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TM4C1294 Flash写入数据

大家好:

         最近我发现我在BootLoader里面写入数据到程序的运行期间。发现写入全部失败。代码:

while(ui32FlashAddr > len + TFTP_BLOCK_SIZE)
	{
		ui32FlashAddr =
				((g_ui32TFTPBlock - 1) * TFTP_BLOCK_SIZE) + APP_START_ADDRESS;

		W25QXX_Read(pui8Packet,UPGRADE_FLASH_ADDR + TFTP_BLOCK_SIZE,TFTP_BLOCK_SIZE);
		if(ui32FlashAddr < g_ui32FlashEnd)
			{
				//
				// If this is the first block and we have been provided with a start
				// hook function, call it here to indicate that we are about to begin
				// flashing a new image.
				//
		#ifdef BL_START_FN_HOOK
				if(g_ui32TFTPBlock == 1)
				{
					BL_START_FN_HOOK();
				}
		#endif

				//
				// Clear any flash error indicator.
				//
				BL_FLASH_CL_ERR_FN_HOOK();

				//
				// If this is the first data packet and code protection is enabled,
				// then erase the entire flash.
				//
		#ifdef FLASH_CODE_PROTECTION
				if(g_ui32TFTPBlock == 1)
				{
					//
					// Loop through the pages in the flash, excluding the pages that
					// contain the boot loader and the optional reserved space.
					//
					for(ui32Idx = APP_START_ADDRESS; ui32Idx < g_ui32FlashEnd;
						ui32Idx += FLASH_PAGE_SIZE)
					{
						//
						// Erase this block of the flash.
						//
						BL_FLASH_ERASE_FN_HOOK((ui32Idx);
					}
				}
		#else
				//
				// Flash code protection is not enabled, so see if the data in this
				// packet will be programmed to the beginning of a flash block.  We
				// assume that the flash block size is always a multiple of 1KB so,
				// since each TFTP packet is 512 bytes and that the start must always
				// be on a flash page boundary, we can be sure that we will hit the
				// start of each page as we receive packets.
				//
				if(!(ui32FlashAddr & (FLASH_PAGE_SIZE - 1)))
				{
					//
					// Erase this block of the flash.
					//
					BL_FLASH_ERASE_FN_HOOK(ui32FlashAddr);
				}
		#endif

				//
				// Decrypt the data if required.
				//
		#ifdef BL_DECRYPT_FN_HOOK
				BL_DECRYPT_FN_HOOK(pui8Packet + 4, uip_len - 4);
		#endif

				//
				// Program this block of data into flash.
				//
				BL_FLASH_PROGRAM_FN_HOOK(ui32FlashAddr, (pui8Packet),
						TFTP_BLOCK_SIZE);
			}
		g_ui32TFTPBlock ++;
	}
	((void (*)(void))APP_START_ADDRESS)();