stm32f7xx qspi 扇区读写？？？

hpdell · 发表于 2016-11-9 09:29:57

本帖最后由 hpdell 于 2016-11-9 09:48 编辑

大神们好，

请教下 stm32f7xx 开发板上的 qspi 读写功能，我在测试时一次写入 8192 个字节数据，但是出现后面的4096字节的数据不对，前面的4096字节数据完全正常，

请问这是什么情况啊？？

另外还有个什么4字节地址，到底是个什么意思啊  ？？

读写函数如下：

u32 cc, QspiAddr_RW  ;

  {
static uint8_t i = 0;

for(cc=0;cc<8192;cc++)
{
   uart_tx_buff[cc] = i * 2;
   i ++;
}
  }

  if(QSPI_EraseSector( 4 * 4096 ) != QSPI_OK)
printf("QSPI Erase Sector Error ... ... = %d\r\n", cc);
  else
printf("QSPI Erase Sector OK ** ... ... = %d\r\n", cc);

  if(QSPI_EraseSector( 5 * 4096 ) != QSPI_OK)
printf("QSPI Erase Sector Error ... ... = %d\r\n", cc);
  else
printf("QSPI Erase Sector OK ** ... ... = %d\r\n", cc);

  QspiAddr_RW = (uint32_t)((uint32_t)(4)*4096UL + 0);

  printf("QSPI Write 8192 Begin ... ...\r\n");
  QSPI_WriteBuff((uint8_t*) &uart_tx_buff[0],  (uint32_t)(QspiAddr_RW ), 8192);

  QspiAddr_RW = (uint32_t)((uint32_t)(4)*4096UL + 0);
  printf("QSPI Read  8192 Begin ... ...\r\n");
  QSPI_ReadBuff((uint8_t*) &uart_rx_buff[0],  (uint32_t)(QspiAddr_RW ), 8192);

  printf("QSPI Read  8192 End ... ...\r\n");

  if( Buffercmp_8(&uart_tx_buff[0], &uart_rx_buff[0], 8192) == 0)
printf("QSPI Data Read Write Auto Erase Sector OK ...! *** 1\r\n");
  else
printf("QSPI Data Read Write Auto Erase Sector Er ...? *** 1\r\n");