main.cpp

00001 #include "mbed.h"
00002 
00003 DigitalOut myled(PB_12);
00004 
00005 void SystemClock_Config(void)
00006 {
00007   RCC_OscInitTypeDef RCC_OscInitStruct;
00008   RCC_ClkInitTypeDef RCC_ClkInitStruct;
00009 
00010   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
00011   RCC_OscInitStruct.HSEState = RCC_HSE_ON;
00012   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
00013   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
00014   RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL6;
00015   RCC_OscInitStruct.PLL.PREDIV = RCC_PREDIV_DIV1;
00016   HAL_RCC_OscConfig(&RCC_OscInitStruct);
00017 
00018   RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK;
00019   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
00020   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
00021   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
00022   HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1);
00023   
00024   SystemCoreClockUpdate();
00025 }
00026 
00027 int main() {
00028     
00029     //SystemClock_Config();    
00030     
00031     printf("SystemCoreClock = %d Hz\n\r", SystemCoreClock);
00032     
00033     while(1) {
00034         myled = !myled;
00035         wait(0.5);
00036     }
00037 }