[参考译文] DLPC3478：写闪存模式不适用于特定大小。

https://e2e.ti.com/support/dlp-products-group/dlp/f/dlp-products-forum/1514506/dlpc3478-the-write-a-flash-pattern-doesn-t-work-with-specific-sizes

工具/软件：

您好：

 使用以下代码上传闪存时遇到以下问题：

/* write up to 1024 bytes of data */
uint8_t PatternDataArray[1024];

/* Pattern File assumes to be in the \build\vs2017\dlpc347x folder */
s_FilePointer = fopen(arxiu, "rb");
if (!s_FilePointer)
{
    //printf("Error opening the binary file!");
    return;
}
fseek(s_FilePointer, 0, SEEK_END);
uint32_t PatternDataSize = ftell(s_FilePointer);
fseek(s_FilePointer, 0, SEEK_SET);

/* Select Flash Data Block and Erase the Block */
DLPC34XX_DUAL_WriteFlashDataTypeSelect(DLPC34XX_DUAL_FDTS_ENTIRE_SENS_PATTERN_DATA);
DLPC34XX_DUAL_WriteFlashErase();

/* Read Short Status to make sure Erase is completed */
DLPC34XX_DUAL_ShortStatus_s ShortStatus;
do
{
    DLPC34XX_DUAL_ReadShortStatus(&ShortStatus);
} while (ShortStatus.FlashEraseComplete == DLPC34XX_DUAL_FE_NOT_COMPLETE);

DLPC34XX_DUAL_WriteFlashDataLength(1024);
fread(PatternDataArray, sizeof(PatternDataArray), 1, s_FilePointer);
DLPC34XX_DUAL_WriteFlashStart(1024, PatternDataArray);

int32_t BytesLeft = PatternDataSize - 1024;
do
{
    fread(PatternDataArray, sizeof(PatternDataArray), 1, s_FilePointer);
    DLPC34XX_DUAL_WriteFlashContinue(1024, PatternDataArray);

    BytesLeft = BytesLeft - 1024;
} while (BytesLeft > 0);

fclose(s_FilePointer);

我进行下一个测试：

使用1024 字节块大小->正确

使用512 字节块大小->正确

使用256 字节块大小->正确

使用128 字节块大小-> Ko  

使用260字节块大小-> Ko

我想用四倍的限制来确定块大小,但这不适用于260字节。 为了满足电子要求、我们需要一个小于32字节且可被4整除的数字。 我们是否需要考虑任何其他限制、以帮助我们决定此块大小？

可以帮帮我吗？ 谢谢你。

此致。