mode_ABT 0x17 +#define Mode_UND 0x1B +#define Mode_SYS 0x1F +#define I_Bit 0x80 // when I bit is set, IRQ is disabled +#define F_Bit 0x40 // when F bit is set, FIQ is disabled + +// MCU RAM +#define LPC2460_RAM_ADDRESS 0x40000000 // RAM Base +#define LPC2460_RAM_SIZE 0x10000 // 64KB + +// ISR Stack Allocation +#define UND_stack_size 0x00000040 +#define SVC_stack_size 0x00000040 +#define ABT_stack_size 0x00000040 +#define FIQ_stack_size 0x00000000 +#define IRQ_stack_size 0x00000040 + +#define ISR_stack_size (UND_stack_size + SVC_stack_size + ABT_stack_size + FIQ_stack_size + IRQ_stack_size) + +// Full Descending Stack, so top-most stack points to just above the top of RAM +#define LPC2460_STACK_TOP (LPC2460_RAM_ADDRESS + LPC2460_RAM_SIZE) +#define USR_STACK_TOP (LPC2460_STACK_TOP - ISR_stack_size) + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_NXP/TARGET_LPC2460/vector_realmonitor.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,22 @@ +/* mbed Microcontroller Library - RealMonitor + * Copyright (c) 2006-2015 ARM Limited. All rights reserved. + */ +#include "vector_defns.h" + +extern void __mbed_dcc_irq(void); + +/* Function: __mbed_init_realmonitor + * Setup the RealMonitor DCC Interrupt Handlers + */ +void __mbed_init_realmonitor(void) __attribute__((weak)); +void __mbed_init_realmonitor() { + // Disable all interrupts + VICIntEnClr = 0xffffffff; + + // Set DCC interrupt vector addresses + VICVectAddr2 = (unsigned)&__mbed_dcc_irq; + VICVectAddr3 = (unsigned)&__mbed_dcc_irq; + + // Initialise RealMonitor + ((void (*)(void))rm_init_entry)(); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/PeripheralNames.h Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,120 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef MBED_PERIPHERALNAMES_H +#define MBED_PERIPHERALNAMES_H + +#include "cmsis.h" + +#ifdef __cplusplus +extern "C" { +#endif + +typedef enum { + UART_0 = (int)LPC_UART0_BASE, + UART_1 = (int)LPC_UART1_BASE, + UART_2 = (int)LPC_UART2_BASE, + UART_3 = (int)LPC_UART3_BASE +} UARTName; + +typedef enum { + ADC0_0 = 0, + ADC0_1, + ADC0_2, + ADC0_3, + ADC0_4, + ADC0_5, + ADC0_6, + ADC0_7 +} ADCName; + +typedef enum { + DAC_0 = 0 +} DACName; + +typedef enum { + SPI_0 = (int)LPC_SSP0_BASE, + SPI_1 = (int)LPC_SSP1_BASE +} SPIName; + +typedef enum { + I2C_0 = (int)LPC_I2C0_BASE, + I2C_1 = (int)LPC_I2C1_BASE, + I2C_2 = (int)LPC_I2C2_BASE +} I2CName; + +typedef enum { + PWM_1 = 1, + PWM_2, + PWM_3, + PWM_4, + PWM_5, + PWM_6 +} PWMName; + +typedef enum { + CAN_1 = (int)LPC_CAN1_BASE, + CAN_2 = (int)LPC_CAN2_BASE +} CANName; + +#define STDIO_UART_TX USBTX +#define STDIO_UART_RX USBRX +#define STDIO_UART UART_2 + +// Default peripherals +#define MBED_SPI0 p5, p6, p7, p8 +//#define MBED_SPI1 p11, p12, p13, p14 + +#define MBED_UART0 p9, p10 +#define MBED_UART1 p13, p14 +#define MBED_UART2 p15, p16 +#define MBED_UARTUSB USBTX, USBRX + +#define MBED_I2C0 p17, p18 +//#define MBED_I2C1 p9, p10 + +#define MBED_CAN0 p19, p20 + +#define MBED_ANALOGOUT0 p21 + +#define MBED_ANALOGIN0 p22 +#define MBED_ANALOGIN1 p23 +//#define MBED_ANALOGIN2 p17 +//#define MBED_ANALOGIN3 p18 +//#define MBED_ANALOGIN4 p19 +//#define MBED_ANALOGIN5 p20 + +#define MBED_PWMOUT0 p24 +#define MBED_PWMOUT1 p25 +#define MBED_PWMOUT2 p26 +#define MBED_PWMOUT3 p27 +//#define MBED_PWMOUT4 p22 +//#define MBED_PWMOUT5 p21 + +#define MBED_USB_D_PLUS p28 +#define MBED_USB_D_MINUS p29 + +#define MBED_MCICLK p30 +#define MBED_MCICMD p31 +#define MBED_MCIDAT0 p32 +#define MBED_MCIDAT1 p33 +#define MBED_MCIDAT2 p34 +#define MBED_MCIDAT3 p35 + +#ifdef __cplusplus +} +#endif + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/PinNames.h Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,112 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef MBED_PINNAMES_H +#define MBED_PINNAMES_H + +#include "cmsis.h" + +#ifdef __cplusplus +extern "C" { +#endif + +typedef enum { + PIN_INPUT, + PIN_OUTPUT +} PinDirection; + +#define PORT_SHIFT 5 + +typedef enum { + // LPC Pin Names + P0_0 = LPC_GPIO0_BASE, + P0_1, P0_2, P0_3, P0_4, P0_5, P0_6, P0_7, P0_8, P0_9, P0_10, P0_11, P0_12, P0_13, P0_14, P0_15, P0_16, P0_17, P0_18, P0_19, P0_20, P0_21, P0_22, P0_23, P0_24, P0_25, P0_26, P0_27, P0_28, P0_29, P0_30, P0_31, + P1_0, P1_1, P1_2, P1_3, P1_4, P1_5, P1_6, P1_7, P1_8, P1_9, P1_10, P1_11, P1_12, P1_13, P1_14, P1_15, P1_16, P1_17, P1_18, P1_19, P1_20, P1_21, P1_22, P1_23, P1_24, P1_25, P1_26, P1_27, P1_28, P1_29, P1_30, P1_31, + P2_0, P2_1, P2_2, P2_3, P2_4, P2_5, P2_6, P2_7, P2_8, P2_9, P2_10, P2_11, P2_12, P2_13, P2_14, P2_15, P2_16, P2_17, P2_18, P2_19, P2_20, P2_21, P2_22, P2_23, P2_24, P2_25, P2_26, P2_27, P2_28, P2_29, P2_30, P2_31, + P3_0, P3_1, P3_2, P3_3, P3_4, P3_5, P3_6, P3_7, P3_8, P3_9, P3_10, P3_11, P3_12, P3_13, P3_14, P3_15, P3_16, P3_17, P3_18, P3_19, P3_20, P3_21, P3_22, P3_23, P3_24, P3_25, P3_26, P3_27, P3_28, P3_29, P3_30, P3_31, + P4_0, P4_1, P4_2, P4_3, P4_4, P4_5, P4_6, P4_7, P4_8, P4_9, P4_10, P4_11, P4_12, P4_13, P4_14, P4_15, P4_16, P4_17, P4_18, P4_19, P4_20, P4_21, P4_22, P4_23, P4_24, P4_25, P4_26, P4_27, P4_28, P4_29, P4_30, P4_31, + + // mbed DIP Pin Names + p5 = P0_18, + p6 = P0_17, + p7 = P0_15, + p8 = P0_16, + + p9 = P0_2, + p10 = P0_3, + p11 = P0_18, + p12 = P0_17, + p13 = P2_0, + p14 = P2_1, + p15 = P4_28, + p16 = P4_29, + p17 = P2_30, + p18 = P2_31, + p19 = P0_0, + p20 = P0_1, + p21 = P0_26, + p22 = P0_12, + p23 = P0_13, + p24 = P1_20, + p25 = P1_21, + p26 = P1_23, + p27 = P1_24, + p28 = P0_29, + p29 = P0_30, + p30 = P1_2, + p31 = P1_3, + p32 = P1_6, + p33 = P1_7, + p34 = P1_11, + p35 = P1_12, + + // Other mbed Pin Names + LED1 = P1_19, + LED2 = P2_26, + LED3 = P2_27, + LED4 = P2_27, + + USBTX = P2_8, + USBRX = P2_9, + + EXT_WDT = P0_10, + + // Not connected + NC = (int)0xFFFFFFFF +} PinName; + +typedef enum { + PullUp = 0, + PullDown = 3, + PullNone = 2, + OpenDrain = 4, + PullDefault = PullDown +} PinMode; + +// version of PINCON_TypeDef using register arrays +typedef struct { + __IO uint32_t PINSEL[11]; + uint32_t RESERVED0[5]; + __IO uint32_t PINMODE[10]; +} PINCONARRAY_TypeDef; + +#define PINCONARRAY ((PINCONARRAY_TypeDef *)LPC_PINCON_BASE) + +#ifdef __cplusplus +} +#endif + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/PortNames.h Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,38 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef MBED_PORTNAMES_H +#define MBED_PORTNAMES_H + +#ifdef __cplusplus +extern "C" { +#endif + +typedef enum { + Port0 = 0, + Port1 = 1, + Port2 = 2, + Port3 = 3, + Port4 = 4 +} PortName; + +#define PORT_0 Port0 +#define PORT_1 Port1 +#define PORT_2 Port2 +#define PORT_3 Port3 +#ifdef __cplusplus +} +#endif +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/analogin_api.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,125 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "mbed_assert.h" +#include "analogin_api.h" +#include "cmsis.h" +#include "pinmap.h" + +#define ANALOGIN_MEDIAN_FILTER 1 + +#define ADC_10BIT_RANGE 0x3FF +#define ADC_12BIT_RANGE 0xFFF + +static inline int div_round_up(int x, int y) { + return (x + (y - 1)) / y; +} + +static const PinMap PinMap_ADC[] = { + {P0_23, ADC0_0, 1}, + {P0_24, ADC0_1, 1}, + {P0_25, ADC0_2, 1}, + {P0_26, ADC0_3, 1}, + {P1_30, ADC0_4, 3}, + {P1_31, ADC0_5, 3}, + {P0_12, ADC0_6, 3}, + {P0_13, ADC0_7, 3}, + {NC, NC, 0} +}; + +#define ADC_RANGE ADC_10BIT_RANGE + + +void analogin_init(analogin_t *obj, PinName pin) { + obj->adc = (ADCName)pinmap_peripheral(pin, PinMap_ADC); + MBED_ASSERT(obj->adc != (ADCName)NC); + + // ensure power is turned on + LPC_SC->PCONP |= (1 << PCADC); + + // set PCLK of ADC to /1 + LPC_SC->PCLKSEL0 &= ~(0x3 << 24); + LPC_SC->PCLKSEL0 |= (0x1 << 24); + uint32_t PCLK = SystemCoreClock; + + // calculate minimum clock divider + // clkdiv = divider - 1 + uint32_t MAX_ADC_CLK = 4500000; + uint32_t clkdiv = div_round_up(PCLK, MAX_ADC_CLK) - 1; + + // Set the generic software-controlled ADC settings + LPC_ADC->ADCR = (0 << 0) // SEL: 0 = no channels selected + | (clkdiv << 8) // CLKDIV: PCLK max ~= 25MHz, /25 to give safe 1MHz at fastest + | (0 << 16) // BURST: 0 = software control + | (0 << 17) // CLKS: not applicable + | (1 << 21) // PDN: 1 = operational + | (0 << 24) // START: 0 = no start + | (0 << 27); // EDGE: not applicable + + pinmap_pinout(pin, PinMap_ADC); +} + +static inline uint32_t adc_read(analogin_t *obj) { + // Select the appropriate channel and start conversion + LPC_ADC->ADCR &= ~0xFF; + LPC_ADC->ADCR |= 1 << (int)obj->adc; + LPC_ADC->ADCR |= 1 << 24; + + // Repeatedly get the sample data until DONE bit + unsigned int data; + do { + data = LPC_ADC->ADGDR; + } while ((data & ((unsigned int)1 << 31)) == 0); + + // Stop conversion + LPC_ADC->ADCR &= ~(1 << 24); + + return (data >> 6) & ADC_RANGE; // 10 bit +} + +static inline void order(uint32_t *a, uint32_t *b) { + if (*a > *b) { + uint32_t t = *a; + *a = *b; + *b = t; + } +} + +static inline uint32_t adc_read_u32(analogin_t *obj) { + uint32_t value; +#if ANALOGIN_MEDIAN_FILTER + uint32_t v1 = adc_read(obj); + uint32_t v2 = adc_read(obj); + uint32_t v3 = adc_read(obj); + order(&v1, &v2); + order(&v2, &v3); + order(&v1, &v2); + value = v2; +#else + value = adc_read(obj); +#endif + return value; +} + +uint16_t analogin_read_u16(analogin_t *obj) { + uint32_t value = adc_read_u32(obj); + + return (value << 6) | ((value >> 4) & 0x003F); // 10 bit +} + +float analogin_read(analogin_t *obj) { + uint32_t value = adc_read_u32(obj); + return (float)value * (1.0f / (float)ADC_RANGE); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/analogout_api.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,75 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "mbed_assert.h" +#include "analogout_api.h" +#include "cmsis.h" +#include "pinmap.h" + +static const PinMap PinMap_DAC[] = { + {P0_26, DAC_0, 2}, + {NC , NC , 0} +}; + +void analogout_init(dac_t *obj, PinName pin) { + obj->dac = (DACName)pinmap_peripheral(pin, PinMap_DAC); + MBED_ASSERT(obj->dac != (DACName)NC); + + // power is on by default, set DAC clk divider is /4 + LPC_SC->PCLKSEL0 &= ~(0x3 << 22); + + // map out (must be done before accessing registers) + pinmap_pinout(pin, PinMap_DAC); + + analogout_write_u16(obj, 0); +} + +void analogout_free(dac_t *obj) {} + +static inline void dac_write(int value) { + value &= 0x3FF; // 10-bit + + // Set the DAC output + LPC_DAC->DACR = (0 << 16) // bias = 0 + | (value << 6); +} + +static inline int dac_read() { + return (LPC_DAC->DACR >> 6) & 0x3FF; +} + +void analogout_write(dac_t *obj, float value) { + if (value < 0.0f) { + dac_write(0); + } else if (value > 1.0f) { + dac_write(0x3FF); + } else { + dac_write(value * (float)0x3FF); + } +} + +void analogout_write_u16(dac_t *obj, uint16_t value) { + dac_write(value >> 6); // 10-bit +} + +float analogout_read(dac_t *obj) { + uint32_t value = dac_read(); + return (float)value * (1.0f / (float)0x3FF); +} + +uint16_t analogout_read_u16(dac_t *obj) { + uint32_t value = dac_read(); // 10-bit + return (value << 6) | ((value >> 4) & 0x003F); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/can_api.