通過軟件Progam PIC32內部閃存

我正在編程並驗證PIC32MX360F512L上的一個內部閃存塊。我有一個功能，一次擦除，編程和驗證一個4096字節塊。當我運行它時，函數掛起嘗試驗證第一個字節。通過軟件Progam PIC32內部閃存

BOOL Loader_ProgramFlashBlock(unsigned long int adr, unsigned int *p) 
{ 
unsigned long int CurrentAddress; 
unsigned long int PageEndAddress; 
unsigned int  *pData; 
unsigned int  nvmResult; 

// Calculate the beginning and ending addresses of the page. 
CurrentAddress = adr; 
PageEndAddress = CurrentAddress + FLASH_BLOCK_SIZE; 
pData   = (unsigned int *)p; 

    // Check to see if the page has been erased 
    { 
     // If not, erase the page & log track it 
     nvmResult = NVMErasePage((void *)CurrentAddress); 
     if (nvmResult != 0) 
     { 
      // Error erasing Flash page 
      return FALSE; 
     } 
    } 

    // Program the block to Flash 
    while (CurrentAddress < PageEndAddress) 
    { 
     if (NVMWriteWord((void *)CurrentAddress, *pData) != FALSE) 
     { 
      // Error Writing Flash 
      return FALSE; 
     } 
     pData++; 
     CurrentAddress += sizeof(unsigned int); 
    } 

    // Verify that the block was written correctly 
    // (This check will identify writes to a Flash block that was not fully erased.) 
    CurrentAddress = adr; 
    pData   = (unsigned int *)p; 
    while (CurrentAddress < PageEndAddress) 
    { 
     // Compare buffer contents to Flash contents 
     if (*((unsigned int *)PA_TO_KVA1(CurrentAddress)) != *pData) 
     { 
      // Flash and buffer did not match. 
      return FALSE; 
     } 
     pData++; 
     CurrentAddress += sizeof(unsigned int); 
    } 


    return TRUE; 

} // Loader_ProgramFlashBlock

功能掛起試圖驗證閃存的第一個字在該行：

如果（！*（（unsigned int類型*）PA_TO_KVA1（CurrentAddress））= * pData所）

擦除和數據寫入似乎已經工作。任何建議是什麼導致這個？

此代碼可用於其他應用程序。

來源

2014-02-20 Dennis Kerrisk

你重寫哪個內存塊？哪些數據位於那裏？你是否忽略了你的裝載器所使用的一些函數，或者一些中斷處理程序，這些函數在編寫時可能會有效？

來源

2014-02-22 08:50:46 kirill

我正在從應用程序中寫入新的引導加載程序。中斷被禁用。 –

確保您的閃存未被鎖定以供讀取 – kirill

通過軟件Progam PIC32內部閃存

回答

相關問題