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Diff: system_LPC17xx.c
- Revision:
- 135:c1e30e0e8949
- Parent:
- 134:caf4c9cd5052
- Child:
- 136:19b9e6abb86f
--- a/system_LPC17xx.c Thu Apr 14 14:13:18 2016 +0000 +++ b/system_LPC17xx.c Thu Apr 14 16:48:48 2016 +0000 @@ -9,9 +9,9 @@ * Copyright (C) 2009 ARM Limited. All rights reserved. * * @par - * ARM Limited (ARM) is supplying this software for use with Cortex-M - * processor based microcontrollers. This file can be freely distributed - * within development tools that are supporting such ARM based processors. + * ARM Limited (ARM) is supplying this software for use with Cortex-M + * processor based microcontrollers. This file can be freely distributed + * within development tools that are supporting such ARM based processors. * * @par * THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED @@ -287,12 +287,12 @@ //нам нужно 921600* 16 = 14 745 000, теперб выбираем делитель уартовский 7 = 103 219 200, дибо 8 = 117 964 800 //1 выбираем второе 117 964 800 округляем до 100 000 (для второго таймера) 118 000. таку. частоту нужно на входе УАРТА. -//118 * 3 = 354, 118 * 4 = 472. +//118 * 3 = 354, 118 * 4 = 472. // 354 / "3" = 118 //попробуем с 474 >> умножитель на 59 и делитель на 3 => 12 * 2 * ("58" + 1) / ("2" + 1) = 472. // 472 / "4" = 118 - + // с другой стороны не рекомендуют частоты выше 100 (120 только для 1769 или чото там еще ) // 103,200 => *3 = 309.6; * 4 = 412,8. // 412,8 умножитель на 86 и делитель на 5 => 12 * 2 * ("85" + 1) / ("4" + 1) = 412,8. !!!!!наверно можно остоновиься и попробовать!!!!!!!! @@ -461,6 +461,7 @@ // 0011 Flash accesses use 4 CPU clocks. Use for up to 80 MHz CPU clock. // 0100 Flash accesses use 5 CPU clocks. Use for up to 100 MHz CPU clock. Use for up to 120 Mhz for LPC1759 and LPC1769 only. // 0101 Flash accesses use 6 CPU clocks. This “safe” setting will work under any conditions. Other Intended for potential future higher speed devices. + // 31:16 - Reserved. The value read from a reserved bit is not defined. NA #define FLASHCFG_Val 0x0000303A//5 CPU clocks required for flash access 30720 @@ -476,55 +477,55 @@ /* Clock Configuration -------------------------------------------------------*/ #if (CHECK_RSVD((SCS_Val), ~0x00000030)) - #error "SCS: Invalid values of reserved bits!" +#error "SCS: Invalid values of reserved bits!" #endif #if (CHECK_RANGE((CLKSRCSEL_Val), 0, 2)) - #error "CLKSRCSEL: Value out of range!" +#error "CLKSRCSEL: Value out of range!" #endif #if (CHECK_RSVD((PLL0CFG_Val), ~0x00FF7FFF)) - #error "PLL0CFG: Invalid values of reserved bits!" +#error "PLL0CFG: Invalid values of reserved bits!" #endif #if (CHECK_RSVD((PLL1CFG_Val), ~0x0000007F)) - #error "PLL1CFG: Invalid values of reserved bits!" +#error "PLL1CFG: Invalid values of reserved bits!" #endif #if ((CCLKCFG_Val != 0) && (((CCLKCFG_Val - 1) % 2))) - #error "CCLKCFG: CCLKSEL field does not contain only odd values or 0!" +#error "CCLKCFG: CCLKSEL field does not contain only odd values or 0!" #endif #if (CHECK_RSVD((USBCLKCFG_Val), ~0x0000000F)) - #error "USBCLKCFG: Invalid values of reserved bits!" +#error "USBCLKCFG: Invalid values of reserved bits!" #endif #if (CHECK_RSVD((PCLKSEL0_Val), 0x000C0C00)) - #error "PCLKSEL0: Invalid values of reserved