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,303 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "mbed_assert.h" +#include "can_api.h" +#include "cmsis.h" +#include "pinmap.h" + +#include <math.h> +#include <string.h> + +/* Acceptance filter mode in AFMR register */ +#define ACCF_OFF 0x01 +#define ACCF_BYPASS 0x02 +#define ACCF_ON 0x00 +#define ACCF_FULLCAN 0x04 + +/* There are several bit timing calculators on the internet. +http://www.port.de/engl/canprod/sv_req_form.html +http://www.kvaser.com/can/index.htm +*/ + +static const PinMap PinMap_CAN_RD[] = { + {P0_0 , CAN_1, 1}, + {P0_4 , CAN_2, 2}, + {P0_21, CAN_1, 3}, + {P2_7 , CAN_2, 1}, + {NC , NC , 0} +}; + +static const PinMap PinMap_CAN_TD[] = { + {P0_1 , CAN_1, 1}, + {P0_5 , CAN_2, 2}, + {P0_22, CAN_1, 3}, + {P2_8 , CAN_2, 1}, + {NC , NC , 0} +}; + +// Type definition to hold a CAN message +struct CANMsg { + unsigned int reserved1 : 16; + unsigned int dlc : 4; // Bits 16..19: DLC - Data Length Counter + unsigned int reserved0 : 10; + unsigned int rtr : 1; // Bit 30: Set if this is a RTR message + unsigned int type : 1; // Bit 31: Set if this is a 29-bit ID message + unsigned int id; // CAN Message ID (11-bit or 29-bit) + unsigned char data[8]; // CAN Message Data Bytes 0-7 +}; +typedef struct CANMsg CANMsg; + +static uint32_t can_disable(can_t *obj) { + uint32_t sm = obj->dev->MOD; + obj->dev->MOD |= 1; + return sm; +} + +static inline void can_enable(can_t *obj) { + if (obj->dev->MOD & 1) { + obj->dev->MOD &= ~(1); + } +} + +int can_mode(can_t *obj, CanMode mode) { + return 0; // not implemented +} + +int can_filter(can_t *obj, uint32_t id, uint32_t mask, CANFormat format, int32_t handle) { + return 0; // not implemented +} + +static int can_pclk(can_t *obj) { + int value = 0; + switch ((int)obj->dev) { + case CAN_1: value = (LPC_SC->PCLKSEL0 & (0x3 << 26)) >> 26; break; + case CAN_2: value = (LPC_SC->PCLKSEL0 & (0x3 << 28)) >> 28; break; + } + + switch (value) { + case 1: return 1; + case 2: return 2; + case 3: return 6; + default: return 4; + } +} + +// This table has the sampling points as close to 75% as possible. The first +// value is TSEG1, the second TSEG2. +static const int timing_pts[23][2] = { + {0x0, 0x0}, // 2, 50% + {0x1, 0x0}, // 3, 67% + {0x2, 0x0}, // 4, 75% + {0x3, 0x0}, // 5, 80% + {0x3, 0x1}, // 6, 67% + {0x4, 0x1}, // 7, 71% + {0x5, 0x1}, // 8, 75% + {0x6, 0x1}, // 9, 78% + {0x6, 0x2}, // 10, 70% + {0x7, 0x2}, // 11, 73% + {0x8, 0x2}, // 12, 75% + {0x9, 0x2}, // 13, 77% + {0x9, 0x3}, // 14, 71% + {0xA, 0x3}, // 15, 73% + {0xB, 0x3}, // 16, 75% + {0xC, 0x3}, // 17, 76% + {0xD, 0x3}, // 18, 78% + {0xD, 0x4}, // 19, 74% + {0xE, 0x4}, // 20, 75% + {0xF, 0x4}, // 21, 76% + {0xF, 0x5}, // 22, 73% + {0xF, 0x6}, // 23, 70% + {0xF, 0x7}, // 24, 67% +}; + +static unsigned int can_speed(unsigned int sclk, unsigned int pclk, unsigned int cclk, unsigned char psjw) { + uint32_t btr; + uint16_t brp = 0; + uint32_t calcbit; + uint32_t bitwidth; + int hit = 0; + int bits; + + bitwidth = sclk / (pclk * cclk); + + brp = bitwidth / 0x18; + while ((!hit) && (brp < bitwidth / 4)) { + brp++; + for (bits = 22; bits > 0; bits--) { + calcbit = (bits + 3) * (brp + 1); + if (calcbit == bitwidth) { + hit = 1; + break; + } + } + } + + if (hit) { + btr = ((timing_pts[bits][1] << 20) & 0x00700000) + | ((timing_pts[bits][0] << 16) & 0x000F0000) + | ((psjw << 14) & 0x0000C000) + | ((brp << 0) & 0x000003FF); + } else { + btr = 0xFFFFFFFF; + } + + return btr; +} + +void can_init(can_t *obj, PinName rd, PinName td) { + CANName can_rd = (CANName)pinmap_peripheral(rd, PinMap_CAN_RD); + CANName can_td = (CANName)pinmap_peripheral(td, PinMap_CAN_TD); + obj->dev = (LPC_CAN_TypeDef *)pinmap_merge(can_rd, can_td); + MBED_ASSERT((int)obj->dev != NC); + + switch ((int)obj->dev) { + case CAN_1: LPC_SC->PCONP |= 1 << PCAN1; break; + case CAN_2: LPC_SC->PCONP |= 1 << PCAN2; break; + } + + pinmap_pinout(rd, PinMap_CAN_RD); + pinmap_pinout(td, PinMap_CAN_TD); + + can_reset(obj); + obj->dev->IER = 0; // Disable Interrupts + can_frequency(obj, 100000); + + LPC_CANAF->AFMR = ACCF_BYPASS; // Bypass Filter +} + +void can_free(can_t *obj) { + switch ((int)obj->dev) { + case CAN_1: LPC_SC->PCONP &= ~(1 << PCAN1); break; + case CAN_2: LPC_SC->PCONP &= ~(1 << PCAN2); break; + } +} + +int can_frequency(can_t *obj, int f) { + int pclk = can_pclk(obj); + int btr = can_speed(SystemCoreClock, pclk, (unsigned int)f, 1); + + if (btr > 0) { + uint32_t modmask = can_disable(obj); + obj->dev->BTR = btr; + obj->dev->MOD = modmask; + return 1; + } else { + return 0; + } +} + +int can_write(can_t *obj, CAN_Message msg, int cc) { + unsigned int CANStatus; + CANMsg m; + + can_enable(obj); + + m.id = msg.id ; + m.dlc = msg.len & 0xF; + m.rtr = msg.type; + m.type = msg.format; + memcpy(m.data, msg.data, msg.len); + const unsigned int *buf = (const unsigned int *)&m; + + CANStatus = obj->dev->SR; + if (CANStatus & 0x00000004) { + obj->dev->TFI1 = buf[0] & 0xC00F0000; + obj->dev->TID1 = buf[1]; + obj->dev->TDA1 = buf[2]; + obj->dev->TDB1 = buf[3]; + if (cc) { + obj->dev->CMR = 0x30; + } else { + obj->dev->CMR = 0x21; + } + return 1; + + } else if (CANStatus & 0x00000400) { + obj->dev->TFI2 = buf[0] & 0xC00F0000; + obj->dev->TID2 = buf[1]; + obj->dev->TDA2 = buf[2]; + obj->dev->TDB2 = buf[3]; + if (cc) { + obj->dev->CMR = 0x50; + } else { + obj->dev->CMR = 0x41; + } + return 1; + + } else if (CANStatus & 0x00040000) { + obj->dev->TFI3 = buf[0] & 0xC00F0000; + obj->dev->TID3 = buf[1]; + obj->dev->TDA3 = buf[2]; + obj->dev->TDB3 = buf[3]; + if (cc) { + obj->dev->CMR = 0x90; + } else { + obj->dev->CMR = 0x81; + } + return 1; + } + + return 0; +} + +int can_read(can_t *obj, CAN_Message *msg, int handle) { + CANMsg x; + unsigned int *i = (unsigned int *)&x; + + can_enable(obj); + + if (obj->dev->GSR & 0x1) { + *i++ = obj->dev->RFS; // Frame + *i++ = obj->dev->RID; // ID + *i++ = obj->dev->RDA; // Data A + *i++ = obj->dev->RDB; // Data B + obj->dev->CMR = 0x04; // release receive buffer + + msg->id = x.id; + msg->len = x.dlc; + msg->format = (x.type)? CANExtended : CANStandard; + msg->type = (x.rtr)? CANRemote: CANData; + memcpy(msg->data,x.data,x.dlc); + return 1; + } + + return 0; +} + +void can_reset(can_t *obj) { + can_disable(obj); + obj->dev->GSR = 0; // Reset error counter when CAN1MOD is in reset +} + +unsigned char can_rderror(can_t *obj) { + return (obj->dev->GSR >> 16) & 0xFF; +} + +unsigned char can_tderror(can_t *obj) { + return (obj->dev->GSR >> 24) & 0xFF; +} + +void can_monitor(can_t *obj, int silent) { + uint32_t mod_mask = can_disable(obj); + if (silent) { + obj->dev->MOD |= (1 << 1); + } else { + obj->dev->MOD &= ~(1 << 1); + } + if (!(mod_mask & 1)) { + can_enable(obj); + } +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/device.h Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,59 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef MBED_DEVICE_H +#define MBED_DEVICE_H + +#define DEVICE_PORTIN 1 +#define DEVICE_PORTOUT 1 +#define DEVICE_PORTINOUT 1 + +#define DEVICE_INTERRUPTIN 1 + +#define DEVICE_ANALOGIN 1 +#define DEVICE_ANALOGOUT 1 + +#define DEVICE_SERIAL 1 + +#define DEVICE_I2C 1 +#define DEVICE_I2CSLAVE 1 + +#define DEVICE_SPI 1 +#define DEVICE_SPISLAVE 1 + +#define DEVICE_CAN 1 + +#define DEVICE_RTC 1 + +#define DEVICE_ETHERNET 1 + +#define DEVICE_PWMOUT 1 + +#define DEVICE_SEMIHOST 0 +#define DEVICE_LOCALFILESYSTEM 0 +#define DEVICE_ID_LENGTH 32 +#define DEVICE_MAC_OFFSET 20 + +#define DEVICE_SLEEP 0 + +#define DEVICE_DEBUG_AWARENESS 0 + +#define DEVICE_STDIO_MESSAGES 1 + +#define DEVICE_ERROR_PATTERN 1 + +#include "objects.h" + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/ethernet_api.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,935 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include <string.h> + +#include "ethernet_api.h" +#include "cmsis.h" +#include "mbed_interface.h" +#include "toolchain.h" +#include "mbed_error.h" + +#define NEW_LOGIC 0 +#define NEW_ETH_BUFFER 0 + +#if NEW_ETH_BUFFER + +#define NUM_RX_FRAG 4 // Number of Rx Fragments (== packets) +#define NUM_TX_FRAG 3 // Number of Tx Fragments (== packets) + +#define ETH_MAX_FLEN 1536 // Maximum Ethernet Frame Size +#define ETH_FRAG_SIZE ETH_MAX_FLEN // Packet Fragment size (same as packet length) + +#else + +// Memfree calculation: +// (16 * 1024) - ((2 * 4 * NUM_RX) + (2 * 4 * NUM_RX) + (0x300 * NUM_RX) + +// (2 * 4 * NUM_TX) + (1 * 4 * NUM_TX) + (0x300 * NUM_TX)) = 8556 +/* EMAC Memory Buffer configuration for 16K Ethernet RAM. */ +#define NUM_RX_FRAG 4 /* Num.of RX Fragments 4*1536= 6.0kB */ +#define NUM_TX_FRAG 3 /* Num.of TX Fragments 3*1536= 4.6kB */ +//#define ETH_FRAG_SIZE 1536 /* Packet Fragment size 1536 Bytes */ + +//#define ETH_MAX_FLEN 1536 /* Max. Ethernet Frame Size */ +#define ETH_FRAG_SIZE 0x300 /* Packet Fragment size 1536/2 Bytes */ +#define ETH_MAX_FLEN 0x300 /* Max. Ethernet Frame Size */ + +const int ethernet_MTU_SIZE = 0x300; + +#endif + +#define ETHERNET_ADDR_SIZE 6 + +PACKED struct RX_DESC_TypeDef { /* RX Descriptor struct */ + unsigned int Packet; + unsigned int Ctrl; +}; +typedef struct RX_DESC_TypeDef RX_DESC_TypeDef; + +PACKED struct RX_STAT_TypeDef { /* RX Status struct */ + unsigned int Info; + unsigned int HashCRC; +}; +typedef struct RX_STAT_TypeDef RX_STAT_TypeDef; + +PACKED struct TX_DESC_TypeDef { /* TX Descriptor struct */ + unsigned int Packet; + unsigned int Ctrl; +}; +typedef struct TX_DESC_TypeDef TX_DESC_TypeDef; + +PACKED struct TX_STAT_TypeDef { /* TX Status struct */ + unsigned int Info; +}; +typedef struct TX_STAT_TypeDef TX_STAT_TypeDef; + +/* MAC Configuration Register 1 */ +#define MAC1_REC_EN 0x00000001 /* Receive Enable */ +#define MAC1_PASS_ALL 0x00000002 /* Pass All Receive Frames */ +#define MAC1_RX_FLOWC 0x00000004 /* RX Flow Control */ +#define MAC1_TX_FLOWC 0x00000008 /* TX Flow Control */ +#define MAC1_LOOPB 0x00000010 /* Loop Back Mode */ +#define MAC1_RES_TX 0x00000100 /* Reset TX Logic */ +#define MAC1_RES_MCS_TX 0x00000200 /* Reset MAC TX Control Sublayer */ +#define MAC1_RES_RX 0x00000400 /* Reset RX Logic */ +#define MAC1_RES_MCS_RX 0x00000800 /* Reset MAC RX Control Sublayer */ +#define MAC1_SIM_RES 0x00004000 /* Simulation Reset */ +#define MAC1_SOFT_RES 0x00008000 /* Soft Reset MAC */ + +/* MAC Configuration Register 2 */ +#define MAC2_FULL_DUP 0x00000001 /* Full Duplex Mode */ +#define MAC2_FRM_LEN_CHK 0x00000002 /* Frame Length Checking */ +#define MAC2_HUGE_FRM_EN 0x00000004 /* Huge Frame Enable */ +#define MAC2_DLY_CRC 0x00000008 /* Delayed CRC Mode */ +#define MAC2_CRC_EN 0x00000010 /* Append CRC to every Frame */ +#define MAC2_PAD_EN 0x00000020 /* Pad all Short Frames */ +#define MAC2_VLAN_PAD_EN 0x00000040 /* VLAN Pad Enable */ +#define MAC2_ADET_PAD_EN 0x00000080 /* Auto Detect Pad Enable */ +#define MAC2_PPREAM_ENF 0x00000100 /* Pure Preamble Enforcement */ +#define MAC2_LPREAM_ENF 0x00000200 /* Long Preamble Enforcement */ +#define MAC2_NO_BACKOFF 0x00001000 /* No Backoff Algorithm */ +#define MAC2_BACK_PRESSURE 0x00002000 /* Backoff Presurre / No Backoff */ +#define MAC2_EXCESS_DEF 0x00004000 /* Excess Defer */ + +/* Back-to-Back Inter-Packet-Gap Register */ +#define IPGT_FULL_DUP 0x00000015 /* Recommended value for Full Duplex */ +#define IPGT_HALF_DUP 0x00000012 /* Recommended value for Half Duplex */ + +/* Non Back-to-Back Inter-Packet-Gap Register */ +#define IPGR_DEF 0x00000012 /* Recommended value */ + +/* Collision Window/Retry Register */ +#define CLRT_DEF 0x0000370F /* Default value */ + +/* PHY Support Register */ +#define SUPP_SPEED 0x00000100 /* Reduced MII Logic Current Speed */ +//#define SUPP_RES_RMII 0x00000800 /* Reset Reduced MII Logic */ +#define SUPP_RES_RMII 0x00000000 /* Reset