microSD card problem

[rwmao]

Posted on December 10, 2016 at 22:07

I am testing the microSD card. The weird thing is that it works well in debug mode, but doesn't work in normal mode.

I set the breakpoint to a line at the very end in debug mode, before which the operation of microSD card is done. In debug mode, it works very well. But when I quit the debug mode, the sd card doesn't work. 

I am using keil, uvision as the IDE. The chip is STM32F405RGT6;

What should I do?

[Tesla DeLorean]

Posted on December 12, 2016 at 20:41

Watch timing and clocks. Pins and peripherals the debugger enables for it's own usage.

Add diagnostic or telemetry output

(info to USART) 

from SDIO related code, review that output/time in Debug vs Regular execution.

Review signalling on logic analyzer

[rwmao]

Posted on January 13, 2017 at 03:12

Update.

I tested it is not because if it is in the debug mode.

Here is the procedure I tested:

1. I turned on the board. The program runs into an error ( I set to light up RED led if anything is wrong).

2. I reset the stm32 chip by short the NRST pin to ground while I keep the power of the board ON. The chip is reseted. the program has gone through without problem (write file and read file) by lighting up green led.

What should I do for next step?Apparently it is not because of clock. 

Thanks

[Oliver Beirne]

Posted on December 13, 2016 at 16:24

Hi

mao.rongwei

I have moved this post to the

https://community.st.com/community/stm32-community/stm32-forum?sr=search&ampsearchId=1f075d14-1117-4f25-85a1-96ea3fb8cda9&ampsearchIndex=0

where product related questions are posted.

Thanks

Oli

[rwmao]

Posted on January 13, 2017 at 03:21

The original post was too long to process during our migration. Please click on the provided URL to read the original post. https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I6rB&d=%2Fa%2F0X0000000bwo%2FXwiQUFZIzGsZz.cMMQ7EcQUxg86SJV.LwGZ6vdxtde8&asPdf=false

[rwmao]

Posted on January 14, 2017 at 02:48

The original post was too long to process during our migration. Please click on the provided URL to read the original post. https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I6mH&d=%2Fa%2F0X0000000bvA%2FblDvQvUA2rIsvDPQPIJcLbxO8aQFrIMkHooDRbR76Eo&asPdf=false

[rwmao]

Posted on January 15, 2017 at 20:24

I dig into the problem step by step:

error happens in:

DSTATUS SD_initialize(BYTE lun)
{
 Stat = STA_NOINIT;
 /* Configure the uSD device */
 if(BSP_SD_Init() == MSD_OK)
 {
 Stat &= ~STA_NOINIT;
 }
return Stat;
}�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?

Error happens in BSP_SD_Init(). With further dig, it bump into :

HAL_SD_ErrorTypedef HAL_SD_Init(SD_HandleTypeDef *hsd, HAL_SD_CardInfoTypedef *SDCardInfo)
{ 
 __IO HAL_SD_ErrorTypedef errorstate = SD_OK;
 SD_InitTypeDef tmpinit;
/* Allocate lock resource and initialize it */
 hsd->Lock = HAL_UNLOCKED;
 /* Initialize the low level hardware (MSP) */
 HAL_SD_MspInit(hsd);
/* Default SDIO peripheral configuration for SD card initialization */
 tmpinit.ClockEdge = SDIO_CLOCK_EDGE_RISING;
 tmpinit.ClockBypass = SDIO_CLOCK_BYPASS_DISABLE;
 tmpinit.ClockPowerSave = SDIO_CLOCK_POWER_SAVE_DISABLE;
 tmpinit.BusWide = SDIO_BUS_WIDE_1B;
 tmpinit.HardwareFlowControl = SDIO_HARDWARE_FLOW_CONTROL_DISABLE;
 tmpinit.ClockDiv = SDIO_INIT_CLK_DIV;
/* Initialize SDIO peripheral interface with default configuration */
 SDIO_Init(hsd->Instance, tmpinit);
/* Identify card operating voltage */
 errorstate = SD_PowerON(hsd);
if(errorstate != SD_OK) 
 {
 return errorstate;
 }
/* Initialize the present SDIO card(s) and put them in idle state */
 errorstate = SD_Initialize_Cards(hsd);
if (errorstate != SD_OK)
 {
 return errorstate;
 }
/* Read CSD/CID MSD registers */
 errorstate = HAL_SD_Get_CardInfo(hsd, SDCardInfo);
if (errorstate == SD_OK)
 {
 /* Select the Card */
 errorstate = SD_Select_Deselect(hsd, (uint32_t)(((uint32_t)SDCardInfo->RCA) << 16));
 }
/* Configure SDIO peripheral interface */
 SDIO_Init(hsd->Instance, hsd->Init);
return errorstate;
}�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?

The problem happens in /* Identify card operating voltage */

errorstate = SD_PowerON(hsd); ; returns SD_COM_CRC_FAILED.

Any idea?

[rwmao]

Posted on January 15, 2017 at 22:43

found the problem. The hal file generated by cubemx has a bug(maybe not really).

https://community.st.com/0D50X00009XkeRpSAJ

suggests the solution.

In the file:\Drivers\STM32F4xx_HAL_Driver\Src\stm32f4xx_hal_sd.c,

find the function,

SD_PowerON, move HAL_Delay(1); behind the clock enable.

Problem solved.

static HAL_SD_ErrorTypedef SD_PowerON(SD_HandleTypeDef *hsd){ SDIO_CmdInitTypeDef sdio_cmdinitstructure; __IO HAL_SD_ErrorTypedef errorstate = SD_OK; uint32_t response = 0U, count = 0U, validvoltage = 0U; uint32_t sdtype = SD_STD_CAPACITY; /* Power ON Sequence -------------------------------------------------------*/ /* Disable SDIO Clock */ __HAL_SD_SDIO_DISABLE(); /* Set Power State to ON */ SDIO_PowerState_ON(hsd->Instance); /* 1ms: required power up waiting time before starting the SD initialization sequence */ // HAL_Delay(1); //should be after __HAL_SD_SDIO_ENABLE() /* Enable SDIO Clock */ __HAL_SD_SDIO_ENABLE();//moved to here /* 1ms: required power up waiting time before starting the SD initialization sequence */ HAL_Delay(1);�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?