按你说的，找到了。非常感谢提醒
/**
******************************************************************************
* @brief Main program body
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "gd32f1x0.h"
#include "gd32f1x0_gpio.h"
#include "gd32f1x0_eval.h"
/* Private typedef -----------------------------------------------------------*/
typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus;
/* Private define ------------------------------------------------------------*/
#define BufferSize 2048
#define FMC_PAGE_SIZE ((uint16_t)0x400)
#define FMC_PAGES_PROTECTED (WRP_SECTOR4)
#define BANK1_WRITE_START_ADDR ((uint32_t)0x08004000)
#define BANK1_WRITE_END_ADDR ((uint32_t)0x08004800)
/* Private function prototypes -----------------------------------------------*/
void LED_config(void);
/* Private variables ---------------------------------------------------------*/
uint32_t m2m = 0,m2u =0;
__IO TestStatus TransferStatus = FAILED;
uint32_t *ptrd;
uint32_t WriteProtected_Value = 0xFFFFFFFF, ProtectedPages = 0x0;
uint32_t EraseCounter = 0x00, Address = 0x00;
uint32_t Data = 0x1234ABCD;
__IO uint32_t NbrOfPage = 0x00;
volatile FMC_State FMCStatus = FMC_READY;
volatile TestStatus MemoryProgramStatus = PASSED;
/* Uncomment this line to program the Falsh pages */
#define FMC_PAGE_PROGRAM
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
uint32_t i;
TransferStatus = PASSED;
GD_EVAL_LEDInit(LED1);
GD_EVAL_LEDInit(LED2);
GD_EVAL_LEDInit(LED3);
GD_EVAL_LEDInit(LED4);
/* Unlock the Flash Bank1 Program Erase controller */
FMC_Unlock();
FMC_OB_Unlock();
/* Clear All pending flags */
FMC_ClearBitState(FMC_FLAG_EOP | FMC_FLAG_WERR | FMC_FLAG_PERR );
/* Get status of pages write protection */
WriteProtected_Value = FMC_OB_GetWRP();
#ifdef WRITE_PROTECTION_DISABLE
/* Get write protected pages */
ProtectedPages = ~(WriteProtected_Value | FMC_PAGES_PROTECTED);
/* Check whether the specified pages is write protected */
if((WriteProtected_Value | (~FMC_PAGES_PROTECTED)) != 0xFFFFFFFF)
{
/* Erase all the option Bytes */
FMCStatus = FMC_OB_Erase();
/* Check if other pages write protected */
if(ProtectedPages != 0x0)
{
/* Restore other pages write protected */
FMCStatus = FMC_OB_EnableWRP(ProtectedPages);
}
/* Generate a system reset to reload the option byte */
FMC_OB_Reset();
}
#elif defined WRITE_PROTECTION_ENABLE
/* Get already write protected pages and the new specified pages to be protected */
ProtectedPages = (~WriteProtected_Value) | FMC_PAGES_PROTECTED;
/* Check whether the specified pages is write protected */
if(((~WriteProtected_Value) & FMC_PAGES_PROTECTED )!= FMC_PAGES_PROTECTED)
{
FMCStatus = FMC_OB_Erase();
/* Enable the pages write protection */
FMCStatus = FMC_OB_EnableWRP(ProtectedPages);
/* Generate a system reset to reload the option byte */
FMC_OB_Reset();
}
#endif
#ifdef FMC_PAGE_PROGRAM
/* Define the number of page to be erased */
NbrOfPage = (BANK1_WRITE_END_ADDR - BANK1_WRITE_START_ADDR) / FMC_PAGE_SIZE;
/* Erase the FLASH pages */
for(EraseCounter = 0; EraseCounter < NbrOfPage; EraseCounter++)
{
FMCStatus = FMC_ErasePage(BANK1_WRITE_START_ADDR + (FMC_PAGE_SIZE * EraseCounter));
FMC_ClearBitState(FMC_FLAG_EOP | FMC_FLAG_WERR | FMC_FLAG_PERR );
}
FMC_Lock();
ptrd = (uint32_t*)BANK1_WRITE_START_ADDR;
for(i = 0; i < 512; i++)
{
if(*ptrd != 0xFFFFFFFF)
{
TransferStatus = FAILED;
break;
}
else
{
ptrd++;
}
}
/* Unlock the Flash Bank1 Program Erase controller */
FMC_Unlock();
/* Program Flash Bank1 */
Address = BANK1_WRITE_START_ADDR;
while(Address < BANK1_WRITE_END_ADDR)
{
FMCStatus = FMC_ProgramWord(Address, Data);
Address = Address + 4;
FMC_ClearBitState(FMC_FLAG_EOP | FMC_FLAG_WERR | FMC_FLAG_PERR );
}
FMC_Lock();
ptrd = (uint32_t*)BANK1_WRITE_START_ADDR;
for(i = 0; i < 512; i++)
{
if(*ptrd == 0xFFFFFFFF)
{
TransferStatus = FAILED;
break;
}
else
{
ptrd++;
}
}
if(TransferStatus == FAILED)
{
GD_EVAL_LEDOn(LED1);
GD_EVAL_LEDOff(LED2);
GD_EVAL_LEDOn(LED3);
GD_EVAL_LEDOff(LED4);
}
else
{
GD_EVAL_LEDOff(LED1);
GD_EVAL_LEDOn(LED2);
GD_EVAL_LEDOff(LED3);
GD_EVAL_LEDOn(LED4);
}
#endif
while(1)
{
}
}
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