Reduced MII Logic */ + +/* Test Register */ +#define TEST_SHCUT_PQUANTA 0x00000001 /* Shortcut Pause Quanta */ +#define TEST_TST_PAUSE 0x00000002 /* Test Pause */ +#define TEST_TST_BACKP 0x00000004 /* Test Back Pressure */ + +/* MII Management Configuration Register */ +#define MCFG_SCAN_INC 0x00000001 /* Scan Increment PHY Address */ +#define MCFG_SUPP_PREAM 0x00000002 /* Suppress Preamble */ +#define MCFG_CLK_SEL 0x0000003C /* Clock Select Mask */ +#define MCFG_RES_MII 0x00008000 /* Reset MII Management Hardware */ + +/* MII Management Command Register */ +#define MCMD_READ 0x00000001 /* MII Read */ +#define MCMD_SCAN 0x00000002 /* MII Scan continuously */ + +#define MII_WR_TOUT 0x00050000 /* MII Write timeout count */ +#define MII_RD_TOUT 0x00050000 /* MII Read timeout count */ + +/* MII Management Address Register */ +#define MADR_REG_ADR 0x0000001F /* MII Register Address Mask */ +#define MADR_PHY_ADR 0x00001F00 /* PHY Address Mask */ + +/* MII Management Indicators Register */ +#define MIND_BUSY 0x00000001 /* MII is Busy */ +#define MIND_SCAN 0x00000002 /* MII Scanning in Progress */ +#define MIND_NOT_VAL 0x00000004 /* MII Read Data not valid */ +#define MIND_MII_LINK_FAIL 0x00000008 /* MII Link Failed */ + +/* Command Register */ +#define CR_RX_EN 0x00000001 /* Enable Receive */ +#define CR_TX_EN 0x00000002 /* Enable Transmit */ +#define CR_REG_RES 0x00000008 /* Reset Host Registers */ +#define CR_TX_RES 0x00000010 /* Reset Transmit Datapath */ +#define CR_RX_RES 0x00000020 /* Reset Receive Datapath */ +#define CR_PASS_RUNT_FRM 0x00000040 /* Pass Runt Frames */ +#define CR_PASS_RX_FILT 0x00000080 /* Pass RX Filter */ +#define CR_TX_FLOW_CTRL 0x00000100 /* TX Flow Control */ +#define CR_RMII 0x00000200 /* Reduced MII Interface */ +#define CR_FULL_DUP 0x00000400 /* Full Duplex */ + +/* Status Register */ +#define SR_RX_EN 0x00000001 /* Enable Receive */ +#define SR_TX_EN 0x00000002 /* Enable Transmit */ + +/* Transmit Status Vector 0 Register */ +#define TSV0_CRC_ERR 0x00000001 /* CRC error */ +#define TSV0_LEN_CHKERR 0x00000002 /* Length Check Error */ +#define TSV0_LEN_OUTRNG 0x00000004 /* Length Out of Range */ +#define TSV0_DONE 0x00000008 /* Tramsmission Completed */ +#define TSV0_MCAST 0x00000010 /* Multicast Destination */ +#define TSV0_BCAST 0x00000020 /* Broadcast Destination */ +#define TSV0_PKT_DEFER 0x00000040 /* Packet Deferred */ +#define TSV0_EXC_DEFER 0x00000080 /* Excessive Packet Deferral */ +#define TSV0_EXC_COLL 0x00000100 /* Excessive Collision */ +#define TSV0_LATE_COLL 0x00000200 /* Late Collision Occured */ +#define TSV0_GIANT 0x00000400 /* Giant Frame */ +#define TSV0_UNDERRUN 0x00000800 /* Buffer Underrun */ +#define TSV0_BYTES 0x0FFFF000 /* Total Bytes Transferred */ +#define TSV0_CTRL_FRAME 0x10000000 /* Control Frame */ +#define TSV0_PAUSE 0x20000000 /* Pause Frame */ +#define TSV0_BACK_PRESS 0x40000000 /* Backpressure Method Applied */ +#define TSV0_VLAN 0x80000000 /* VLAN Frame */ + +/* Transmit Status Vector 1 Register */ +#define TSV1_BYTE_CNT 0x0000FFFF /* Transmit Byte Count */ +#define TSV1_COLL_CNT 0x000F0000 /* Transmit Collision Count */ + +/* Receive Status Vector Register */ +#define RSV_BYTE_CNT 0x0000FFFF /* Receive Byte Count */ +#define RSV_PKT_IGNORED 0x00010000 /* Packet Previously Ignored */ +#define RSV_RXDV_SEEN 0x00020000 /* RXDV Event Previously Seen */ +#define RSV_CARR_SEEN 0x00040000 /* Carrier Event Previously Seen */ +#define RSV_REC_CODEV 0x00080000 /* Receive Code Violation */ +#define RSV_CRC_ERR 0x00100000 /* CRC Error */ +#define RSV_LEN_CHKERR 0x00200000 /* Length Check Error */ +#define RSV_LEN_OUTRNG 0x00400000 /* Length Out of Range */ +#define RSV_REC_OK 0x00800000 /* Frame Received OK */ +#define RSV_MCAST 0x01000000 /* Multicast Frame */ +#define RSV_BCAST 0x02000000 /* Broadcast Frame */ +#define RSV_DRIB_NIBB 0x04000000 /* Dribble Nibble */ +#define RSV_CTRL_FRAME 0x08000000 /* Control Frame */ +#define RSV_PAUSE 0x10000000 /* Pause Frame */ +#define RSV_UNSUPP_OPC 0x20000000 /* Unsupported Opcode */ +#define RSV_VLAN 0x40000000 /* VLAN Frame */ + +/* Flow Control Counter Register */ +#define FCC_MIRR_CNT 0x0000FFFF /* Mirror Counter */ +#define FCC_PAUSE_TIM 0xFFFF0000 /* Pause Timer */ + +/* Flow Control Status Register */ +#define FCS_MIRR_CNT 0x0000FFFF /* Mirror Counter Current */ + +/* Receive Filter Control Register */ +#define RFC_UCAST_EN 0x00000001 /* Accept Unicast Frames Enable */ +#define RFC_BCAST_EN 0x00000002 /* Accept Broadcast Frames Enable */ +#define RFC_MCAST_EN 0x00000004 /* Accept Multicast Frames Enable */ +#define RFC_UCAST_HASH_EN 0x00000008 /* Accept Unicast Hash Filter Frames */ +#define RFC_MCAST_HASH_EN 0x00000010 /* Accept Multicast Hash Filter Fram.*/ +#define RFC_PERFECT_EN 0x00000020 /* Accept Perfect Match Enable */ +#define RFC_MAGP_WOL_EN 0x00001000 /* Magic Packet Filter WoL Enable */ +#define RFC_PFILT_WOL_EN 0x00002000 /* Perfect Filter WoL Enable */ + +/* Receive Filter WoL Status/Clear Registers */ +#define WOL_UCAST 0x00000001 /* Unicast Frame caused WoL */ +#define WOL_BCAST 0x00000002 /* Broadcast Frame caused WoL */ +#define WOL_MCAST 0x00000004 /* Multicast Frame caused WoL */ +#define WOL_UCAST_HASH 0x00000008 /* Unicast Hash Filter Frame WoL */ +#define WOL_MCAST_HASH 0x00000010 /* Multicast Hash Filter Frame WoL */ +#define WOL_PERFECT 0x00000020 /* Perfect Filter WoL */ +#define WOL_RX_FILTER 0x00000080 /* RX Filter caused WoL */ +#define WOL_MAG_PACKET 0x00000100 /* Magic Packet Filter caused WoL */ + +/* Interrupt Status/Enable/Clear/Set Registers */ +#define INT_RX_OVERRUN 0x00000001 /* Overrun Error in RX Queue */ +#define INT_RX_ERR 0x00000002 /* Receive Error */ +#define INT_RX_FIN 0x00000004 /* RX Finished Process Descriptors */ +#define INT_RX_DONE 0x00000008 /* Receive Done */ +#define INT_TX_UNDERRUN 0x00000010 /* Transmit Underrun */ +#define INT_TX_ERR 0x00000020 /* Transmit Error */ +#define INT_TX_FIN 0x00000040 /* TX Finished Process Descriptors */ +#define INT_TX_DONE 0x00000080 /* Transmit Done */ +#define INT_SOFT_INT 0x00001000 /* Software Triggered Interrupt */ +#define INT_WAKEUP 0x00002000 /* Wakeup Event Interrupt */ + +/* Power Down Register */ +#define PD_POWER_DOWN 0x80000000 /* Power Down MAC */ + +/* RX Descriptor Control Word */ +#define RCTRL_SIZE 0x000007FF /* Buffer size mask */ +#define RCTRL_INT 0x80000000 /* Generate RxDone Interrupt */ + +/* RX Status Hash CRC Word */ +#define RHASH_SA 0x000001FF /* Hash CRC for Source Address */ +#define RHASH_DA 0x001FF000 /* Hash CRC for Destination Address */ + +/* RX Status Information Word */ +#define RINFO_SIZE 0x000007FF /* Data size in bytes */ +#define RINFO_CTRL_FRAME 0x00040000 /* Control Frame */ +#define RINFO_VLAN 0x00080000 /* VLAN Frame */ +#define RINFO_FAIL_FILT 0x00100000 /* RX Filter Failed */ +#define RINFO_MCAST 0x00200000 /* Multicast Frame */ +#define RINFO_BCAST 0x00400000 /* Broadcast Frame */ +#define RINFO_CRC_ERR 0x00800000 /* CRC Error in Frame */ +#define RINFO_SYM_ERR 0x01000000 /* Symbol Error from PHY */ +#define RINFO_LEN_ERR 0x02000000 /* Length Error */ +#define RINFO_RANGE_ERR 0x04000000 /* Range Error (exceeded max. size) */ +#define RINFO_ALIGN_ERR 0x08000000 /* Alignment Error */ +#define RINFO_OVERRUN 0x10000000 /* Receive overrun */ +#define RINFO_NO_DESCR 0x20000000 /* No new Descriptor available */ +#define RINFO_LAST_FLAG 0x40000000 /* Last Fragment in Frame */ +#define RINFO_ERR 0x80000000 /* Error Occured (OR of all errors) */ + +//#define RINFO_ERR_MASK (RINFO_FAIL_FILT | RINFO_CRC_ERR | RINFO_SYM_ERR | RINFO_LEN_ERR | RINFO_ALIGN_ERR | RINFO_OVERRUN) +#define RINFO_ERR_MASK (RINFO_FAIL_FILT | RINFO_SYM_ERR | \ + RINFO_LEN_ERR | RINFO_ALIGN_ERR | RINFO_OVERRUN) + + +/* TX Descriptor Control Word */ +#define TCTRL_SIZE 0x000007FF /* Size of data buffer in bytes */ +#define TCTRL_OVERRIDE 0x04000000 /* Override Default MAC Registers */ +#define TCTRL_HUGE 0x08000000 /* Enable Huge Frame */ +#define TCTRL_PAD 0x10000000 /* Pad short Frames to 64 bytes */ +#define TCTRL_CRC 0x20000000 /* Append a hardware CRC to Frame */ +#define TCTRL_LAST 0x40000000 /* Last Descriptor for TX Frame */ +#define TCTRL_INT 0x80000000 /* Generate TxDone Interrupt */ + +/* TX Status Information Word */ +#define TINFO_COL_CNT 0x01E00000 /* Collision Count */ +#define TINFO_DEFER 0x02000000 /* Packet Deferred (not an error) */ +#define TINFO_EXCESS_DEF 0x04000000 /* Excessive Deferral */ +#define TINFO_EXCESS_COL 0x08000000 /* Excessive Collision */ +#define TINFO_LATE_COL 0x10000000 /* Late Collision Occured */ +#define TINFO_UNDERRUN 0x20000000 /* Transmit Underrun */ +#define TINFO_NO_DESCR 0x40000000 /* No new Descriptor available */ +#define TINFO_ERR 0x80000000 /* Error Occured (OR of all errors) */ + +/* ENET Device Revision ID */ +#define OLD_EMAC_MODULE_ID 0x39022000 /* Rev. ID for first rev '-' */ + +/* DP83848C PHY Registers */ +#define PHY_REG_BMCR 0x00 /* Basic Mode Control Register */ +#define PHY_REG_BMSR 0x01 /* Basic Mode Status Register */ +#define PHY_REG_IDR1 0x02 /* PHY Identifier 1 */ +#define PHY_REG_IDR2 0x03 /* PHY Identifier 2 */ +#define PHY_REG_ANAR 0x04 /* Auto-Negotiation Advertisement */ +#define PHY_REG_ANLPAR 0x05 /* Auto-Neg. Link Partner Abitily */ +#define PHY_REG_ANER 0x06 /* Auto-Neg. Expansion Register */ +#define PHY_REG_ANNPTR 0x07 /* Auto-Neg. Next Page TX */ + +/* PHY Extended Registers */ +#define PHY_REG_STS 0x10 /* Status Register */ +#define PHY_REG_MICR 0x11 /* MII Interrupt Control Register */ +#define PHY_REG_MISR 0x12 /* MII Interrupt Status Register */ +#define PHY_REG_FCSCR 0x14 /* False Carrier Sense Counter */ +#define PHY_REG_RECR 0x15 /* Receive Error Counter */ +#define PHY_REG_PCSR 0x16 /* PCS Sublayer Config. and Status */ +#define PHY_REG_RBR 0x17 /* RMII and Bypass Register */ +#define PHY_REG_LEDCR 0x18 /* LED Direct Control Register */ +#define PHY_REG_PHYCR 0x19 /* PHY Control Register */ +#define PHY_REG_10BTSCR 0x1A /* 10Base-T Status/Control Register */ +#define PHY_REG_CDCTRL1 0x1B /* CD Test Control and BIST Extens. */ +#define PHY_REG_EDCR 0x1D /* Energy Detect Control Register */ + +#define PHY_REG_SCSR 0x1F /* PHY Special Control/Status Register */ + +#define PHY_FULLD_100M 0x2100 /* Full Duplex 100Mbit */ +#define PHY_HALFD_100M 0x2000 /* Half Duplex 100Mbit */ +#define PHY_FULLD_10M 0x0100 /* Full Duplex 10Mbit */ +#define PHY_HALFD_10M 0x0000 /* Half Duplex 10MBit */ +#define PHY_AUTO_NEG 0x3000 /* Select Auto Negotiation */ + +#define DP83848C_DEF_ADR 0x0100 /* Default PHY device address */ +#define DP83848C_ID 0x20005C90 /* PHY Identifier - DP83848C */ + +#define LAN8720_ID 0x0007C0F0 /* PHY Identifier - LAN8720 */ + +#define PHY_STS_LINK 0x0001 /* PHY Status Link Mask */ +#define PHY_STS_SPEED 0x0002 /* PHY Status Speed Mask */ +#define PHY_STS_DUPLEX 0x0004 /* PHY Status Duplex Mask */ + +#define PHY_BMCR_RESET 0x8000 /* PHY Reset */ + +#define PHY_BMSR_LINK 0x0004 /* PHY BMSR Link valid */ + +#define PHY_SCSR_100MBIT 0x0008 /* Speed: 1=100 MBit, 0=10Mbit */ +#define PHY_SCSR_DUPLEX 0x0010 /* PHY Duplex Mask */ + + +static int phy_read(unsigned int PhyReg); +static int phy_write(unsigned int PhyReg, unsigned short Data); + +static void txdscr_init(void); +static void rxdscr_init(void); + +#if defined (__ICCARM__) +# define AHBSRAM1 +#elif defined(TOOLCHAIN_GCC_CR) +# define AHBSRAM1 __attribute__((section(".data.