Does the HAL support MMC?

vrouesnel · ‎2015-05-11

Posted on May 12, 2015 at 01:12

So in `SD_PowerON` there is a comment at the bottom that says `/* else MMC Card */`. `hsd->CardType` is never set to `MULTIMEDIA_CARD` which is defined in `stm32f4xx_hal_sd.h`, and read in `HAL_SD_WideBusOperation_Config`.  I have generated a project in the Cube and changed the `Mode` of `SDIO` to `eMMC 4 bits wide`, but it doesn't seem any different to the SD version.  Here is the function for reference:-  /**
* @brief Enquires cards about their operating voltage and configures clock
* controls and stores SD information that will be needed in future
* in the SD handle.
* @param hsd: SD handle
* @retval SD Card error state
*/
static HAL_SD_ErrorTypedef SD_PowerON(SD_HandleTypeDef *hsd)
{
SDIO_CmdInitTypeDef sdio_cmdinitstructure; 
__IO HAL_SD_ErrorTypedef errorstate = SD_OK; 
uint32_t response = 0, count = 0, validvoltage = 0;
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);
/* Enable SDIO Clock */
__HAL_SD_SDIO_ENABLE();
/* CMD0: GO_IDLE_STATE -----------------------------------------------------*/
/* No CMD response required */
sdio_cmdinitstructure.Argument = 0;
sdio_cmdinitstructure.CmdIndex = SD_CMD_GO_IDLE_STATE;
sdio_cmdinitstructure.Response = SDIO_RESPONSE_NO;
sdio_cmdinitstructure.WaitForInterrupt = SDIO_WAIT_NO;
sdio_cmdinitstructure.CPSM = SDIO_CPSM_ENABLE;
SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure);
/* Check for error conditions */
errorstate = SD_CmdError(hsd);
if(errorstate != SD_OK)
{
/* CMD Response Timeout (wait for CMDSENT flag) */
return errorstate;
}
/* CMD8: SEND_IF_COND ------------------------------------------------------*/
/* Send CMD8 to verify SD card interface operating condition */
/* Argument: - [31:12]: Reserved (shall be set to '0')
- [11:8]: Supply Voltage (VHS) 0x1 (Range: 2.7-3.6 V)
- [7:0]: Check Pattern (recommended 0xAA) */
/* CMD Response: R7 */
sdio_cmdinitstructure.Argument = SD_CHECK_PATTERN;
sdio_cmdinitstructure.CmdIndex = SD_SDIO_SEND_IF_COND;
sdio_cmdinitstructure.Response = SDIO_RESPONSE_SHORT;
SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure);
/* Check for error conditions */ 
errorstate = SD_CmdResp7Error(hsd);
if (errorstate == SD_OK)
{
/* SD Card 2.0 */
hsd->CardType = STD_CAPACITY_SD_CARD_V2_0; 
sdtype = SD_HIGH_CAPACITY;
}
/* 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);
/* Check for error conditions */
errorstate = SD_CmdResp1Error(hsd, SD_CMD_APP_CMD);
if(errorstate != SD_OK)
{
return errorstate;
}
/* Send CMD41 */
sdio_cmdinitstructure.Argument = SD_VOLTAGE_WINDOW_SD | sdtype;
sdio_cmdinitstructure.CmdIndex = SD_CMD_SD_APP_OP_COND;
sdio_cmdinitstructure.Response = SDIO_RESPONSE_SHORT;
sdio_cmdinitstructure.WaitForInterrupt = SDIO_WAIT_NO;
sdio_cmdinitstructure.CPSM = SDIO_CPSM_ENABLE;
SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure);
/* Check for error conditions */
errorstate = SD_CmdResp3Error(hsd);
if(errorstate != SD_OK)
{
return errorstate;
}
/* Get command response */
response = SDIO_GetResponse(SDIO_RESP1);
/* Get operating voltage*/
validvoltage = (((response >> 31) == 1) ? 1 : 0);
count++;
}
if(count >= SD_MAX_VOLT_TRIAL)
{
errorstate = SD_INVALID_VOLTRANGE;
return errorstate;
}
if((response & SD_HIGH_CAPACITY) == SD_HIGH_CAPACITY) /* (response &= SD_HIGH_CAPACITY) */
{
hsd->CardType = HIGH_CAPACITY_SD_CARD;
}
} /* else MMC Card */
return errorstate;
}

Note: this post was migrated and contained many threaded conversations, some content may be missing.