bits!" +#error "PCLKSEL0: Invalid values of reserved bits!" #endif #if (CHECK_RSVD((PCLKSEL1_Val), 0x03000300)) - #error "PCLKSEL1: Invalid values of reserved bits!" +#error "PCLKSEL1: Invalid values of reserved bits!" #endif #if (CHECK_RSVD((PCONP_Val), 0x10100821)) - #error "PCONP: Invalid values of reserved bits!" +#error "PCONP: Invalid values of reserved bits!" #endif #if (CHECK_RSVD((CLKOUTCFG_Val), ~0x000001FF)) - #error "CLKOUTCFG: Invalid values of reserved bits!" +#error "CLKOUTCFG: Invalid values of reserved bits!" #endif /* Flash Accelerator Configuration -------------------------------------------*/ #if (CHECK_RSVD((FLASHCFG_Val), ~0x0000F07F)) - #error "FLASHCFG: Invalid values of reserved bits!" +#error "FLASHCFG: Invalid values of reserved bits!" #endif /*---------------------------------------------------------------------------- DEFINES *----------------------------------------------------------------------------*/ - + /*---------------------------------------------------------------------------- Define clocks *----------------------------------------------------------------------------*/ @@ -537,27 +538,27 @@ /* 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 __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 - #else - #if ((CLKSRCSEL_Val & 0x03) == 1) - #define __CORE_CLK (OSC_CLK / __CCLK_DIV) - #elif ((CLKSRCSEL_Val & 0x03) == 2) - #define __CORE_CLK (RTC_CLK / __CCLK_DIV) - #else - #define __CORE_CLK (IRC_OSC / __CCLK_DIV) - #endif - #endif +#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 +#else +#if ((CLKSRCSEL_Val & 0x03) == 1) +#define __CORE_CLK (OSC_CLK / __CCLK_DIV) +#elif ((CLKSRCSEL_Val & 0x03) == 2) +#define __CORE_CLK (RTC_CLK / __CCLK_DIV) +#else +#define __CORE_CLK (IRC_OSC / __CCLK_DIV) +#endif +#endif /*---------------------------------------------------------------------------- @@ -572,43 +573,43 @@ *----------------------------------------------------------------------------*/ void SystemCoreClockUpdate1 (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 */ - SystemCoreClock1 = (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 */ - SystemCoreClock1 = (OSC_CLK * //it is our case osc_clk = 12 MHz - ((2 * ((LPC_SC->PLL0STAT & 0x7FFF) + 1))) / //PLL0 multiplier value - (((LPC_SC->PLL0STAT >> 16) & 0xFF) + 1) / //PLL0 pre-divider - ((LPC_SC->CCLKCFG & 0xFF)+ 1)); //divider for CCLK (SystemCoreClock) - break; - case 2: /* RTC oscillator => PLL0 */ - SystemCoreClock1 = (RTC_CLK * - ((2 * ((LPC_SC->PLL0STAT & 0x7FFF) + 1))) / - (((LPC_SC->PLL0STAT >> 16) & 0xFF) + 1) / - ((LPC_SC->CCLKCFG & 0xFF)+ 1)); - break; + /* 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 */ + SystemCoreClock1 = (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 */ + SystemCoreClock1 = (OSC_CLK * //it is our case osc_clk = 12 MHz + ((2 * ((LPC_SC->PLL0STAT & 0x7FFF) + 1))) / //PLL0 multiplier value + (((LPC_SC->PLL0STAT >> 16) & 0xFF) + 1) / //PLL0 pre-divider + ((LPC_SC->CCLKCFG & 0xFF)+ 1)); //divider for CCLK (SystemCoreClock) + break; + case 2: /* RTC oscillator => PLL0 */ + SystemCoreClock1 = (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 */ + SystemCoreClock1 = IRC_OSC / ((LPC_SC->CCLKCFG & 0xFF)+ 1); + break; + case 1: /* Main oscillator => PLL0 */ + SystemCoreClock1 = OSC_CLK / ((LPC_SC->CCLKCFG & 0xFF)+ 1); + break; + case 2: /* RTC oscillator => PLL0 */ + SystemCoreClock1 = RTC_CLK / ((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 */ - SystemCoreClock1 = IRC_OSC / ((LPC_SC->CCLKCFG & 0xFF)+ 1); - break; - case 1: /* Main oscillator => PLL0 */ - SystemCoreClock1 = OSC_CLK / ((LPC_SC->CCLKCFG & 0xFF)+ 1); - break; - case 2: /* RTC oscillator => PLL0 */ - SystemCoreClock1 = RTC_CLK / ((LPC_SC->CCLKCFG & 0xFF)+ 1); - break; - } - } } @@ -623,77 +624,75 @@ */ void SystemInit1 (void) { - +#if (CLOCK_SETUP) /* Clock Setup */ + //Init system control and status register + LPC_SC->SCS = SCS_Val;//0x20 - enable main oscillator,1...20MHz (12MHz) + if (SCS_Val & (1 << 5)) { /* If Main Oscillator is enabled */ + while ((LPC_SC->SCS & (1<<6)) == 0);/* Wait for Oscillator to be ready */ + } -#if (CLOCK_SETUP) /* Clock Setup */ - //Init system control and status register - LPC_SC->SCS = SCS_Val;//0x20 - enable main oscillator,1...20MHz (12MHz) - if (SCS_Val & (1 << 5)) { /* If Main Oscillator is enabled */ - while ((LPC_SC->SCS & (1<<6)) == 0);/* Wait for Oscillator to be ready */ - } - - //Init CPU Clock Configure Register - select the divide value for creating the CPU clock (CCLK) from the PLL0 output - LPC_SC->CCLKCFG = CCLKCFG_Val; //3 - divide to 4 (3MHz) + //Init CPU Clock Configure Register - select the divide value for creating the CPU clock (CCLK) from the PLL0 output + LPC_SC->CCLKCFG = CCLKCFG_Val; //3 - divide to 4 (3MHz) #if (PLL0_SETUP) - //Init Clock Source Select register - LPC_SC->CLKSRCSEL = CLKSRCSEL_Val;//1 - Select the main oscillator as the PLL0 clock source - //Init PLL0 Configuration register - LPC_SC->PLL0CFG = PLL0CFG_Val;//0x00050063: M - 100, N - 6, PLL0output = 2 * 100 * 12MHz / 6 = 400MHz, CPU clock 100MHz - //Init PLL0 Feed Register. This register enables loading of the PLL0 control and configuration information from the PLL0CON and PLL0CFG - //registers into the shadow registers that actually affect PLL0 operation. - //Write 0xAA and 0x55 sequentially to update shadow registers and settings to take effect - LPC_SC->PLL0FEED = 0xAA; - LPC_SC->PLL0FEED = 0x55; - //Init PLL0 Control register - // bit 0 - PLL0 Enable - // bit 1 - PLL0 connect - LPC_SC->PLL0CON = 0x01;//PLL0 Enable - //Update shadow registers to settings take effect - LPC_SC->PLL0FEED = 0xAA; - LPC_SC->PLL0FEED = 0x55; - //PLL0 Status register - // bits 0...14 - Read-back for the PLL0 Multiplier value - // bits 16...23 - Read-back for the PLL0 Pre-Divider value - // bit 24 - Read-back for the PLL0 Enable bit - // bit 25 - Read-back for the PLL0 Connect bit - // bit 26 - Reflects the PLL0 Lock status: 1 - locked - while (!(LPC_SC->PLL0STAT & (1<<26)));//Wait while PLL0 locked (PLOCK0) + //Init Clock Source Select register + LPC_SC->CLKSRCSEL = CLKSRCSEL_Val;//1 - Select the main oscillator as the PLL0 clock source + //Init PLL0 Configuration register + LPC_SC->PLL0CFG = PLL0CFG_Val;//0x00050063: M - 100, N - 6, PLL0output = 2 * 100 * 12MHz / 6 = 400MHz, CPU clock 100MHz + //Init PLL0 Feed Register. This register enables loading of the PLL0 control and configuration information from the PLL0CON and PLL0CFG + //registers into the shadow registers that actually affect PLL0 