$RamPeriph32"))) +#else +# define AHBSRAM1 __attribute__((section("AHBSRAM1"),aligned)) +#endif + +AHBSRAM1 volatile uint8_t rxbuf[NUM_RX_FRAG][ETH_FRAG_SIZE]; +AHBSRAM1 volatile uint8_t txbuf[NUM_TX_FRAG][ETH_FRAG_SIZE]; +AHBSRAM1 volatile RX_DESC_TypeDef rxdesc[NUM_RX_FRAG]; +AHBSRAM1 volatile RX_STAT_TypeDef rxstat[NUM_RX_FRAG]; +AHBSRAM1 volatile TX_DESC_TypeDef txdesc[NUM_TX_FRAG]; +AHBSRAM1 volatile TX_STAT_TypeDef txstat[NUM_TX_FRAG]; + + +#if NEW_LOGIC +static int rx_consume_offset = -1; +static int tx_produce_offset = -1; +#else +static int send_doff = 0; +static int send_idx = -1; +static int send_size = 0; + +static int receive_soff = 0; +static int receive_idx = -1; +#endif + +static uint32_t phy_id = 0; + +static inline int rinc(int idx, int mod) { + ++idx; + idx %= mod; + return idx; +} + +//extern unsigned int SystemFrequency; +static inline unsigned int clockselect() { + if(SystemCoreClock < 10000000) { + return 1; + } else if(SystemCoreClock < 15000000) { + return 2; + } else if(SystemCoreClock < 20000000) { + return 3; + } else if(SystemCoreClock < 25000000) { + return 4; + } else if(SystemCoreClock < 35000000) { + return 5; + } else if(SystemCoreClock < 50000000) { + return 6; + } else if(SystemCoreClock < 70000000) { + return 7; + } else if(SystemCoreClock < 80000000) { + return 8; + } else if(SystemCoreClock < 90000000) { + return 9; + } else if(SystemCoreClock < 100000000) { + return 10; + } else if(SystemCoreClock < 120000000) { + return 11; + } else if(SystemCoreClock < 130000000) { + return 12; + } else if(SystemCoreClock < 140000000) { + return 13; + } else if(SystemCoreClock < 150000000) { + return 15; + } else if(SystemCoreClock < 160000000) { + return 16; + } else { + return 0; + } +} + +#ifndef min +#define min(x, y) (((x)<(y))?(x):(y)) +#endif + +/*---------------------------------------------------------------------------- + Ethernet Device initialize + *----------------------------------------------------------------------------*/ +int ethernet_init() { + int regv, tout; + char mac[ETHERNET_ADDR_SIZE]; + unsigned int clock = clockselect(); + + LPC_SC->PCONP |= 0x40000000; /* Power Up the EMAC controller. */ + + LPC_PINCON->PINSEL2 = 0x50150105; /* Enable P1 Ethernet Pins. */ + LPC_PINCON->PINSEL3 = (LPC_PINCON->PINSEL3 & ~0x0000000F) | 0x00000005; + + /* Reset all EMAC internal modules. */ + LPC_EMAC->MAC1 = MAC1_RES_TX | MAC1_RES_MCS_TX | MAC1_RES_RX | + MAC1_RES_MCS_RX | MAC1_SIM_RES | MAC1_SOFT_RES; + LPC_EMAC->Command = CR_REG_RES | CR_TX_RES | CR_RX_RES | CR_PASS_RUNT_FRM; + + for(tout = 100; tout; tout--) __NOP(); /* A short delay after reset. */ + + LPC_EMAC->MAC1 = MAC1_PASS_ALL; /* Initialize MAC control registers. */ + LPC_EMAC->MAC2 = MAC2_CRC_EN | MAC2_PAD_EN; + LPC_EMAC->MAXF = ETH_MAX_FLEN; + LPC_EMAC->CLRT = CLRT_DEF; + LPC_EMAC->IPGR = IPGR_DEF; + + LPC_EMAC->Command = CR_RMII | CR_PASS_RUNT_FRM; /* Enable Reduced MII interface. */ + + LPC_EMAC->MCFG = (clock << 0x2) & MCFG_CLK_SEL; /* Set clock */ + LPC_EMAC->MCFG |= MCFG_RES_MII; /* and reset */ + + for(tout = 100; tout; tout--) __NOP(); /* A short delay */ + + LPC_EMAC->MCFG = (clock << 0x2) & MCFG_CLK_SEL; + LPC_EMAC->MCMD = 0; + + LPC_EMAC->SUPP = SUPP_RES_RMII; /* Reset Reduced MII Logic. */ + + for (tout = 100; tout; tout--) __NOP(); /* A short delay */ + + LPC_EMAC->SUPP = 0; + + phy_write(PHY_REG_BMCR, PHY_BMCR_RESET); /* perform PHY reset */ + for(tout = 0x20000; ; tout--) { /* Wait for hardware reset to end. */ + regv = phy_read(PHY_REG_BMCR); + if(regv < 0 || tout == 0) { + return -1; /* Error */ + } + if(!(regv & PHY_BMCR_RESET)) { + break; /* Reset complete. */ + } + } + + phy_id = (phy_read(PHY_REG_IDR1) << 16); + phy_id |= (phy_read(PHY_REG_IDR2) & 0XFFF0); + + if (phy_id != DP83848C_ID && phy_id != LAN8720_ID) { + error("Unknown Ethernet PHY (%x)", (unsigned int)phy_id); + } + + ethernet_set_link(-1, 0); + + /* Set the Ethernet MAC Address registers */ + ethernet_address(mac); + LPC_EMAC->SA0 = ((uint32_t)mac[5] << 8) | (uint32_t)mac[4]; + LPC_EMAC->SA1 = ((uint32_t)mac[3] << 8) | (uint32_t)mac[2]; + LPC_EMAC->SA2 = ((uint32_t)mac[1] << 8) | (uint32_t)mac[0]; + + txdscr_init(); /* initialize DMA TX Descriptor */ + rxdscr_init(); /* initialize DMA RX Descriptor */ + + LPC_EMAC->RxFilterCtrl = RFC_UCAST_EN | RFC_MCAST_EN | RFC_BCAST_EN | RFC_PERFECT_EN; + /* Receive Broadcast, Perfect Match Packets */ + + LPC_EMAC->IntEnable = INT_RX_DONE | INT_TX_DONE; /* Enable EMAC interrupts. */ + LPC_EMAC->IntClear = 0xFFFF; /* Reset all interrupts */ + + + LPC_EMAC->Command |= (CR_RX_EN | CR_TX_EN); /* Enable receive and transmit mode of MAC Ethernet core */ + LPC_EMAC->MAC1 |= MAC1_REC_EN; + +#if NEW_LOGIC + rx_consume_offset = -1; + tx_produce_offset = -1; +#else + send_doff = 0; + send_idx = -1; + send_size = 0; + + receive_soff = 0; + receive_idx = -1; +#endif + + return 0; +} + +/*---------------------------------------------------------------------------- + Ethernet Device Uninitialize + *----------------------------------------------------------------------------*/ +void ethernet_free() { + LPC_EMAC->IntEnable &= ~(INT_RX_DONE | INT_TX_DONE); + LPC_EMAC->IntClear = 0xFFFF; + + LPC_SC->PCONP &= ~0x40000000; /* Power down the EMAC controller. */ + + LPC_PINCON->PINSEL2 &= ~0x50150105; /* Disable P1 ethernet pins. */ + LPC_PINCON->PINSEL3 = (LPC_PINCON->PINSEL3 & ~0x0000000F) | 0x00000000; +} + +// if(TxProduceIndex == TxConsumeIndex) buffer array is empty +// if(TxProduceIndex == TxConsumeIndex - 1) buffer is full, should not fill +// TxProduceIndex - The buffer that will/is being fileld by driver, s/w increment +// TxConsumeIndex - The buffer that will/is beign sent by hardware + +int ethernet_write(const char *data, int slen) { + +#if NEW_LOGIC + + if(tx_produce_offset < 0) { // mark as active if not already + tx_produce_offset = 0; + } + + int index = LPC_EMAC->TxProduceIndex; + + int remaining = ETH_MAX_FLEN - tx_produce_offset - 4; // bytes written plus checksum + int requested = slen; + int ncopy = min(remaining, requested); + + void *pdst = (void *)(txdesc[index].Packet + tx_produce_offset); + void *psrc = (void *)(data); + + if(ncopy > 0 ){ + if(data != NULL) { + memcpy(pdst, psrc, ncopy); + } else { + memset(pdst, 0, ncopy); + } + } + + tx_produce_offset += ncopy; + + return ncopy; + +#else + void *pdst, *psrc; + const int dlen = ETH_FRAG_SIZE; + int copy = 0; + int soff = 0; + + if(send_idx == -1) { + send_idx = LPC_EMAC->TxProduceIndex; + } + + if(slen + send_doff > ethernet_MTU_SIZE) { + return -1; + } + + do { + copy = min(slen - soff, dlen - send_doff); + pdst = (void *)(txdesc[send_idx].Packet + send_doff); + psrc = (void *)(data + soff); + if(send_doff + copy > ETH_FRAG_SIZE) { + txdesc[send_idx].Ctrl = (send_doff-1) | (TCTRL_INT); + send_idx = rinc(send_idx, NUM_TX_FRAG); + send_doff = 0; + } + + if(data != NULL) { + memcpy(pdst, psrc, copy); + } else { + memset(pdst, 0, copy); + } + + soff += copy; + send_doff += copy; + send_size += copy; + } while(soff != slen); + + return soff; +#endif +} + +int ethernet_send() { + +#if NEW_LOGIC + if(tx_produce_offset < 0) { // no buffer active + return -1; + } + + // ensure there is a link + if(!ethernet_link()) { + return -2; + } + + // we have been writing in to a buffer, so finalise it + int size = tx_produce_offset; + int index = LPC_EMAC->TxProduceIndex; + txdesc[index].Ctrl = (tx_produce_offset-1) | (TCTRL_INT | TCTRL_LAST); + + // Increment ProduceIndex to allow it to be sent + // We can only do this if the next slot is free + int next = rinc(index, NUM_TX_FRAG); + while(next == LPC_EMAC->TxConsumeIndex) { + for(int i=0; i<1000; i++) { __NOP(); } + } + + LPC_EMAC->TxProduceIndex = next; + tx_produce_offset = -1; + return size; + +#else + int s = send_size; + txdesc[send_idx].Ctrl = (send_doff-1) | (TCTRL_INT | TCTRL_LAST); + send_idx = rinc(send_idx, NUM_TX_FRAG); + LPC_EMAC->TxProduceIndex = send_idx; + send_doff = 0; + send_idx = -1; + send_size = 0; + return s; +#endif +} + +// RxConsmeIndex - The index of buffer the driver will/is reading from. Driver should inc once read +// RxProduceIndex - The index of buffer that will/is being filled by MAC. H/w will inc once rxd +// +// if(RxConsumeIndex == RxProduceIndex) buffer array is empty +// if(RxConsumeIndex == RxProduceIndex + 1) buffer array is full + +// Recevies an arrived ethernet packet. +// Receiving an ethernet packet will drop the last received ethernet packet +// and make a new ethernet packet ready to read. +// Returns size of packet, else 0 if nothing to receive + +// We read from RxConsumeIndex from position rx_consume_offset +// if rx_consume_offset < 0, then we have not recieved the RxConsumeIndex packet for reading +// rx_consume_offset = -1 // no frame +// rx_consume_offset = 0 // start of frame +// Assumption: A fragment should alway be a whole frame + +int ethernet_receive() { +#if NEW_LOGIC + + // if we are currently reading a valid RxConsume buffer, increment to the next one + if(rx_consume_offset >= 0) { + LPC_EMAC->RxConsumeIndex = rinc(LPC_EMAC->RxConsumeIndex, NUM_RX_FRAG); + } + + // if the buffer is empty, mark it as no valid buffer + if(LPC_EMAC->RxConsumeIndex == LPC_EMAC->RxProduceIndex) { + rx_consume_offset = -1; + return 0; + } + + uint32_t info = rxstat[LPC_EMAC->RxConsumeIndex].Info; + rx_consume_offset = 0; + + // check if it is not marked as last or for errors + if(!(info & RINFO_LAST_FLAG) || (info & RINFO_ERR_MASK)) { + return -1; + } + + int size = (info & RINFO_SIZE) + 1; + return size - 4; // don't include checksum bytes + +#else + if(receive_idx == -1) { + receive_idx = LPC_EMAC->RxConsumeIndex; + } else { + while(!(rxstat[receive_idx].Info & RINFO_LAST_FLAG) && ((uint32_t)receive_idx != LPC_EMAC->RxProduceIndex)) { + receive_idx = rinc(receive_idx, NUM_RX_FRAG); + } + unsigned int info = rxstat[receive_idx].Info; + int slen = (info & RINFO_SIZE) + 1; + + if(slen > ethernet_MTU_SIZE || (info & RINFO_ERR_MASK)) { + /* Invalid frame, ignore it and free buffer. */ + receive_idx = rinc(receive_idx, NUM_RX_FRAG); + } + receive_idx = rinc(receive_idx, NUM_RX_FRAG); + receive_soff = 0; + + LPC_EMAC->RxConsumeIndex = receive_idx; + } + + if((uint32_t)receive_idx == LPC_EMAC->RxProduceIndex) { + receive_idx = -1; + return 0; + } + + return (rxstat[receive_idx].Info & RINFO_SIZE) - 3; +#endif +} + +// Read from an recevied ethernet packet. +// After receive returnd a number bigger than 0 it is +// possible to read bytes from this packet. +// Read will write up to size bytes into data. +// It is possible to use read multible times. +// Each time read will start reading after the last read byte before. + +int ethernet_read(char *data, int dlen) { +#if NEW_LOGIC + // Check we have a valid buffer to read + if(rx_consume_offset < 0) { + return 0; + } + + // Assume 1 fragment block + uint32_t info = rxstat[LPC_EMAC->RxConsumeIndex].Info; + int size = (info & RINFO_SIZE) + 1 - 4; // exclude checksum + + int remaining = size - rx_consume_offset; + int requested = dlen; + int ncopy = min(remaining, requested); + + void *psrc = (void *)(rxdesc[LPC_EMAC->RxConsumeIndex].Packet + rx_consume_offset); + void *pdst = (void *)(data); + + if(data != NULL && ncopy > 0) { + memcpy(pdst, psrc, ncopy); + } + + rx_consume_offset += ncopy; + + return ncopy; +#else + int slen; + int copy = 0; + unsigned int more; + unsigned int info; + void *pdst, *psrc; + int doff = 0; + + if((uint32_t)receive_idx == LPC_EMAC->RxProduceIndex || receive_idx == -1) { + return 0; + } + + do { + info = rxstat[receive_idx].Info; + more = !