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标题: 新人求助LPC1788 USBhost [ [打印本页]

作者: 123321 时间: 2015-3-24 19:06
标题: 新人求助LPC1788 USBhost [

本帖最后由 netlabel 于 2015-3-20 17:53 编辑

USBHost 移植成功但是写U盘的时候出问题，求助老大们！！！如下程序能正常读写U盘文件，但是我要将程序中某个数组的数据如：uint_8 data[]={0xff,0xff}保存到U盘XX.TXT应该怎么做?
用UserBuffer指向data好像不行！！
void  Main_Write (void)
{
int32_t  fdw;
int32_t  fdr;
uint32_t  tot_bytes_written;
uint32_t  bytes_written;

fdr = FILE_Open(FILENAME_R, RDONLY);
if (fdr > 0) {
      FILE_Read(fdr, UserBuffer, MAX_BUFFER_SIZE);
      fdw = FILE_Open(FILENAME_W, RDWR);
      if (fdw > 0) {
         tot_bytes_written = 0;
         PRINT_Log("Writing to %s...\n", FILENAME_W);
         do {
            bytes_written = FILE_Write(fdw, UserBuffer, MAX_BUFFER_SIZE);
            tot_bytes_written += bytes_written;
         } while (tot_bytes_written < WRITE_SIZE);
         FILE_Close(fdw);
         PRINT_Log("Write completed\n");
      } else {
         PRINT_Log("Could not open file %s\n", FILENAME_W);
         return;
      }
      FILE_Close(fdr);
} else {
      PRINT_Log("Could not open file %s\n", FILENAME_R);
      return;
}
}

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