operation. + //Write 0xAA and 0x55 sequentially to update shadow registers and settings to take effect + LPC_SC->PLL0FEED = 0xAA; + LPC_SC->PLL0FEED = 0x55; + //Init PLL0 Control register + // bit 0 - PLL0 Enable + // bit 1 - PLL0 connect + LPC_SC->PLL0CON = 0x01;//PLL0 Enable + //Update shadow registers to settings take effect + LPC_SC->PLL0FEED = 0xAA; + LPC_SC->PLL0FEED = 0x55; + //PLL0 Status register + // bits 0...14 - Read-back for the PLL0 Multiplier value + // bits 16...23 - Read-back for the PLL0 Pre-Divider value + // bit 24 - Read-back for the PLL0 Enable bit + // bit 25 - Read-back for the PLL0 Connect bit + // bit 26 - Reflects the PLL0 Lock status: 1 - locked + while (!(LPC_SC->PLL0STAT & (1<<26)));//Wait while PLL0 locked (PLOCK0) - LPC_SC->PLL0CON = 0x03;//PLL0 Enable & Connect - LPC_SC->PLL0FEED = 0xAA; - LPC_SC->PLL0FEED = 0x55; - while (!(LPC_SC->PLL0STAT & ((1<<25) | (1<<24))));//Wait while PLL0 connected (PLLC0_STAT & PLLE0_STAT) + LPC_SC->PLL0CON = 0x03;//PLL0 Enable & Connect + LPC_SC->PLL0FEED = 0xAA; + LPC_SC->PLL0FEED = 0x55; + while (!(LPC_SC->PLL0STAT & ((1<<25) | (1<<24))));//Wait while PLL0 connected (PLLC0_STAT & PLLE0_STAT) #endif #if (PLL1_SETUP) - LPC_SC->PLL1CFG = PLL1CFG_Val;//0x23 M - 36, N - 1, output = 2 * 36 * 12MHz / 1 = 864MHz? - LPC_SC->PLL1FEED = 0xAA; - LPC_SC->PLL1FEED = 0x55; + LPC_SC->PLL1CFG = PLL1CFG_Val;//0x23 M - 36, N - 1, output = 2 * 36 * 12MHz / 1 = 864MHz? + LPC_SC->PLL1FEED = 0xAA; + LPC_SC->PLL1FEED = 0x55; - LPC_SC->PLL1CON = 0x01; /* PLL1 Enable */ - LPC_SC->PLL1FEED = 0xAA; - LPC_SC->PLL1FEED = 0x55; - while (!(LPC_SC->PLL1STAT & (1<<10)));/* Wait for PLOCK1 */ + LPC_SC->PLL1CON = 0x01; /* PLL1 Enable */ + LPC_SC->PLL1FEED = 0xAA; + LPC_SC->PLL1FEED = 0x55; + while (!(LPC_SC->PLL1STAT & (1<<10)));/* Wait for PLOCK1 */ - LPC_SC->PLL1CON = 0x03; /* PLL1 Enable & Connect */ - LPC_SC->PLL1FEED = 0xAA; - LPC_SC->PLL1FEED = 0x55; - while (!(LPC_SC->PLL1STAT & ((1<< 9) | (1<< 8))));/* Wait for PLLC1_STAT & PLLE1_STAT */ + LPC_SC->PLL1CON = 0x03; /* PLL1 Enable & Connect */ + LPC_SC->PLL1FEED = 0xAA; + LPC_SC->PLL1FEED = 0x55; + while (!(LPC_SC->PLL1STAT & ((1<< 9) | (1<< 8))));/* Wait for PLLC1_STAT & PLLE1_STAT */ #else - LPC_SC->USBCLKCFG = USBCLKCFG_Val; /* Setup USB Clock Divider */ + 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->PCLKSEL0 = PCLKSEL0_Val; /* Peripheral Clock Selection */ + LPC_SC->PCLKSEL1 = PCLKSEL1_Val; - LPC_SC->PCONP = PCONP_Val; /* Power Control for Peripherals */ + LPC_SC->PCONP = PCONP_Val; /* Power Control for Peripherals */ - LPC_SC->CLKOUTCFG = CLKOUTCFG_Val; /* Clock Output Configuration */ + LPC_SC->CLKOUTCFG = CLKOUTCFG_Val; /* Clock Output Configuration */ #endif #if (FLASH_SETUP == 1) /* Flash Accelerator Setup */ - LPC_SC->FLASHCFG = FLASHCFG_Val; + LPC_SC->FLASHCFG = FLASHCFG_Val; #endif } @@ -708,88 +707,88 @@ #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->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 */ + LPC_SC->CCLKCFG = CCLKCFG_Val; /* Setup Clock Divider */ - LPC_SC->PCLKSEL0 = PCLKSEL0_Val; /* Peripheral Clock Selection */ - LPC_SC->PCLKSEL1 = PCLKSEL1_Val; + LPC_SC->PCLKSEL0 = PCLKSEL0_Val; /* Peripheral Clock Selection */ + LPC_SC->PCLKSEL1 = PCLKSEL1_Val; #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->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; + LPC_SC->PLL0CON = 0x03; /* PLL0 Enable & Connect */ + LPC_SC->PLL0FEED = 0xAA; + LPC_SC->PLL0FEED = 0x55; #endif #if (PLL1_SETUP) - LPC_SC->PLL1CFG = PLL1CFG_Val; - LPC_SC->PLL1CON = 0x01; /* PLL1 Enable */ - LPC_SC->PLL1FEED = 0xAA; - LPC_SC->PLL1FEED = 0x55; - while (!