(info & RINFO_LAST_FLAG); + slen = (info & RINFO_SIZE) + 1; + + if(slen > ethernet_MTU_SIZE || (info & RINFO_ERR_MASK)) { + /* Invalid frame, ignore it and free buffer. */ + receive_idx = rinc(receive_idx, NUM_RX_FRAG); + } else { + + copy = min(slen - receive_soff, dlen - doff); + psrc = (void *)(rxdesc[receive_idx].Packet + receive_soff); + pdst = (void *)(data + doff); + + if(data != NULL) { + /* check if Buffer available */ + memcpy(pdst, psrc, copy); + } + + receive_soff += copy; + doff += copy; + + if((more && (receive_soff == slen))) { + receive_idx = rinc(receive_idx, NUM_RX_FRAG); + receive_soff = 0; + } + } + } while(more && !(doff == dlen) && !receive_soff); + + return doff; +#endif +} + +int ethernet_link(void) { + if (phy_id == DP83848C_ID) { + return (phy_read(PHY_REG_STS) & PHY_STS_LINK); + } + else { // LAN8720_ID + return (phy_read(PHY_REG_BMSR) & PHY_BMSR_LINK); + } +} + +static int phy_write(unsigned int PhyReg, unsigned short Data) { + unsigned int timeOut; + + LPC_EMAC->MADR = DP83848C_DEF_ADR | PhyReg; + LPC_EMAC->MWTD = Data; + + for(timeOut = 0; timeOut < MII_WR_TOUT; timeOut++) { /* Wait until operation completed */ + if((LPC_EMAC->MIND & MIND_BUSY) == 0) { + return 0; + } + } + + return -1; +} + +static int phy_read(unsigned int PhyReg) { + unsigned int timeOut; + + LPC_EMAC->MADR = DP83848C_DEF_ADR | PhyReg; + LPC_EMAC->MCMD = MCMD_READ; + + for(timeOut = 0; timeOut < MII_RD_TOUT; timeOut++) { /* Wait until operation completed */ + if((LPC_EMAC->MIND & MIND_BUSY) == 0) { + LPC_EMAC->MCMD = 0; + return LPC_EMAC->MRDD; /* Return a 16-bit value. */ + } + } + + return -1; +} + + +static void txdscr_init() { + int i; + + for(i = 0; i < NUM_TX_FRAG; i++) { + txdesc[i].Packet = (uint32_t)&txbuf[i]; + txdesc[i].Ctrl = 0; + txstat[i].Info = 0; + } + + LPC_EMAC->TxDescriptor = (uint32_t)txdesc; /* Set EMAC Transmit Descriptor Registers. */ + LPC_EMAC->TxStatus = (uint32_t)txstat; + LPC_EMAC->TxDescriptorNumber = NUM_TX_FRAG-1; + + LPC_EMAC->TxProduceIndex = 0; /* Tx Descriptors Point to 0 */ +} + +static void rxdscr_init() { + int i; + + for(i = 0; i < NUM_RX_FRAG; i++) { + rxdesc[i].Packet = (uint32_t)&rxbuf[i]; + rxdesc[i].Ctrl = RCTRL_INT | (ETH_FRAG_SIZE-1); + rxstat[i].Info = 0; + rxstat[i].HashCRC = 0; + } + + LPC_EMAC->RxDescriptor = (uint32_t)rxdesc; /* Set EMAC Receive Descriptor Registers. */ + LPC_EMAC->RxStatus = (uint32_t)rxstat; + LPC_EMAC->RxDescriptorNumber = NUM_RX_FRAG-1; + + LPC_EMAC->RxConsumeIndex = 0; /* Rx Descriptors Point to 0 */ +} + +void ethernet_address(char *mac) { + mbed_mac_address(mac); +} + +void ethernet_set_link(int speed, int duplex) { + unsigned short phy_data; + int tout; + + if((speed < 0) || (speed > 1)) { + phy_data = PHY_AUTO_NEG; + } else { + phy_data = (((unsigned short) speed << 13) | + ((unsigned short) duplex << 8)); + } + + phy_write(PHY_REG_BMCR, phy_data); + + for(tout = 100; tout; tout--) { __NOP(); } /* A short delay */ + + switch(phy_id) { + case DP83848C_ID: + phy_data = phy_read(PHY_REG_STS); + + if(phy_data & PHY_STS_DUPLEX) { + LPC_EMAC->MAC2 |= MAC2_FULL_DUP; + LPC_EMAC->Command |= CR_FULL_DUP; + LPC_EMAC->IPGT = IPGT_FULL_DUP; + } else { + LPC_EMAC->MAC2 &= ~MAC2_FULL_DUP; + LPC_EMAC->Command &= ~CR_FULL_DUP; + LPC_EMAC->IPGT = IPGT_HALF_DUP; + } + + if(phy_data & PHY_STS_SPEED) { + LPC_EMAC->SUPP &= ~SUPP_SPEED; + } else { + LPC_EMAC->SUPP |= SUPP_SPEED; + } + break; + + case LAN8720_ID: + phy_data = phy_read(PHY_REG_SCSR); + + if (phy_data & PHY_SCSR_DUPLEX) { + LPC_EMAC->MAC2 |= MAC2_FULL_DUP; + LPC_EMAC->Command |= CR_FULL_DUP; + LPC_EMAC->IPGT = IPGT_FULL_DUP; + } else { + LPC_EMAC->Command &= ~CR_FULL_DUP; + LPC_EMAC->IPGT = IPGT_HALF_DUP; + } + + if(phy_data & PHY_SCSR_100MBIT) { + LPC_EMAC->SUPP |= SUPP_SPEED; + } else { + LPC_EMAC->SUPP &= ~SUPP_SPEED; + } + break; + } +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/gpio_api.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,57 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "mbed_assert.h" +#include "gpio_api.h" +#include "pinmap.h" + +uint32_t gpio_set(PinName pin) { + LPC_SC->SCS |= 1; // High speed GPIO is enabled on ports 0 and 1 + + pin_function(pin, 0); + + return (1 << ((int)pin & 0x1F)); +} + +void gpio_init(gpio_t *obj, PinName pin) { + if (pin == (PinName)NC) + return; + obj->pin = pin; + if (pin == (PinName)NC) + return; + + obj->mask = gpio_set(pin); + + LPC_GPIO_TypeDef *port_reg = (LPC_GPIO_TypeDef *) ((int)pin & ~0x1F); + + obj->reg_set = &port_reg->FIOSET; + obj->reg_mask = &port_reg->FIOMASK; + obj->reg_clr = &port_reg->FIOCLR; + obj->reg_in = &port_reg->FIOPIN; + obj->reg_dir = &port_reg->FIODIR; +} + +void gpio_mode(gpio_t *obj, PinMode mode) { + pin_mode(obj->pin, mode); +} + +void gpio_dir(gpio_t *obj, PinDirection direction) { + if (obj->pin == (PinName)NC) + return; + switch (direction) { + case PIN_INPUT : *obj->reg_dir &= ~obj->mask; break; + case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break; + } +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/gpio_irq_api.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,154 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "gpio_irq_api.h" +#include "mbed_error.h" +#include <stddef.h> +#include "cmsis.h" + +#define CHANNEL_NUM 48 + +static uint32_t channel_ids[CHANNEL_NUM] = {0}; +static gpio_irq_handler irq_handler; + +static void handle_interrupt_in(void) { + // Read in all current interrupt registers. We do this once as the + // GPIO interrupt registers are on the APB bus, and this is slow. + uint32_t rise0 = LPC_GPIOINT->IO0IntStatR; + uint32_t fall0 = LPC_GPIOINT->IO0IntStatF; + uint32_t rise2 = LPC_GPIOINT->IO2IntStatR; + uint32_t fall2 = LPC_GPIOINT->IO2IntStatF; + uint32_t mask0 = 0; + uint32_t mask2 = 0; + int i; + + // P0.0-0.31 + for (i = 0; i < 32; i++) { + uint32_t pmask = (1 << i); + if (rise0 & pmask) { + mask0 |= pmask; + if (channel_ids[i] != 0) + irq_handler(channel_ids[i], IRQ_RISE); + } + if (fall0 & pmask) { + mask0 |= pmask; + if (channel_ids[i] != 0) + irq_handler(channel_ids[i], IRQ_FALL); + } + } + + // P2.0-2.15 + for (i = 0; i < 16; i++) { + uint32_t pmask = (1 << i); + int channel_index = i + 32; + if (rise2 & pmask) { + mask2 |= pmask; + if (channel_ids[channel_index] != 0) + irq_handler(channel_ids[channel_index], IRQ_RISE); + } + if (fall2 & pmask) { + mask2 |= pmask; + if (channel_ids[channel_index] != 0) + irq_handler(channel_ids[channel_index], IRQ_FALL); + } + } + + // Clear the interrupts we just handled + LPC_GPIOINT->IO0IntClr = mask0; + LPC_GPIOINT->IO2IntClr = mask2; +} + +int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32_t id) { + if (pin == NC) return -1; + + irq_handler = handler; + + obj->port = (int)pin & ~0x1F; + obj->pin = (int)pin & 0x1F; + + // Interrupts available only on GPIO0 and GPIO2 + if (obj->port != LPC_GPIO0_BASE && obj->port != LPC_GPIO2_BASE) { + error("pins on this port cannot generate interrupts"); + } + + // put us in the interrupt table + int index = (obj->port == LPC_GPIO0_BASE) ? obj->pin : obj->pin + 32; + channel_ids[index] = id; + obj->ch = index; + + NVIC_SetVector(EINT3_IRQn, (uint32_t)handle_interrupt_in); + NVIC_EnableIRQ(EINT3_IRQn); + + return 0; +} + +void gpio_irq_free(gpio_irq_t *obj) { + channel_ids[obj->ch] = 0; +} + +void gpio_irq_set(gpio_irq_t *obj, gpio_irq_event event, uint32_t enable) { + // ensure nothing is pending + switch (obj->port) { + case LPC_GPIO0_BASE: LPC_GPIOINT->IO0IntClr = 1 << obj->pin; break; + case LPC_GPIO2_BASE: LPC_GPIOINT->IO2IntClr = 1 << obj->pin; break; + } + + // enable the pin interrupt + if (event == IRQ_RISE) { + switch (obj->port) { + case LPC_GPIO0_BASE: + if (enable) { + LPC_GPIOINT->IO0IntEnR |= 1 << obj->pin; + } else { + LPC_GPIOINT->IO0IntEnR &= ~(1 << obj->pin); + } + break; + case LPC_GPIO2_BASE: + if (enable) { + LPC_GPIOINT->IO2IntEnR |= 1 << obj->pin; + } else { + LPC_GPIOINT->IO2IntEnR &= ~(1 << obj->pin); + } + break; + } + } else { + switch (obj->port) { + case LPC_GPIO0_BASE: + if (enable) { + LPC_GPIOINT->IO0IntEnF |= 1 << obj->pin; + } else { + LPC_GPIOINT->IO0IntEnF &= ~(1 << obj->pin); + } + break; + + case LPC_GPIO2_BASE: + if (enable) { + LPC_GPIOINT->IO2IntEnF |= 1 << obj->pin; + } else { + LPC_GPIOINT->IO2IntEnF &= ~(1 << obj->pin); + } + break; + } + } +} + +void gpio_irq_enable(gpio_irq_t *obj) { + NVIC_EnableIRQ(EINT3_IRQn); +} + +void gpio_irq_disable(gpio_irq_t *obj) { + NVIC_DisableIRQ(EINT3_IRQn); +} +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/gpio_object.h Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,59 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef MBED_GPIO_OBJECT_H +#define MBED_GPIO_OBJECT_H + +#include "mbed_assert.h" + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct { + PinName pin; + uint32_t mask; + + __IO uint32_t *reg_dir; + __IO uint32_t *reg_mask; + __IO uint32_t *reg_set; + __IO uint32_t *reg_clr; + __I uint32_t *reg_in; +} gpio_t; + +static inline void gpio_write(gpio_t *obj, int value) { + MBED_ASSERT(obj->pin != (PinName)NC); + *obj->reg_mask &= ~obj->mask; + if (value) + *obj->reg_set = obj->mask; + else + *obj->reg_clr = obj->mask; +} + +static inline int gpio_read(gpio_t *obj) { + MBED_ASSERT(obj->pin != (PinName)NC); + *obj->reg_mask &= ~obj->mask; + return ((*obj->reg_in & obj->mask) ? 1 : 0); +} + +static inline int gpio_is_connected(const gpio_t *obj) { + return obj->pin != (PinName)NC; +} + +#ifdef __cplusplus +} +#endif + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/i2c_api.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,399 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "i2c_api.h" +#include "cmsis.h" +#include "pinmap.h" + +static const PinMap PinMap_I2C_SDA[] = { + {P0_0 , I2C_1, 3}, + {P0_10, I2C_2, 2}, + {P0_19, I2C_1, 3}, + {P0_27, I2C_0, 1}, + {P2_14, I2C_1, 3}, + {P2_30, I2C_2, 3}, + {P4_20, I2C_2, 2}, + {NC , NC , 0} +}; + +static const PinMap PinMap_I2C_SCL[] = { + {P0_1 , I2C_1, 3}, + {P0_11, I2C_2, 2}, + {P0_20, I2C_1, 3}, + {P0_28, I2C_0, 1}, + {P2_15, I2C_1, 3}, + {P2_31, I2C_2, 3}, + {P4_21, I2C_2, 2}, + {NC , NC, 0} +}; + +#define I2C_CONSET(x) (x->i2c->I2CONSET) +#define I2C_CONCLR(x) (x->i2c->I2CONCLR) +#define I2C_STAT(x) (x->i2c->I2STAT) +#define I2C_DAT(x) (x->i2c->I2DAT) +#define I2C_SCLL(x, val) (x->i2c->I2SCLL = val) +#define I2C_SCLH(x, val) (x->i2c->I2SCLH = val) + +static const uint32_t I2C_addr_offset[2][4] = { + {0x0C, 0x20, 0x24, 0x28}, + {0x30, 0x34, 0x38, 0x3C} +}; + +static inline void i2c_conclr(i2c_t *obj, int start, int stop, int interrupt, int acknowledge) { + I2C_CONCLR(obj) = (start << 5) + | (stop << 4) + | (interrupt << 3) + | (acknowledge << 2); +} + +static inline void i2c_conset(i2c_t *obj, int start, int stop, int interrupt, int acknowledge) { + I2C_CONSET(obj) = (start << 5) + | (stop << 4) + | (interrupt << 3) + | (acknowledge << 2); +} + +// Clear the Serial Interrupt (SI) +static inline void i2c_clear_SI(i2c_t *obj) { + i2c_conclr(obj, 0, 0, 1, 0); +} + +static inline int i2c_status(i2c_t *obj) { + return I2C_STAT(obj); +} + +// Wait until the Serial Interrupt (SI) is set +static int i2c_wait_SI(i2c_t *obj) { + int timeout = 0; + while (!