Aaron Pica · ‎2016-10-11

Posted on October 11, 2016 at 17:45

Hi Craig,

thank you for your contribution. I'm trying to use an eMMC with the STM32F7 using your method but I'm not able to found your modifications to stm32f4xx_hal_sd.c (there is no ''for eMMC'' results in the attached file).

Did you attached the correct version?

Thank you!

Nemui Trinomius · ‎2017-01-19

Posted on January 20, 2017 at 02:13

Dear all,

I found MMC(and eMMC) support added on newest CubeF7V1.6.0!

http://www.st.com/en/embedded-software/stm32cubef7.html

And sdcard HAL driver was revised overall from former one.

Gid Rid · ‎2017-02-03

Posted on February 03, 2017 at 12:09

Dear All,

I'm just getting into this problem too as I need to support an eMMC with the STM32F7. What I have found so far:

1. The drivers in STM32CubeF7 1.6.0 seem to be the same as what is in STM32CubeMX 4.19.0

2. There is a HAL 'driver' for MMC in those libraries, but you cannot enable it in the GUI.

3. There is no user level layers between the HAL MMC driver and FATfs, i.e. no 'bsp_driver_mmc.c' or 'mmc_diskio.c'.

4. The HAL driver for MMC does not support memories over 2GB.

5. The HAL driver for MMC may not ever have been used or even compiled, as it has inconsistencies in function names.

I am currently working my way through all this. I have had some success by writing the missing bits, but still have some issues to fix. Card initialisation seems to work stepping through with the debugger but fails at full speed, and I also get errors when trying to write a file.

Nemui Trinomius · ‎2017-02-03

Posted on February 03, 2017 at 15:04

Dear Gideon Riddell,

Because of 1~5 reasons you suggest(especially 4!) ,I dare to use old v1.5.0 SD HAL driver.

For detail, see this entry.

https://community.st.com/0D50X00009Xkh8DSAR

Best Regards,

Nemui.

Gid Rid · ‎2017-02-03

Posted on February 03, 2017 at 15:21

Hi Nemui,

Thanks for the tip.

Did you use it with an SDcard or eMMC?

Regards,

Gideon

Nemui Trinomius · ‎2017-02-04

Posted on February 04, 2017 at 09:27

Dear Gideon Riddell,

I confirmed many SDCards and some MMC&eMMCv5 on the STM32F746G/769I-Discoveries.

Nomal size standard SD was confirmed with SD->MicroSD Aadapter.

http://www.hwtools.net/ExtenderBoard/EXTF.html

eMMC was confirmed with Odroid's eMMC to MicroSD Adapter(up to 4bit,8bit cannot applicable).

http://www.hardkernel.com/main/products/prdt_info.php?g_code=G145628097465

Best Regards,

Nemui.

Lukasz Przenioslo · ‎2018-05-11

Posted on May 11, 2018 at 14:49

Hi

Riddell.Gideon

‌

I know this is an old topic, but did you by any chance solve the problems you are describing? I have come to the exact same conclusions, even though over a year passed since your post.

Gid Rid · ‎2018-05-21

Posted on May 21, 2018 at 11:50

Nemui Trinomius is the only code I found that works. There is hope that the STM32H7 supporting eMMC 4.5 will result in improvements to the HAL library and CubeMX.

