These are the examples provided for [[/users/frank26080115/libraries/LPC1700CMSIS_Lib/]] Note, the entire "program" is not compilable!
Diff: I2C/Monitor/i2c_monitor.c
- Revision:
- 0:bf7b9fba3924
diff -r 000000000000 -r bf7b9fba3924 I2C/Monitor/i2c_monitor.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/I2C/Monitor/i2c_monitor.c Sun Mar 20 05:38:56 2011 +0000 @@ -0,0 +1,230 @@ +/******************** (C) COPYRIGHT 2010 NXPSemiconductors ************ + * @file i2c_monitor.c + * @purpose This example describes how to uses I2C peripheral on LPC1768 + * in monitor mode. + * @version 1.0 + * @date 16. July. 2010 + * @author NXP MCU SW Application Team + *--------------------------------------------------------------------- + * Software that is described herein is for illustrative purposes only + * which provides customers with programming information regarding the + * products. This software is supplied "AS IS" without any warranties. + * NXP Semiconductors assumes no responsibility or liability for the + * use of the software, conveys no license or title under any patent, + * copyright, or mask work right to the product. NXP Semiconductors + * reserves the right to make changes in the software without + * notification. NXP Semiconductors also make no representation or + * warranty that such application will be suitable for the specified + * use without further testing or modification. + **********************************************************************/ +#include "lpc17xx_i2c.h" +#include "lpc17xx_libcfg.h" +#include "lpc17xx_pinsel.h" +#include "debug_frmwrk.h" + +/* Example group ----------------------------------------------------------- */ +/** @defgroup I2C_Monitor Monitor + * @ingroup I2C_Examples + * @{ + */ + +/************************** PRIVATE DEFINITIONS *************************/ +#define I2CDEV LPC_I2C0 + +/** Max buffer length */ +#define BUFFER_SIZE 0x80 +/************************** PRIVATE VARIABLES *************************/ +uint8_t menu1[] = +"********************************************************************************\n\r" +"Hello NXP Semiconductors \n\r" +"I2C monitor I2C bus demo \n\r" +"\t - MCU: LPC17xx \n\r" +"\t - Core: ARM Cortex-M3 \n\r" +"\t - This example describes how to uses I2C peripheral on LPC1768 \n\r" +"\t in monitor mode. \n\r" +"\t I2C0 monitors I2C data transfered on I2C bus. \n\r" +"\t UART0 (115200bps, 8 data bit, no parity, 1 stop bit, no flow control) \n\r" +"\t is used to display captured data. \n\r" +"********************************************************************************\n\r"; +uint8_t buffer[BUFFER_SIZE]; +BOOL_8 done=FALSE; +uint32_t count=0; + +/************************** PRIVATE FUNCTIONS *************************/ +void I2C0_IRQHandler(void); +void print_menu(void); +/*----------------- INTERRUPT SERVICE ROUTINES --------------------------*/ +/*********************************************************************//** + * @brief Main I2C0 interrupt handler sub-routine + * @param[in] None + * @return None + **********************************************************************/ +void I2C0_IRQHandler(void) +{ + done = I2C_MonitorHandler(LPC_I2C0,buffer,count); + if(done) + { + I2C_MonitorModeConfig(I2CDEV,(uint32_t)I2C_MONITOR_CFG_MATCHALL, DISABLE); + I2C_MonitorModeCmd(I2CDEV, DISABLE); + } +} + +/*-------------------------PRIVATE FUNCTIONS------------------------------*/ +/*********************************************************************//** + * @brief Print Welcome menu + * @param[in] none + * @return None + **********************************************************************/ +void print_menu(void) +{ + _DBG(menu1); +} + +/*-------------------------MAIN FUNCTION------------------------------*/ +/*********************************************************************//** + * @brief c_entry: Main program body + * @param[in] None + * @return int + **********************************************************************/ +int c_entry(void) +{ + PINSEL_CFG_Type PinCfg; + uint8_t idx,i; + /* Initialize debug via UART0 + * 115200bps + * 8 data bit + * No parity + * 1 stop bit + * No flow control + */ + debug_frmwrk_init(); + + //print menu screen + print_menu(); + + /* I2C block ------------------------------------------------------------------- */ + + /* + * Init I2C pin connect + */ + PinCfg.OpenDrain = 0; + PinCfg.Pinmode = 0; + PinCfg.Funcnum = 1; + PinCfg.Pinnum = 27; + PinCfg.Portnum = 0; + PINSEL_ConfigPin(&PinCfg);//SDA0 + PinCfg.Pinnum = 28; + PINSEL_ConfigPin(&PinCfg);//SCL0 + + // Initialize I2C peripheral + I2C_Init(I2CDEV, 100000); + + /* Configure interrupt for I2C in NVIC of ARM core */ + /* Disable I2C0 interrupt */ + NVIC_DisableIRQ(I2C0_IRQn); + /* preemption = 1, sub-priority = 0 */ + NVIC_SetPriority(I2C0_IRQn, ((0x01<<3)|0x01)); + //enable I2C interrupt + I2C_IntCmd(LPC_I2C0, ENABLE); + + /* Enable I2C operation */ + I2C_Cmd(I2CDEV, ENABLE); + + while(1) + { + idx=0;count=0; + while(idx<2) + { + if(idx==0) + { + _DBG_("\n\rEnter monitor buffer size: "); + } + idx++; + switch(_DG) + { + case '0': count=(count<<4)|0x00;break; + case '1': count=(count<<4)|0x01;break; + case '2': count=(count<<4)|0x02;break; + case '3': count=(count<<4)|0x03;break; + case '4': count=(count<<4)|0x04;break; + case '5': count=(count<<4)|0x05;break; + case '6': count=(count<<4)|0x06;break; + case '7': count=(count<<4)|0x07;break; + case '8': count=(count<<4)|0x08;break; + case '9': count=(count<<4)|0x09;break; + case 'a': count=(count<<4)|0x0A;break; + case 'A': count=(count<<4)|0x0A;break; + case 'b': count=(count<<4)|0x0B;break; + case 'B': count=(count<<4)|0x0B;break; + case 'c': count=(count<<4)|0x0C;break; + case 'C': count=(count<<4)|0x0C;break; + case 'd': count=(count<<4)|0x0D;break; + case 'D': count=(count<<4)|0x0D;break; + case 'e': count=(count<<4)|0x0E;break; + case 'E': count=(count<<4)|0x0E;break; + case 'f': count=(count<<4)|0x0F;break; + case 'F': count=(count<<4)|0x0F;break; + default: idx=0;count=0;break; + } + if(idx==2) + { + if(count>BUFFER_SIZE) + { + _DBG_("invalid! The size is bigger than ");_DBH(BUFFER_SIZE); + idx=0;count=0; + } + else + _DBH(count); + } + } + //Configure I2C in monitor mode + I2C_MonitorModeConfig(I2CDEV,(uint32_t)I2C_MONITOR_CFG_MATCHALL, ENABLE); + I2C_MonitorModeCmd(I2CDEV, ENABLE); + + _DBG_("\n\rStart monitoring I2C bus..."); + + while(done==FALSE); done=FALSE; + _DBG_("done!"); + for(i=0;i<count;i++) + { + if((i%16)==0) _DBG_(""); + _DBH(buffer[i]);_DBC(0x20); + buffer[i]=0; + } + + } + return 1; +} + +/* With ARM and GHS toolsets, the entry point is main() - this will + allow the linker to generate wrapper code to setup stacks, allocate + heap area, and initialize and copy code and data segments. For GNU + toolsets, the entry point is through __start() in the crt0_gnu.asm + file, and that startup code will setup stacks and data */ +int main(void) +{ + return c_entry(); +} + + +#ifdef DEBUG +/******************************************************************************* +* @brief Reports the name of the source file and the source line number +* where the CHECK_PARAM error has occurred. +* @param[in] file Pointer to the source file name +* @param[in] line assert_param error line source number +* @return None +*******************************************************************************/ +void check_failed(uint8_t *file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + /* Infinite loop */ + while(1); +} +#endif + +/* + * @} + */