(I2C_CONSET(obj) & (1 << 3))) { + timeout++; + if (timeout > 100000) return -1; + } + return 0; +} + +static inline void i2c_interface_enable(i2c_t *obj) { + I2C_CONSET(obj) = 0x40; +} + +static inline void i2c_power_enable(i2c_t *obj) { + switch ((int)obj->i2c) { + case I2C_0: LPC_SC->PCONP |= 1 << PCI2C0; break; + case I2C_1: LPC_SC->PCONP |= 1 << PCI2C1; break; + case I2C_2: LPC_SC->PCONP |= 1 << PCI2C2; break; + } +} + +void i2c_init(i2c_t *obj, PinName sda, PinName scl) { + // determine the SPI to use + I2CName i2c_sda = (I2CName)pinmap_peripheral(sda, PinMap_I2C_SDA); + I2CName i2c_scl = (I2CName)pinmap_peripheral(scl, PinMap_I2C_SCL); + obj->i2c = (LPC_I2C_TypeDef *)pinmap_merge(i2c_sda, i2c_scl); + MBED_ASSERT((int)obj->i2c != NC); + + // enable power + i2c_power_enable(obj); + + // set default frequency at 100k + i2c_frequency(obj, 100000); + i2c_conclr(obj, 1, 1, 1, 1); + i2c_interface_enable(obj); + + pinmap_pinout(sda, PinMap_I2C_SDA); + pinmap_pinout(scl, PinMap_I2C_SCL); +} + +inline int i2c_start(i2c_t *obj) { + int status = 0; + // 8.1 Before master mode can be entered, I2CON must be initialised to: + // - I2EN STA STO SI AA - - + // - 1 0 0 0 x - - + // if AA = 0, it can't enter slave mode + i2c_conclr(obj, 1, 1, 1, 1); + + // The master mode may now be entered by setting the STA bit + // this will generate a start condition when the bus becomes free + i2c_conset(obj, 1, 0, 0, 1); + + i2c_wait_SI(obj); + status = i2c_status(obj); + + // Clear start bit now transmitted, and interrupt bit + i2c_conclr(obj, 1, 0, 0, 0); + return status; +} + +inline int i2c_stop(i2c_t *obj) { + int timeout = 0; + + // write the stop bit + i2c_conset(obj, 0, 1, 0, 0); + i2c_clear_SI(obj); + + // wait for STO bit to reset + while (I2C_CONSET(obj) & (1 << 4)) { + timeout ++; + if (timeout > 100000) return 1; + } + + return 0; +} + +static inline int i2c_do_write(i2c_t *obj, int value, uint8_t addr) { + // write the data + I2C_DAT(obj) = value; + + // clear SI to init a send + i2c_clear_SI(obj); + + // wait and return status + i2c_wait_SI(obj); + return i2c_status(obj); +} + +static inline int i2c_do_read(i2c_t *obj, int last) { + // we are in state 0x40 (SLA+R tx'd) or 0x50 (data rx'd and ack) + if (last) { + i2c_conclr(obj, 0, 0, 0, 1); // send a NOT ACK + } else { + i2c_conset(obj, 0, 0, 0, 1); // send a ACK + } + + // accept byte + i2c_clear_SI(obj); + + // wait for it to arrive + i2c_wait_SI(obj); + + // return the data + return (I2C_DAT(obj) & 0xFF); +} + +void i2c_frequency(i2c_t *obj, int hz) { + // [TODO] set pclk to /4 + uint32_t PCLK = SystemCoreClock / 4; + + uint32_t pulse = PCLK / (hz * 2); + + // I2C Rate + I2C_SCLL(obj, pulse); + I2C_SCLH(obj, pulse); +} + +// The I2C does a read or a write as a whole operation +// There are two types of error conditions it can encounter +// 1) it can not obtain the bus +// 2) it gets error responses at part of the transmission +// +// We tackle them as follows: +// 1) we retry until we get the bus. we could have a "timeout" if we can not get it +// which basically turns it in to a 2) +// 2) on error, we use the standard error mechanisms to report/debug +// +// Therefore an I2C transaction should always complete. If it doesn't it is usually +// because something is setup wrong (e.g. wiring), and we don't need to programatically +// check for that +int i2c_read(i2c_t *obj, int address, char *data, int length, int stop) { + int count, status; + + status = i2c_start(obj); + + if ((status != 0x10) && (status != 0x08)) { + i2c_stop(obj); + return I2C_ERROR_BUS_BUSY; + } + + status = i2c_do_write(obj, (address | 0x01), 1); + if (status != 0x40) { + i2c_stop(obj); + return I2C_ERROR_NO_SLAVE; + } + + // Read in all except last byte + for (count = 0; count < (length - 1); count++) { + int value = i2c_do_read(obj, 0); + status = i2c_status(obj); + if (status != 0x50) { + i2c_stop(obj); + return count; + } + data[count] = (char) value; + } + + // read in last byte + int value = i2c_do_read(obj, 1); + status = i2c_status(obj); + if (status != 0x58) { + i2c_stop(obj); + return length - 1; + } + + data[count] = (char) value; + + // If not repeated start, send stop. + if (stop) { + i2c_stop(obj); + } + + return length; +} + +int i2c_write(i2c_t *obj, int address, const char *data, int length, int stop) { + int i, status; + + status = i2c_start(obj); + + if ((status != 0x10) && (status != 0x08)) { + i2c_stop(obj); + return I2C_ERROR_BUS_BUSY; + } + + status = i2c_do_write(obj, (address & 0xFE), 1); + if (status != 0x18) { + i2c_stop(obj); + return I2C_ERROR_NO_SLAVE; + } + + for (i=0; i<length; i++) { + status = i2c_do_write(obj, data[i], 0); + if (status != 0x28) { + i2c_stop(obj); + return i; + } + } + + // clearing the serial interrupt here might cause an unintended rewrite of the last byte + // see also issue report https://mbed.org/users/mbed_official/code/mbed/issues/1 + // i2c_clear_SI(obj); + + // If not repeated start, send stop. + if (stop) { + i2c_stop(obj); + } + + return length; +} + +void i2c_reset(i2c_t *obj) { + i2c_stop(obj); +} + +int i2c_byte_read(i2c_t *obj, int last) { + return (i2c_do_read(obj, last) & 0xFF); +} + +int i2c_byte_write(i2c_t *obj, int data) { + int ack; + int status = i2c_do_write(obj, (data & 0xFF), 0); + + switch(status) { + case 0x18: case 0x28: // Master transmit ACKs + ack = 1; + break; + + case 0x40: // Master receive address transmitted ACK + ack = 1; + break; + + case 0xB8: // Slave transmit ACK + ack = 1; + break; + + default: + ack = 0; + break; + } + + return ack; +} + +void i2c_slave_mode(i2c_t *obj, int enable_slave) { + if (enable_slave != 0) { + i2c_conclr(obj, 1, 1, 1, 0); + i2c_conset(obj, 0, 0, 0, 1); + } else { + i2c_conclr(obj, 1, 1, 1, 1); + } +} + +int i2c_slave_receive(i2c_t *obj) { + int status; + int retval; + + status = i2c_status(obj); + switch(status) { + case 0x60: retval = 3; break; + case 0x70: retval = 2; break; + case 0xA8: retval = 1; break; + default : retval = 0; break; + } + + return(retval); +} + +int i2c_slave_read(i2c_t *obj, char *data, int length) { + int count = 0; + int status; + + do { + i2c_clear_SI(obj); + i2c_wait_SI(obj); + status = i2c_status(obj); + if((status == 0x80) || (status == 0x90)) { + data[count] = I2C_DAT(obj) & 0xFF; + } + count++; + } while (((status == 0x80) || (status == 0x90) || + (status == 0x060) || (status == 0x70)) && (count < length)); + + if(status != 0xA0) { + i2c_stop(obj); + } + + i2c_clear_SI(obj); + + return count; +} + +int i2c_slave_write(i2c_t *obj, const char *data, int length) { + int count = 0; + int status; + + if(length <= 0) { + return(0); + } + + do { + status = i2c_do_write(obj, data[count], 0); + count++; + } while ((count < length) && (status == 0xB8)); + + if((status != 0xC0) && (status != 0xC8)) { + i2c_stop(obj); + } + + i2c_clear_SI(obj); + + return(count); +} + +void i2c_slave_address(i2c_t *obj, int idx, uint32_t address, uint32_t mask) { + uint32_t addr; + + if ((idx >= 0) && (idx <= 3)) { + addr = ((uint32_t)obj->i2c) + I2C_addr_offset[0][idx]; + *((uint32_t *) addr) = address & 0xFF; + } +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/objects.h Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,78 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef MBED_OBJECTS_H +#define MBED_OBJECTS_H + +#include "cmsis.h" +#include "PortNames.h" +#include "PeripheralNames.h" +#include "PinNames.h" + +#ifdef __cplusplus +extern "C" { +#endif + +struct gpio_irq_s { + uint32_t port; + uint32_t pin; + uint32_t ch; +}; + +struct port_s { + __IO uint32_t *reg_dir; + __IO uint32_t *reg_out; + __I uint32_t *reg_in; + PortName port; + uint32_t mask; +}; + +struct pwmout_s { + __IO uint32_t *MR; + PWMName pwm; +}; + +struct serial_s { + LPC_UART_TypeDef *uart; + int index; +}; + +struct analogin_s { + ADCName adc; +}; + +struct dac_s { + DACName dac; +}; + +struct can_s { + LPC_CAN_TypeDef *dev; +}; + +struct i2c_s { + LPC_I2C_TypeDef *i2c; +}; + +struct spi_s { + LPC_SSP_TypeDef *spi; +}; + +#include "gpio_object.h" + +#ifdef __cplusplus +} +#endif + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/pinmap.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,46 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "mbed_assert.h" +#include "pinmap.h" +#include "mbed_error.h" + +void pin_function(PinName pin, int function) { + MBED_ASSERT(pin != (PinName)NC); + + uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0; + int index = pin_number >> 4; + int offset = (pin_number & 0xF) << 1; + + PINCONARRAY->PINSEL[index] &= ~(0x3 << offset); + PINCONARRAY->PINSEL[index] |= function << offset; +} + +void pin_mode(PinName pin, PinMode mode) { + MBED_ASSERT((pin != (PinName)NC) && (mode != OpenDrain)); + + uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0; + int index = pin_number >> 5; + int offset = pin_number & 0x1F; + uint32_t drain = ((uint32_t) mode & (uint32_t) OpenDrain) >> 2; + + if (!drain) { + index = pin_number >> 4; + offset = (pin_number & 0xF) << 1; + + PINCONARRAY->PINMODE[index] &= ~(0x3 << offset); + PINCONARRAY->PINMODE[index] |= (uint32_t)mode << offset; + } +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/port_api.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,71 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "port_api.h" +#include "pinmap.h" +#include "gpio_api.h" + +PinName port_pin(PortName port, int pin_n) { + return (PinName)(LPC_GPIO0_BASE + ((port << PORT_SHIFT) | pin_n)); +} + +void port_init(port_t *obj, PortName port, int mask, PinDirection dir) { + obj->port = port; + obj->mask = mask; + + LPC_GPIO_TypeDef *port_reg = (LPC_GPIO_TypeDef *)(LPC_GPIO0_BASE + ((int)port * 0x20)); + + // Do not use masking, because it prevents the use of the unmasked pins + // port_reg->FIOMASK = ~mask; + + obj->reg_out = &port_reg->FIOPIN; + obj->reg_in = &port_reg->FIOPIN; + obj->reg_dir = &port_reg->FIODIR; + + uint32_t i; + // The function is set per pin: reuse gpio logic + for (i=0; i<32; i++) { + if (obj->mask & (1<<i)) { + gpio_set(port_pin(obj->port, i)); + } + } + + port_dir(obj, dir); +} + +void port_mode(port_t *obj, PinMode mode) { + uint32_t i; + // The mode is set per pin: reuse pinmap logic + for (i=0; i<32; i++) { + if (obj->mask & (1<<i)) { + pin_mode(port_pin(obj->port, i), mode); + } + } +} + +void port_dir(port_t *obj, PinDirection dir) { + switch (dir) { + case PIN_INPUT : *obj->reg_dir &= ~obj->mask; break; + case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break; + } +} + +void port_write(port_t *obj, int value) { + *obj->reg_out = (*obj->reg_in & ~obj->mask) | (value & obj->mask); +} + +int port_read(port_t *obj) { + return (*obj->reg_in & obj->mask); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/pwmout_api.