Posted on January 02, 2015 at 14:28My STM32F429 board uses Kingston 4GB uSDHC card. CubeF4v1.3.0 HAL init fails in
SD_PowerON() function in stm32f4xx_hal_sd.c
/* Send CMD55 */
sdio_cmdinitstructure.Argument = 0;
sdio_cmdinitstructure.CmdIndex = SD_CMD_APP_CMD;
SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure);
/* Check for error conditions */
errorstate = SD_CmdResp1Error(hsd, SD_CMD_APP_CMD);
/* If errorstate is Command TimeOut, it is a MMC card */
/* If errorstate is SD_OK it is a SD card: SD card 2.0 (voltage range mismatch)
or SD card 1.x */
if(errorstate == SD_OK)
{
/* SD CARD */
/* Send ACMD41 SD_APP_OP_COND with Argument 0x80100000 */
while((!validvoltage) && (count < SD_MAX_VOLT_TRIAL))
{
/* SEND CMD55 APP_CMD with RCA as 0 */
sdio_cmdinitstructure.Argument = 0;
sdio_cmdinitstructure.CmdIndex = SD_CMD_APP_CMD;
sdio_cmdinitstructure.Response = SDIO_RESPONSE_SHORT;
sdio_cmdinitstructure.WaitForInterrupt = SDIO_WAIT_NO;
sdio_cmdinitstructure.CPSM = SDIO_CPSM_ENABLE;
SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure);
I check SD_CMD and SD_CLK with oscilloscope:
1) 400kHz clock starts,
2) CMD0 then CMD8 sent
3) 200usec no response
4) CMD55 send (payload 0)
5) response after 4 clk cycles: 0x 37 00 80 01 20 04
which is CMD55 response, CRC is x04
If I stop at the breakpoint (red line in code),
errorstate variable
contains 15: SD_COM_CRC_FAILED.
For me CRC 0000100 seems to be fine for that message, I don't know why ''errorstate'' fails, but init won't continue with AMCD41...
I've tried it with other 8GB Kingston microSD HD...same thing.
Any idea what can cause this?
#sd-card-init