(LPC_SC->PLL1STAT & (1<<10)));/* Wait for PLOCK1 */ + LPC_SC->PLL1CFG = PLL1CFG_Val; + LPC_SC->PLL1CON = 0x01; /* PLL1 Enable */ + LPC_SC->PLL1FEED = 0xAA; + LPC_SC->PLL1FEED = 0x55; + while (!(LPC_SC->PLL1STAT & (1<<10)));/* Wait for PLOCK1 */ - LPC_SC->PLL1CON = 0x03; /* PLL1 Enable & Connect */ - LPC_SC->PLL1FEED = 0xAA; - LPC_SC->PLL1FEED = 0x55; + LPC_SC->PLL1CON = 0x03; /* PLL1 Enable & Connect */ + LPC_SC->PLL1FEED = 0xAA; + LPC_SC->PLL1FEED = 0x55; #else - LPC_SC->USBCLKCFG = USBCLKCFG_Val; /* Setup USB Clock Divider */ + LPC_SC->USBCLKCFG = USBCLKCFG_Val; /* Setup USB Clock Divider */ #endif - LPC_SC->PCONP = PCONP_Val; /* Power Control for Peripherals */ + LPC_SC->PCONP = PCONP_Val; /* Power Control for Peripherals */ - LPC_SC->CLKOUTCFG = CLKOUTCFG_Val; /* Clock Output Configuration */ + LPC_SC->CLKOUTCFG = 0x0000303A;//CLKOUTCFG_Val; /* Clock Output Configuration */ #endif - /* 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: /* Internal RC oscillator => PLL0 */ - case 3: /* Reserved, default to Internal RC */ - SystemFrequency = (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 */ - SystemFrequency = (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 */ - SystemFrequency = (RTC_CLK * - (((2 * ((LPC_SC->PLL0STAT & 0x7FFF) + 1))) / - (((LPC_SC->PLL0STAT >> 16) & 0xFF) + 1)) / - ((LPC_SC->CCLKCFG & 0xFF)+ 1)); - break; + /* 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: /* Internal RC oscillator => PLL0 */ + case 3: /* Reserved, default to Internal RC */ + SystemFrequency = (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 */ + SystemFrequency = (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 */ + SystemFrequency = (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: /* Internal RC oscillator => PLL0 */ + case 3: /* Reserved, default to Internal RC */ + SystemFrequency = IRC_OSC / ((LPC_SC->CCLKCFG & 0xFF)+ 1); + break; + case 1: /* Main oscillator => PLL0 */ + SystemFrequency = OSC_CLK / ((LPC_SC->CCLKCFG & 0xFF)+ 1); + break; + case 2: /* RTC oscillator => PLL0 */ + SystemFrequency = RTC_CLK / ((LPC_SC->CCLKCFG & 0xFF)+ 1); + break; + } } - } else { - switch (LPC_SC->CLKSRCSEL & 0x03) { - case 0: /* Internal RC oscillator => PLL0 */ - case 3: /* Reserved, default to Internal RC */ - SystemFrequency = IRC_OSC / ((LPC_SC->CCLKCFG & 0xFF)+ 1); - break; - case 1: /* Main oscillator => PLL0 */ - SystemFrequency = OSC_CLK / ((LPC_SC->CCLKCFG & 0xFF)+ 1); - break; - case 2: /* RTC oscillator => PLL0 */ - SystemFrequency = RTC_CLK / ((LPC_SC->CCLKCFG & 0xFF)+ 1); - break; - } - } #if (FLASH_SETUP == 1) /* Flash Accelerator Setup */ - LPC_SC->FLASHCFG = FLASHCFG_Val; + LPC_SC->FLASHCFG = FLASHCFG_Val; #endif } @@ -807,91 +806,91 @@ { - + #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->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 */ + LPC_SC->CCLKCFG = CCLKCFG_Val; /* Setup Clock Divider */ - LPC_SC->PCLKSEL0 = PCLKSEL0_Val; /* Peripheral Clock Selection */ - LPC_SC->PCLKSEL1 = PCLKSEL1_Val; + LPC_SC->PCLKSEL0 = PCLKSEL0_Val; /* Peripheral Clock Selection */ + LPC_SC->PCLKSEL1 = PCLKSEL1_Val; #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->CLKSRCSEL = 0; 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; + LPC_SC->PLL0CON = 0x03; /* PLL0 Enable & Connect */ + LPC_SC->PLL0FEED = 0xAA; + LPC_SC->PLL0FEED = 0x55; #endif #if (PLL1_SETUP) - LPC_SC->PLL1CFG = PLL1CFG_Val; - LPC_SC->PLL1CON = 0x01; /* PLL1 Enable */ - LPC_SC->PLL1FEED = 0xAA; - LPC_SC->PLL1FEED = 0x55; - while (!(LPC_SC->PLL1STAT & (1<<10)));/* Wait for PLOCK1 */ + LPC_SC->PLL1CFG = PLL1CFG_Val; + LPC_SC->PLL1CON = 0x01; /* PLL1 Enable */ + LPC_SC->PLL1FEED = 0xAA; + LPC_SC->PLL1FEED = 0x55; + while (!(LPC_SC->PLL1STAT & (1<<10)));/* Wait for PLOCK1 */ - LPC_SC->PLL1CON = 0x03; /* PLL1 Enable & Connect */ - LPC_SC->PLL1FEED = 0xAA; - LPC_SC->PLL1FEED = 0x55; + LPC_SC->PLL1CON = 0x03; /* PLL1 Enable & Connect */ + LPC_SC->PLL1FEED = 0xAA; + LPC_SC->PLL1FEED = 0x55; #else - LPC_SC->USBCLKCFG = USBCLKCFG_Val; /* Setup USB Clock Divider */ + LPC_SC->USBCLKCFG = USBCLKCFG_Val; /* Setup USB Clock Divider */ #endif - LPC_SC->PCONP = PCONP_Val; /* Power Control for Peripherals */ + LPC_SC->PCONP = PCONP_Val; /* Power Control for Peripherals */ - LPC_SC->CLKOUTCFG = CLKOUTCFG_Val; /* Clock Output Configuration */ + LPC_SC->CLKOUTCFG = CLKOUTCFG_Val; /* Clock Output Configuration */ #endif - /* 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: /* Internal RC oscillator => PLL0 */ - case 3: /* Reserved, default to Internal RC */ - SystemFrequency = (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 */ - SystemFrequency = (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 */ - SystemFrequency = (RTC_CLK * - (((2 * ((LPC_SC->PLL0STAT & 0x7FFF) + 1))) / - (((LPC_SC->PLL0STAT >> 16) & 0xFF) + 1)) / - ((LPC_SC->CCLKCFG & 0xFF)+ 1)); - break; + /* 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: /* Internal RC oscillator => PLL0 */ + case 3: /* Reserved, default to Internal RC */ + SystemFrequency = (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 */ + SystemFrequency = (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 */ + SystemFrequency = (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: /* Internal RC oscillator => PLL0 */ + case 3: /* Reserved, default to Internal RC */ + SystemFrequency = IRC_OSC / ((LPC_SC->CCLKCFG & 0xFF)+ 1); + break; + case 1: /* Main oscillator => PLL0 */ + SystemFrequency = OSC_CLK / ((LPC_SC->CCLKCFG & 0xFF)+ 1); + break; + case 2: /* RTC oscillator => PLL0 */ + SystemFrequency = RTC_CLK / ((LPC_SC->CCLKCFG & 0xFF)+ 1); + break; + } } - } else { - switch (LPC_SC->CLKSRCSEL & 0x03) { - case 0: /* Internal RC oscillator => PLL0 */ - case 3: /* Reserved, default to Internal RC */ - SystemFrequency = IRC_OSC / ((LPC_SC->CCLKCFG & 0xFF)+ 1); - break; - case 1: /* Main oscillator => PLL0 */ - SystemFrequency = OSC_CLK / ((LPC_SC->CCLKCFG & 0xFF)+ 1); - break; - case 2: /* RTC oscillator => PLL0 */ - SystemFrequency = RTC_CLK / ((LPC_SC->CCLKCFG & 0xFF)+ 1); - break; - } - } #if (FLASH_SETUP == 1) /* Flash Accelerator Setup */ - LPC_SC->FLASHCFG = FLASHCFG_Val; + LPC_SC->FLASHCFG = FLASHCFG_Val; #endif