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,175 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "mbed_assert.h" +#include "pwmout_api.h" +#include "cmsis.h" +#include "pinmap.h" + +#define TCR_CNT_EN 0x00000001 +#define TCR_RESET 0x00000002 + +// PORT ID, PWM ID, Pin function +static const PinMap PinMap_PWM[] = { + {P1_18, PWM_1, 2}, + {P1_20, PWM_2, 2}, + {P1_21, PWM_3, 2}, + {P1_23, PWM_4, 2}, + {P1_24, PWM_5, 2}, + {P1_26, PWM_6, 2}, + {P2_0 , PWM_1, 1}, + {P2_1 , PWM_2, 1}, + {P2_2 , PWM_3, 1}, + {P2_3 , PWM_4, 1}, + {P2_4 , PWM_5, 1}, + {P2_5 , PWM_6, 1}, + {P3_24, PWM_1, 3}, + {P3_25, PWM_2, 3}, + {P3_26, PWM_3, 3}, + {P3_27, PWM_4, 3}, + {P3_28, PWM_5, 3}, + {P3_29, PWM_6, 3}, + {NC, NC, 0} +}; + +__IO uint32_t *PWM_MATCH[] = { + &(LPC_PWM1->MR0), + &(LPC_PWM1->MR1), + &(LPC_PWM1->MR2), + &(LPC_PWM1->MR3), + &(LPC_PWM1->MR4), + &(LPC_PWM1->MR5), + &(LPC_PWM1->MR6) +}; + +#define TCR_PWM_EN 0x00000008 + +static unsigned int pwm_clock_mhz; + +void pwmout_init(pwmout_t* obj, PinName pin) { + // determine the channel + PWMName pwm = (PWMName)pinmap_peripheral(pin, PinMap_PWM); + MBED_ASSERT(pwm != (PWMName)NC); + + obj->pwm = pwm; + obj->MR = PWM_MATCH[pwm]; + + // ensure the power is on + LPC_SC->PCONP |= 1 << 6; + + // ensure clock to /4 + LPC_SC->PCLKSEL0 &= ~(0x3 << 12); // pclk = /4 + LPC_PWM1->PR = 0; // no pre-scale + + // ensure single PWM mode + LPC_PWM1->MCR = 1 << 1; // reset TC on match 0 + + // enable the specific PWM output + LPC_PWM1->PCR |= 1 << (8 + pwm); + + pwm_clock_mhz = SystemCoreClock / 4000000; + + // default to 20ms: standard for servos, and fine for e.g. brightness control + pwmout_period_ms(obj, 20); + pwmout_write (obj, 0); + + // Wire pinout + pinmap_pinout(pin, PinMap_PWM); +} + +void pwmout_free(pwmout_t* obj) { + // [TODO] +} + +void pwmout_write(pwmout_t* obj, float value) { + if (value < 0.0f) { + value = 0.0; + } else if (value > 1.0f) { + value = 1.0; + } + + // set channel match to percentage + uint32_t v = (uint32_t)((float)(LPC_PWM1->MR0) * value); + + // workaround for PWM1[1] - Never make it equal MR0, else we get 1 cycle dropout + if (v == LPC_PWM1->MR0) { + v++; + } + + *obj->MR = v; + + // accept on next period start + LPC_PWM1->LER |= 1 << obj->pwm; +} + +float pwmout_read(pwmout_t* obj) { + float v = (float)(*obj->MR) / (float)(LPC_PWM1->MR0); + return (v > 1.0f) ? (1.0f) : (v); +} + +void pwmout_period(pwmout_t* obj, float seconds) { + pwmout_period_us(obj, seconds * 1000000.0f); +} + +void pwmout_period_ms(pwmout_t* obj, int ms) { + pwmout_period_us(obj, ms * 1000); +} + +// Set the PWM period, keeping the duty cycle the same. +void pwmout_period_us(pwmout_t* obj, int us) { + // calculate number of ticks + uint32_t ticks = pwm_clock_mhz * us; + + // set reset + LPC_PWM1->TCR = TCR_RESET; + + // set the global match register + LPC_PWM1->MR0 = ticks; + + // Scale the pulse width to preserve the duty ratio + if (LPC_PWM1->MR0 > 0) { + *obj->MR = (*obj->MR * ticks) / LPC_PWM1->MR0; + } + + // set the channel latch to update value at next period start + LPC_PWM1->LER |= 1 << 0; + + // enable counter and pwm, clear reset + LPC_PWM1->TCR = TCR_CNT_EN | TCR_PWM_EN; +} + +void pwmout_pulsewidth(pwmout_t* obj, float seconds) { + pwmout_pulsewidth_us(obj, seconds * 1000000.0f); +} + +void pwmout_pulsewidth_ms(pwmout_t* obj, int ms) { + pwmout_pulsewidth_us(obj, ms * 1000); +} + +void pwmout_pulsewidth_us(pwmout_t* obj, int us) { + // calculate number of ticks + uint32_t v = pwm_clock_mhz * us; + + // workaround for PWM1[1] - Never make it equal MR0, else we get 1 cycle dropout + if (v == LPC_PWM1->MR0) { + v++; + } + + // set the match register value + *obj->MR = v; + + // set the channel latch to update value at next period start + LPC_PWM1->LER |= 1 << obj->pwm; +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/rtc_api.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,117 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "rtc_api.h" + +// ensure rtc is running (unchanged if already running) + +/* Setup the RTC based on a time structure, ensuring RTC is enabled + * + * Can be clocked by a 32.768KHz oscillator or prescale divider based on the APB clock + * - We want to use the 32khz clock, allowing for sleep mode + * + * Most registers are not changed by a Reset + * - We must initialize these registers between power-on and setting the RTC into operation + + * Clock Control Register + * RTC_CCR[0] : Enable - 0 = Disabled, 1 = Enabled + * RTC_CCR[1] : Reset - 0 = Normal, 1 = Reset + * RTC_CCR[4] : Clock Source - 0 = Prescaler, 1 = 32k Xtal + * + * The RTC may already be running, so we should set it up + * without impacting if it is the case + */ +void rtc_init(void) { + LPC_SC->PCONP |= (1 << PCRTC); // Ensure power is on + LPC_RTC->CCR = 0x00; + + // clock source on 2368 is special test mode on 1768! + LPC_RTC->CCR |= 1 << 4; // Ensure clock source is 32KHz Xtal + + LPC_RTC->CCR |= 1 << 0; // Ensure the RTC is enabled +} + +void rtc_free(void) { + // [TODO] +} + +/* + * Little check routine to see if the RTC has been enabled + * + * Clock Control Register + * RTC_CCR[0] : 0 = Disabled, 1 = Enabled + * + */ + +int rtc_isenabled(void) { + return(((LPC_RTC->CCR) & 0x01) != 0); +} + +/* + * RTC Registers + * RTC_SEC Seconds 0-59 + * RTC_MIN Minutes 0-59 + * RTC_HOUR Hour 0-23 + * RTC_DOM Day of Month 1-28..31 + * RTC_DOW Day of Week 0-6 + * RTC_DOY Day of Year 1-365 + * RTC_MONTH Month 1-12 + * RTC_YEAR Year 0-4095 + * + * struct tm + * tm_sec seconds after the minute 0-61 + * tm_min minutes after the hour 0-59 + * tm_hour hours since midnight 0-23 + * tm_mday day of the month 1-31 + * tm_mon months since January 0-11 + * tm_year years since 1900 + * tm_wday days since Sunday 0-6 + * tm_yday days since January 1 0-365 + * tm_isdst Daylight Saving Time flag + */ +time_t rtc_read(void) { + // Setup a tm structure based on the RTC + struct tm timeinfo; + timeinfo.tm_sec = LPC_RTC->SEC; + timeinfo.tm_min = LPC_RTC->MIN; + timeinfo.tm_hour = LPC_RTC->HOUR; + timeinfo.tm_mday = LPC_RTC->DOM; + timeinfo.tm_mon = LPC_RTC->MONTH - 1; + timeinfo.tm_year = LPC_RTC->YEAR - 1900; + + // Convert to timestamp + time_t t = mktime(&timeinfo); + + return t; +} + +void rtc_write(time_t t) { + // Convert the time in to a tm + struct tm *timeinfo = localtime(&t); + + // Pause clock, and clear counter register (clears us count) + LPC_RTC->CCR |= 2; + + // Set the RTC + LPC_RTC->SEC = timeinfo->tm_sec; + LPC_RTC->MIN = timeinfo->tm_min; + LPC_RTC->HOUR = timeinfo->tm_hour; + LPC_RTC->DOM = timeinfo->tm_mday; + LPC_RTC->MONTH = timeinfo->tm_mon + 1; + LPC_RTC->YEAR = timeinfo->tm_year + 1900; + + // Restart clock + LPC_RTC->CCR &= ~((uint32_t)2); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/serial_api.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,338 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +// math.h required for floating point operations for baud rate calculation +#include "mbed_assert.h" +#include <math.h> +#include <string.h> +#include <stdlib.h> + +#include "serial_api.h" +#include "cmsis.h" +#include "pinmap.h" + +/****************************************************************************** + * INITIALIZATION + ******************************************************************************/ +#define UART_NUM 4 + +static const PinMap PinMap_UART_TX[] = { + {P0_0, UART_3, 2}, + {P0_2, UART_0, 1}, + {P0_10, UART_2, 1}, + {P0_15, UART_1, 1}, + {P0_25, UART_3, 3}, + {P2_0 , UART_1, 2}, + {P2_8 , UART_2, 2}, + {P4_28, UART_3, 3}, + {NC , NC , 0} +}; + +static const PinMap PinMap_UART_RX[] = { + {P0_1 , UART_3, 2}, + {P0_3 , UART_0, 1}, + {P0_11, UART_2, 1}, + {P0_16, UART_1, 1}, + {P0_26, UART_3, 3}, + {P2_1 , UART_1, 2}, + {P2_9 , UART_2, 2}, + {P4_29, UART_3, 3}, + {NC , NC , 0} +}; + +static uint32_t serial_irq_ids[UART_NUM] = {0}; +static uart_irq_handler irq_handler; + +int stdio_uart_inited = 0; +serial_t stdio_uart; + +void serial_init(serial_t *obj, PinName tx, PinName rx) { + int is_stdio_uart = 0; + + // determine the UART to use + UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX); + UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX); + UARTName uart = (UARTName)pinmap_merge(uart_tx, uart_rx); + MBED_ASSERT((int)uart != NC); + + obj->uart = (LPC_UART_TypeDef *)uart; + // enable power + switch (uart) { + case UART_0: LPC_SC->PCONP |= 1 << 3; break; + case UART_1: LPC_SC->PCONP |= 1 << 4; break; + case UART_2: LPC_SC->PCONP |= 1 << 24; break; + case UART_3: LPC_SC->PCONP |= 1 << 25; break; + } + + // enable fifos and default rx trigger level + obj->uart->FCR = 1 << 0 // FIFO Enable - 0 = Disables, 1 = Enabled + | 0 << 1 // Rx Fifo Reset + | 0 << 2 // Tx Fifo Reset + | 0 << 6; // Rx irq trigger level - 0 = 1 char, 1 = 4 chars, 2 = 8 chars, 3 = 14 chars + + // disable irqs + obj->uart->IER = 0 << 0 // Rx Data available irq enable + | 0 << 1 // Tx Fifo empty irq enable + | 0 << 2; // Rx Line Status irq enable + + // set default baud rate and format + serial_baud (obj, 9600); + serial_format(obj, 8, ParityNone, 1); + + // pinout the chosen uart + pinmap_pinout(tx, PinMap_UART_TX); + pinmap_pinout(rx, PinMap_UART_RX); + + // set rx/tx pins in PullUp mode + if (tx != NC) { + pin_mode(tx, PullUp); + } + if (rx != NC) { + pin_mode(rx, PullUp); + } + + switch (uart) { + case UART_0: obj->index = 0; break; + case UART_1: obj->index = 1; break; + case UART_2: obj->index = 2; break; + case UART_3: obj->index = 3; break; + } + + is_stdio_uart = (uart == STDIO_UART) ? (1) : (0); + + if (is_stdio_uart) { + stdio_uart_inited = 1; + memcpy(&stdio_uart, obj, sizeof(serial_t)); + } +} + +void serial_free(serial_t *obj) { + serial_irq_ids[obj->index] = 0; +} + +// serial_baud +// set the baud rate, taking in to account the current SystemFrequency +void serial_baud(serial_t *obj, int baudrate) { + MBED_ASSERT((int)obj->uart <= UART_3); + // The LPC2300 and LPC1700 have a divider and a fractional divider to control the + // baud rate. The formula is: + // + // Baudrate = (1 / PCLK) * 16 * DL * (1 + DivAddVal / MulVal) + // where: + // 1 < MulVal <= 15 + // 0 <= DivAddVal < 14 + // DivAddVal < MulVal + // + // set pclk to /1 + switch ((int)obj->uart) { + case UART_0: LPC_SC->PCLKSEL0 &= ~(0x3 << 6); LPC_SC->PCLKSEL0 |= (0x1 << 6); break; + case UART_1: LPC_SC->PCLKSEL0 &= ~(0x3 << 8); LPC_SC->PCLKSEL0 |= (0x1 << 8); break; + case UART_2: LPC_SC->PCLKSEL1 &= ~(0x3 << 16); LPC_SC->PCLKSEL1 |= (0x1 << 16); break; + case UART_3: LPC_SC->PCLKSEL1 &= ~(0x3 << 18); LPC_SC->PCLKSEL1 |= (0x1 << 18); break; + default: break; + } + + uint32_t PCLK = SystemCoreClock; + + // First we check to see if the basic divide with no DivAddVal/MulVal + // ratio gives us an integer result. If it does, we set DivAddVal = 0, + // MulVal = 1. Otherwise, we search the valid ratio value range to find + // the closest match. This could be more elegant, using search methods + // and/or lookup tables, but the brute force method is not that much + // slower, and is more maintainable. + uint16_t DL = PCLK / (16 * baudrate); + + uint8_t DivAddVal = 0; + uint8_t MulVal = 1; + int hit = 0; + uint16_t dlv; + uint8_t mv, dav; + if ((PCLK % (16 * baudrate)) != 0) { // Checking for zero remainder + int err_best = baudrate, b; + for (mv = 1; mv < 16 && !hit; mv++) + { + for (dav = 0; dav < mv; dav++) + { + // baudrate = PCLK / (16 * dlv * (1 + (DivAdd / Mul)) + // solving for dlv, we get dlv = mul * PCLK / (16 * baudrate * (divadd + mul)) + // mul has 4 bits, PCLK has 27 so we have 1 bit headroom which can be used for rounding + // for many values of mul and PCLK we have 2 or more bits of headroom which can be used to improve precision + // note: X / 32 doesn't round correctly. Instead, we use ((X / 16) + 1) / 2 for correct rounding + + if ((mv * PCLK * 2) & 0x80000000) // 1 bit headroom + dlv = ((((2 * mv * PCLK) / (baudrate * (dav + mv))) / 16) + 1) / 2; + else // 2 bits headroom, use more precision + dlv = ((((4 * mv * PCLK) / (baudrate * (dav + mv))) / 32) + 1) / 2; + + // datasheet says if DLL==DLM==0, then 1 is used instead since divide by zero is ungood + if (dlv == 0) + dlv = 1; + + // datasheet says if dav > 0 then DL must be >= 2 + if ((dav > 0) && (dlv < 2)) + dlv = 2; + + // integer rearrangement of the baudrate equation (with rounding) + b = ((PCLK * mv / (dlv * (dav + mv) * 8)) + 1) / 2; + + // check to see how we went + b = abs(b - baudrate); + if (b < err_best) + { + err_best = b; + + DL = dlv; + MulVal = mv; + DivAddVal = dav; + + if (b == baudrate) + { + hit = 1; + break; + } + } + } + } + } + + // set LCR[DLAB] to enable writing to divider registers + obj->uart->LCR |= (1 << 7); + + // set divider values + obj->uart->DLM = (DL >> 8) & 0xFF; + obj->uart->DLL = (DL >> 0) & 0xFF; + obj->uart->FDR = (uint32_t) DivAddVal << 0 + | (uint32_t) MulVal << 4; + + // clear LCR[DLAB] + obj->uart->LCR &= ~(1 << 7); +} + +void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) { + MBED_ASSERT((stop_bits == 1) || (stop_bits == 2)); // 0: 1 stop bits, 1: 2 stop bits + MBED_ASSERT((data_bits > 4) && (data_bits < 9)); // 0: 5 data bits ... 