LPC1227 LED闪烁实验

LPCXpresso-CN-1227这个板子使用的万利的MLINK仿真器，使用IAR编程环境，下载时出现问题，一直不能下载进Flash，弄了几天，无果，遂采用ISP的方式进行下载，但是这样就不能Debug，先只能这样用了。/* Includes ------------------------------------------------------------------*/#include "lpc12xx_libcfg.h"/* Private define ------------------------------------------------------------*//* Number of user LEDs */#define LED_NUM 4const unsigned long led_mask[] = { 4, 5, 6,7};/* Private variables ---------------------------------------------------------*//* SysTick Counter */volatile unsigned long SysTickCnt;/* Private functions ---------------------------------------------------------*/void SysTick_Handler (void);void Delay (unsigned long tick);/*** @brief SysTick handler sub-routine (1ms)* @paramNone* @return None*/void SysTick_Handler (void) {SysTickCnt++;}/*** @brief Delay function* @paramtick - number milisecond of delay time* @returnNone*/void Delay (unsigned long tick) {unsigned long systickcnt;systickcnt = SysTickCnt;while ((SysTickCnt - systickcnt) < tick);}/*** @brief Main program body* @param None* @return int*/int main (void){ /* Main Program */int num = -1;IOCON_PIO_CFG_Type PIO_mode;SystemInit(); /* 系统时钟初始化 */SysTick_Config(SystemCoreClock/1000 - 1); /* Generate interrupt each 1 ms */SYS_ConfigAHBCLK(SYS_AHBCLKCTRL_GPIO0, ENABLE);IOCON_StructInit(&PIO_mode);PIO_mode.type = IOCON_PIO_0_4;IOCON_SetFunc(&PIO_mode);PIO_mode.type = IOCON_PIO_0_5;IOCON_SetFunc(&PIO_mode);PIO_mode.type = IOCON_PIO_0_6;IOCON_SetFunc(&PIO_mode);PIO_mode.type = IOCON_PIO_0_7;IOCON_SetFunc(&PIO_mode);GPIO_SetDir(LPC_GPIO0, 4, 1);GPIO_SetDir(LPC_GPIO0, 5, 1); GPIO_SetDir(LPC_GPIO0, 6, 1);GPIO_SetDir(LPC_GPIO0, 7, 1);GPIO_SetLowLevel(LPC_GPIO0, 4, 1);GPIO_SetLowLevel(LPC_GPIO0, 5, 1); GPIO_SetLowLevel(LPC_GPIO0, 6, 1);GPIO_SetLowLevel(LPC_GPIO0, 7, 1);for (;;){ /* Loop forever */ num += 1; if (num == LED_NUM) { num =0; } GPIO_SetHighLevel(LPC_GPIO0, led_mask[num],1); Delay(500); /* Delay 500ms */ GPIO_SetLowLevel(LPC_GPIO0, led_mask[num],1); Delay(500); /* Delay 500ms */}}