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Associate III
August 29, 2024
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SDMMC1 SD Card card initialization failure in STM32H757 i-EVAL Board

  • August 29, 2024
  • 1 reply
  • 1657 views

Hello,

we bought a STM32H757 i-EVAL and I started to play with it. So I chose the board in STMCUBE MX (version 6.12.0) and selected the default configuration. After compiling code which went well, it got stuck in the MX_SDMMC1_SD_Init function, with the following error: HAL_SD_ERROR_UNSUPPORTED_FEATURE,
So after reviewing couple of posts here, i figured out that there is a mistake in auto-generated codes from Cube, so I changed "hsd1.Init.TranceiverPresent " to SDMMC_TRANSCEIVER_PRESENT instead of SDMMC_TRANSCEIVER_NOT_PRESENT. Here Sd init function now:

 

 

 hsd1.Instance = SDMMC1;
 hsd1.Init.ClockEdge = SDMMC_CLOCK_EDGE_RISING;
 hsd1.Init.ClockPowerSave = SDMMC_CLOCK_POWER_SAVE_DISABLE;
 hsd1.Init.BusWide = SDMMC_BUS_WIDE_4B;
 hsd1.Init.HardwareFlowControl = SDMMC_HARDWARE_FLOW_CONTROL_DISABLE;
 hsd1.Init.ClockDiv = 0;
 hsd1.Init.TranceiverPresent = SDMMC_TRANSCEIVER_PRESENT;

 

To be honest, it seemed solved the problem but after couple of tests, it again crashes with the same error.
Any help would be highly appreciated. ( I have attached my .ioc file for reference)

Amir

    Best answer by mƎALLEm

    Hello,

    Try first to run the native example working on STM32H747I-EVAL board provided in the STM32CubeH7 in here: https://github.com/STMicroelectronics/STM32CubeH7/tree/master/Projects/STM32H747I-EVAL/Applications/FatFs/FatFs_Dual_Instance

    At least to validate your SDcard.

    1 reply

    mƎALLEm
    mƎALLEmBest answer
    Technical Moderator
    August 30, 2024

    Hello,

    Try first to run the native example working on STM32H747I-EVAL board provided in the STM32CubeH7 in here: https://github.com/STMicroelectronics/STM32CubeH7/tree/master/Projects/STM32H747I-EVAL/Applications/FatFs/FatFs_Dual_Instance

    At least to validate your SDcard.

    "To give better visibility on the answered topics, please click on ""Accept as Solution"" on the reply which solved your issue or answered your question."