3: 8 data bits + MBED_ASSERT((parity == ParityNone) || (parity == ParityOdd) || (parity == ParityEven) || + (parity == ParityForced1) || (parity == ParityForced0)); + + stop_bits -= 1; + data_bits -= 5; + + int parity_enable = 0, parity_select = 0; + switch (parity) { + case ParityNone: parity_enable = 0; parity_select = 0; break; + case ParityOdd : parity_enable = 1; parity_select = 0; break; + case ParityEven: parity_enable = 1; parity_select = 1; break; + case ParityForced1: parity_enable = 1; parity_select = 2; break; + case ParityForced0: parity_enable = 1; parity_select = 3; break; + default: + break; + } + + obj->uart->LCR = data_bits << 0 + | stop_bits << 2 + | parity_enable << 3 + | parity_select << 4; +} + +/****************************************************************************** + * INTERRUPTS HANDLING + ******************************************************************************/ +static inline void uart_irq(uint32_t iir, uint32_t index) { + // [Chapter 14] LPC17xx UART0/2/3: UARTn Interrupt Handling + SerialIrq irq_type; + switch (iir) { + case 1: irq_type = TxIrq; break; + case 2: irq_type = RxIrq; break; + default: return; + } + + if (serial_irq_ids[index] != 0){ + irq_handler(serial_irq_ids[index], irq_type); + } +} + +void uart0_irq() {uart_irq((LPC_UART0->IIR >> 1) & 0x7, 0);} +void uart1_irq() {uart_irq((LPC_UART1->IIR >> 1) & 0x7, 1);} +void uart2_irq() {uart_irq((LPC_UART2->IIR >> 1) & 0x7, 2);} +void uart3_irq() {uart_irq((LPC_UART3->IIR >> 1) & 0x7, 3);} + +void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) { + irq_handler = handler; + serial_irq_ids[obj->index] = id; +} + +void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) { + IRQn_Type irq_n = (IRQn_Type)0; + uint32_t vector = 0; + switch ((int)obj->uart) { + case UART_0: irq_n=UART0_IRQn; vector = (uint32_t)&uart0_irq; break; + case UART_1: irq_n=UART1_IRQn; vector = (uint32_t)&uart1_irq; break; + case UART_2: irq_n=UART2_IRQn; vector = (uint32_t)&uart2_irq; break; + case UART_3: irq_n=UART3_IRQn; vector = (uint32_t)&uart3_irq; break; + } + + if (enable) { + obj->uart->IER |= 1 << irq; + NVIC_SetVector(irq_n, vector); + NVIC_EnableIRQ(irq_n); + } else { // disable + int all_disabled = 0; + SerialIrq other_irq = (irq == RxIrq) ? (TxIrq) : (RxIrq); + obj->uart->IER &= ~(1 << irq); + all_disabled = (obj->uart->IER & (1 << other_irq)) == 0; + if (all_disabled) + NVIC_DisableIRQ(irq_n); + } +} + +/****************************************************************************** + * READ/WRITE + ******************************************************************************/ +int serial_getc(serial_t *obj) { + while (!serial_readable(obj)); + return obj->uart->RBR; +} + +void serial_putc(serial_t *obj, int c) { + while (!serial_writable(obj)); + obj->uart->THR = c; +} + +int serial_readable(serial_t *obj) { + return obj->uart->LSR & 0x01; +} + +int serial_writable(serial_t *obj) { + return obj->uart->LSR & 0x20; +} + +void serial_clear(serial_t *obj) { + obj->uart->FCR = 1 << 1 // rx FIFO reset + | 1 << 2 // tx FIFO reset + | 0 << 6; // interrupt depth +} + +void serial_pinout_tx(PinName tx) { + pinmap_pinout(tx, PinMap_UART_TX); +} + +void serial_break_set(serial_t *obj) { + obj->uart->LCR |= (1 << 6); +} + +void serial_break_clear(serial_t *obj) { + obj->uart->LCR &= ~(1 << 6); +} +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/spi_api.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,219 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "mbed_assert.h" +#include <math.h> + +#include "spi_api.h" +#include "cmsis.h" +#include "pinmap.h" +#include "mbed_error.h" + +static const PinMap PinMap_SPI_SCLK[] = { + {P0_7 , SPI_1, 2}, + {P0_15, SPI_0, 2}, + {P1_20, SPI_0, 3}, + {P1_31, SPI_1, 2}, + {NC , NC , 0} +}; + +static const PinMap PinMap_SPI_MOSI[] = { + {P0_9 , SPI_1, 2}, + {P0_13, SPI_1, 2}, + {P0_18, SPI_0, 2}, + {P1_24, SPI_0, 3}, + {NC , NC , 0} +}; + +static const PinMap PinMap_SPI_MISO[] = { + {P0_8 , SPI_1, 2}, + {P0_12, SPI_1, 2}, + {P0_17, SPI_0, 2}, + {P1_23, SPI_0, 3}, + {NC , NC , 0} +}; + +static const PinMap PinMap_SPI_SSEL[] = { + {P0_6 , SPI_1, 2}, + {P0_14, SPI_1, 3}, + {P0_16, SPI_0, 2}, + {P1_21, SPI_0, 3}, + {NC , NC , 0} +}; + +static inline int ssp_disable(spi_t *obj); +static inline int ssp_enable(spi_t *obj); + +void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel) { + // determine the SPI to use + SPIName spi_mosi = (SPIName)pinmap_peripheral(mosi, PinMap_SPI_MOSI); + SPIName spi_miso = (SPIName)pinmap_peripheral(miso, PinMap_SPI_MISO); + SPIName spi_sclk = (SPIName)pinmap_peripheral(sclk, PinMap_SPI_SCLK); + SPIName spi_ssel = (SPIName)pinmap_peripheral(ssel, PinMap_SPI_SSEL); + SPIName spi_data = (SPIName)pinmap_merge(spi_mosi, spi_miso); + SPIName spi_cntl = (SPIName)pinmap_merge(spi_sclk, spi_ssel); + obj->spi = (LPC_SSP_TypeDef*)pinmap_merge(spi_data, spi_cntl); + MBED_ASSERT((int)obj->spi != NC); + + // enable power and clocking + switch ((int)obj->spi) { + case SPI_0: LPC_SC->PCONP |= 1 << PCSSP0; break; + case SPI_1: LPC_SC->PCONP |= 1 << PCSSP1; break; + } + + // set default format and frequency + if (ssel == NC) { + spi_format(obj, 8, 0, 0); // 8 bits, mode 0, master + } else { + spi_format(obj, 8, 0, 1); // 8 bits, mode 0, slave + } + spi_frequency(obj, 1000000); + + // enable the ssp channel + ssp_enable(obj); + + // pin out the spi pins + pinmap_pinout(mosi, PinMap_SPI_MOSI); + pinmap_pinout(miso, PinMap_SPI_MISO); + pinmap_pinout(sclk, PinMap_SPI_SCLK); + if (ssel != NC) { + pinmap_pinout(ssel, PinMap_SPI_SSEL); + } +} + +void spi_free(spi_t *obj) {} + +void spi_format(spi_t *obj, int bits, int mode, int slave) { + MBED_ASSERT(((bits >= 4) && (bits <= 16)) && ((mode >= 0) && (mode <= 3))); + ssp_disable(obj); + + int polarity = (mode & 0x2) ? 1 : 0; + int phase = (mode & 0x1) ? 1 : 0; + + // set it up + int DSS = bits - 1; // DSS (data select size) + int SPO = (polarity) ? 1 : 0; // SPO - clock out polarity + int SPH = (phase) ? 1 : 0; // SPH - clock out phase + + int FRF = 0; // FRF (frame format) = SPI + uint32_t tmp = obj->spi->CR0; + tmp &= ~(0xFFFF); + tmp |= DSS << 0 + | FRF << 4 + | SPO << 6 + | SPH << 7; + obj->spi->CR0 = tmp; + + tmp = obj->spi->CR1; + tmp &= ~(0xD); + tmp |= 0 << 0 // LBM - loop back mode - off + | ((slave) ? 1 : 0) << 2 // MS - master slave mode, 1 = slave + | 0 << 3; // SOD - slave output disable - na + obj->spi->CR1 = tmp; + + ssp_enable(obj); +} + +void spi_frequency(spi_t *obj, int hz) { + ssp_disable(obj); + + // setup the spi clock diveder to /1 + switch ((int)obj->spi) { + case SPI_0: + LPC_SC->PCLKSEL1 &= ~(3 << 10); + LPC_SC->PCLKSEL1 |= (1 << 10); + break; + case SPI_1: + LPC_SC->PCLKSEL0 &= ~(3 << 20); + LPC_SC->PCLKSEL0 |= (1 << 20); + break; + } + + uint32_t PCLK = SystemCoreClock; + + int prescaler; + + for (prescaler = 2; prescaler <= 254; prescaler += 2) { + int prescale_hz = PCLK / prescaler; + + // calculate the divider + int divider = floor(((float)prescale_hz / (float)hz) + 0.5f); + + // check we can support the divider + if (divider < 256) { + // prescaler + obj->spi->CPSR = prescaler; + + // divider + obj->spi->CR0 &= ~(0xFFFF << 8); + obj->spi->CR0 |= (divider - 1) << 8; + ssp_enable(obj); + return; + } + } + error("Couldn't setup requested SPI frequency"); +} + +static inline int ssp_disable(spi_t *obj) { + return obj->spi->CR1 &= ~(1 << 1); +} + +static inline int ssp_enable(spi_t *obj) { + return obj->spi->CR1 |= (1 << 1); +} + +static inline int ssp_readable(spi_t *obj) { + return obj->spi->SR & (1 << 2); +} + +static inline int ssp_writeable(spi_t *obj) { + return obj->spi->SR & (1 << 1); +} + +static inline void ssp_write(spi_t *obj, int value) { + while (!ssp_writeable(obj)); + obj->spi->DR = value; +} + +static inline int ssp_read(spi_t *obj) { + while (!ssp_readable(obj)); + return obj->spi->DR; +} + +static inline int ssp_busy(spi_t *obj) { + return (obj->spi->SR & (1 << 4)) ? (1) : (0); +} + +int spi_master_write(spi_t *obj, int value) { + ssp_write(obj, value); + return ssp_read(obj); +} + +int spi_slave_receive(spi_t *obj) { + return (ssp_readable(obj) && !ssp_busy(obj)) ? (1) : (0); +} + +int spi_slave_read(spi_t *obj) { + return obj->spi->DR; +} + +void spi_slave_write(spi_t *obj, int value) { + while (ssp_writeable(obj) == 0) ; + obj->spi->DR = value; +} + +int spi_busy(spi_t *obj) { + return ssp_busy(obj); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC2460/us_ticker.c Mon Jun 01 11:00:11 2015 +0100 @@ -0,0 +1,64 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include <stddef.h> +#include "us_ticker_api.h" +#include "PeripheralNames.h" + +#define US_TICKER_TIMER ((LPC_TIM_TypeDef *)LPC_TIM3_BASE) +#define US_TICKER_TIMER_IRQn TIMER3_IRQn + +int us_ticker_inited = 0; + +void us_ticker_init(void) { + if (us_ticker_inited) return; + us_ticker_inited = 1; + + LPC_SC->PCONP |= 1 << PCTIM3; // Clock TIMER_3 + + US_TICKER_TIMER->CTCR = 0x0; // timer mode + uint32_t PCLK = SystemCoreClock / 4; + + US_TICKER_TIMER->TCR = 0x2; // reset + + uint32_t prescale = PCLK / 1000000; // default to 1MHz (1 us ticks) + US_TICKER_TIMER->PR = prescale - 1; + US_TICKER_TIMER->TCR = 1; // enable = 1, reset = 0 + + NVIC_SetVector(US_TICKER_TIMER_IRQn, (uint32_t)us_ticker_irq_handler); + NVIC_EnableIRQ(US_TICKER_TIMER_IRQn); +} + +uint32_t us_ticker_read() { + if (!us_ticker_inited) + us_ticker_init(); + + return US_TICKER_TIMER->TC; +} + +void us_ticker_set_interrupt(timestamp_t timestamp) { + // set match value + US_TICKER_TIMER->MR0 = (uint32_t)timestamp; + // enable match interrupt + US_TICKER_TIMER->MCR |= 1; +} + +void us_ticker_disable_interrupt(void) { + US_TICKER_TIMER->MCR &= ~1; +} + +void us_ticker_clear_interrupt(void) { + US_TICKER_TIMER->IR = 1; +}
--- a/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pwmout_api.c Mon Jun 01 10:30:08 2015 +0100 +++ b/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pwmout_api.c Mon Jun 01 11:00:11 2015 +0100 @@ -139,7 +139,7 @@ value = 1; } - float pulse_period_in_s = obj->period_cycles / (float) pwm_clockfreq; + float pulse_period_in_s = obj->period_cycles / ((float) (pwm_clockfreq >> pwm_prescaler_div)); pwmout_pulsewidth(obj, value * pulse_period_in_s); } @@ -192,7 +192,7 @@ void pwmout_pulsewidth(pwmout_t *obj, float seconds) { - obj->width_cycles = pwm_clockfreq * seconds; + obj->width_cycles = (uint32_t) (((float) (pwm_clockfreq >> pwm_prescaler_div)) * seconds); TIMER_CompareBufSet(PWM_TIMER, obj->channel, obj->width_cycles); }