Tesla DeLorean · ‎2018-05-21

Posted on May 21, 2018 at 17:25

https://community.st.com/0D50X00009XkhQ7SAJ

I'm working on getting the H7 MMC driver working, in the mean time I do have the F4 stuff working having implemented the CMD1/CMD2/CMD3 startup, and CMD7/CMD8 EXTCSD capacity detection. The regular CSD reports 1GB media with the Samsung 16GB and 32GB modules and this needs to be replaced with the values from the EXDCSD. There is a bunch of wrong headed code in ST's implementation which breaks the block addressing for cards it believes are 2GB or less.

I have furnished

Przenioslo.Lukasz

with the modified files I'm working with on the STM32F412G-DISCO board, along with the ODROID modules and adapters.

The 32GB Samsung is eMMC 5.1

http://www.samsung.com/semiconductor/estorage/emmc/KLMBG2JENB-B041/

If someone wants to sponsor some 64GB and 128GB ODROID cards I will test those.

FatFs Testing (68300)

00200000 2097152 1.00 GB GetCardCSD

03A3E000 12 GB 54 GB EXTCSD

00000000 : FA B8 00 10 8E D0 BC 00-B0 B8 00 00 8E D8 8E C0 ................

00000010 : FB BE 00 7C BF 00 06 B9-00 02 F3 A4 EA 21 06 00 ...|.........!..

00000020 : 00 BE BE 07 38 04 75 0B-83 C6 10 81 FE FE 07 75 ....8.u........u

00000030 : F3 EB 16 B4 02 B0 01 BB-00 7C B2 80 8A 74 01 8B .........|...t..

00000040 : 4C 02 CD 13 EA 00 7C 00-00 EB FE 00 00 00 00 00 L.....|.........

00000050 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

00000060 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

00000070 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

00000080 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

00000090 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

000000A0 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

000000B0 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

000000C0 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

000000D0 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

000000E0 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

000000F0 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

00000100 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

00000110 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

00000120 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

00000130 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

00000140 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

00000150 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

00000160 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

00000170 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

00000180 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

00000190 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

000001A0 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

000001B0 : 00 00 00 00 00 00 00 00-53 FD ED 3C 00 00 00 20 ........S..<...

000001C0 : 21 00 0C 71 21 10 00 08-00 00 00 00 04 00 00 00 !..q!...........

000001D0 : 01 20 83 98 8B CD 00 08-04 00 00 E0 AB 00 00 00 . ..............

000001E0 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................

000001F0 : 00 00 00 00 00 00 00 00-00 00 00 00 00 00 55 AA ..............U.

00000000 : EB 3C 90 6D 6B 66 73 2E-66 61 74 00 02 04 01 00 .<.mkfs.fat.....

00000010 : 02 00 02 00 00 F8 00 01-3F 00 FF 00 00 00 00 00 ........?.......

00000020 : 00 00 04 00 80 00 29 67-68 AA 52 62 6F 6F 74 20 ......)gh.Rboot

00000030 : 20 20 20 20 20 20 46 41-54 31 36 20 20 20 0E 1F FAT16 ..

00000040 : BE 5B 7C AC 22 C0 74 0B-56 B4 0E BB 07 00 CD 10 .[|.'.t.V.......

00000050 : 5E EB F0 32 E4 CD 16 CD-19 EB FE 54 68 69 73 20 ^..2.......This

00000060 : 69 73 20 6E 6F 74 20 61-20 62 6F 6F 74 61 62 6C is not a bootabl

00000070 : 65 20 64 69 73 6B 2E 20-20 50 6C 65 61 73 65 20 e disk. Please

00000080 : 69 6E 73 65 72 74 20 61-20 62 6F 6F 74 61 62 6C insert a bootabl

00000090 : 65 20 66 6C 6F 70 70 79-20 61 6E 64 0D 0A 70 72 e floppy and..pr

000000A0 : 65 73 73 20 61 6E 79 20-6B 65 79 20 74 6F 20 74 ess any key to t

000000B0 : 72 79 20 61 67 61 69 6E-20 2E 2E 2E 20 0D 0A 00 ry again ... ...