官方例程的内部keil仿真出现flash出现写入全为0

puppet · 发表于 2015-5-4 16:48:02

[mw_shl_code=c,true]#include "stm32f10x_lib.h" #include "platform_config.h" /* Private typedef -----------------------------------------------------------*/ typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus; /* Private define ------------------------------------------------------------*/ #define StartAddr ((u32)0x08008000) #define EndAddr ((u32)0x0800C000) /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ u32 EraseCounter = 0x00, Address = 0x00; u32 Data; u32 dt; vu32 NbrOfPage = 0x00; volatile FLASH_Status FLASHStatus; volatile TestStatus MemoryProgramStatus; ErrorStatus HSEStartUpStatus; /* Private function prototypes -----------------------------------------------*/ void NVIC_Configuration(void); void RCC_Configuration(void); /* Private functions ---------------------------------------------------------*/ /******************************************************************************* * Function Name : main * Description : Main program * Input : None * Output : None * Return : None *******************************************************************************/ int main(void) { #ifdef DEBUG debug(); #endif FLASHStatus = FLASH_COMPLETE; MemoryProgramStatus = PASSED; Data = 0x15041979; /* RCC Configuration */ RCC_Configuration(); /* NVIC Configuration */ NVIC_Configuration(); /* Unlock the Flash Program Erase controller */ FLASH_Unlock(); /* Define the number of page to be erased */ NbrOfPage = (EndAddr - StartAddr) / FLASH_PAGE_SIZE; /* Clear All pending flags */ FLASH_ClearFlag(0x00000000); /* Erase the FLASH pages */ for(EraseCounter = 0; (EraseCounter < NbrOfPage) && (FLASHStatus == FLASH_COMPLETE); EraseCounter++) { FLASHStatus = FLASH_ErasePage(StartAddr + (FLASH_PAGE_SIZE * EraseCounter)); } /* FLASH Word program of data 0x15041979 at addresses defined by StartAddr and EndAddr*/ Address = StartAddr; while((Address < EndAddr) && (FLASHStatus == FLASH_COMPLETE)) { FLASHStatus = FLASH_ProgramWord(Address, Data); Address = Address + 4; dt=(*(vu32*) Address); } /* Check the corectness of written data */ Address = StartAddr; while((Address < EndAddr) && (MemoryProgramStatus != FAILED)) { if((*(vu32*) Address) != Data) { MemoryProgramStatus = FAILED; } Address += 4; } while (1) { } } /******************************************************************************* * Function Name : NVIC_Configuration * Description : Configures Vector Table base location. * Input : None * Output : None * Return : None *******************************************************************************/ void NVIC_Configuration(void) { #ifdef VECT_TAB_RAM /* Set the Vector Table base location at 0x20000000 */ NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0); #else /* VECT_TAB_FLASH */ /* Set the Vector Table base location at 0x08000000 */ NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0); #endif } /******************************************************************************* * Function Name : RCC_Configuration * Description : Configures the different system clocks. * Input : None * Output : None * Return : None *******************************************************************************/ void RCC_Configuration(void) { /* RCC system reset(for debug purpose) */ RCC_DeInit(); /* Enable HSE */ RCC_HSEConfig(RCC_HSE_ON); /* Wait till HSE is ready */ HSEStartUpStatus = RCC_WaitForHSEStartUp(); if(HSEStartUpStatus == SUCCESS) { /* Enable Prefetch Buffer */ FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); /* Flash 2 wait state */ FLASH_SetLatency(FLASH_Latency_2); /* HCLK = SYSCLK */ RCC_HCLKConfig(RCC_SYSCLK_Div1); /* PCLK2 = HCLK */ RCC_PCLK2Config(RCC_HCLK_Div1); /* PCLK1 = HCLK/2 */ RCC_PCLK1Config(RCC_HCLK_Div2); /* PLLCLK = 8MHz * 9 = 72 MHz */ RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9); /* Enable PLL */ RCC_PLLCmd(ENABLE); /* Wait till PLL is ready */ while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) { } /* Select PLL as system clock source */ RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); /* Wait till PLL is used as system clock source */ while(RCC_GetSYSCLKSource() != 0x08) { } } } #ifdef DEBUG /******************************************************************************* * Function Name : assert_failed * Description : Reports the name of the source file and the source line number * where the assert_param error has occurred. * Input : - file: pointer to the source file name * - line: assert_param error line source number * Output : None * Return : None *******************************************************************************/ void assert_failed(u8* file, u32 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) */ while (1) { } } #endif[/mw_shl_code]

刚学stm32，我用的是例程里面的flash代码，上面的代码 FLASH_ClearFlag(0x00000000);是我从原来的代码FLASH_ClearFlag(FLASH_FLAG_BSY | FLASH_FLAG_EOP|FLASH_FLAG_PGERR |FLASH_FLAG_WRPRTERR)得到的，按原来的代码运行，会导致flash-sr寄存器busy位一直置高，无法写入，现在遇到的问题就是，写入的不是预想的0x15041979，而全是0,下面附keil软件仿真图，从地址0x08008000到0x0800C000全为0，求大家指教！