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Thread: SDMMC004 without card detect signal

  1. #1
    Andy
    Guest

    SDMMC004 without card detect signal

    Hi,

    If "Card Detection Signal" SDCD is unchecked on the UIEditor then the code seems to still look for a signal on P1.10.

    I have added:

    SET_BIT( SDMMC->HOST_CTRL,SDMMC_HOST_CTRL_CARD_DET_SIGNAL_DETECT_ Pos );

    to SDMMC004_HostControllerInit(), I'm not sure if this is the correct/best place, and it now seems OK.

    Kind regards

    Andy

  2. #2
    New Member New Member fraenky is on a distinguished road
    Join Date
    Mar 2015
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    113.75
    I'm using FATFS App which uses SDMMC_BLOCK App and this behavior cost me a few hours…

    @Infineon: can you please fix that, so that when no card detection is used, the bits are set by the app.

    I'm not sure if this is the correct/best place, and it now seems OK.
    I put
    SET_BIT(SDMMC->HOST_CTRL, SDMMC_HOST_CTRL_CARD_DET_SIGNAL_DETECT_Pos);
    SET_BIT(SDMMC->HOST_CTRL, SDMMC_HOST_CTRL_CARD_DETECT_TEST_LEVEL_Pos);
    after DAVE_Init(), so that a code generation doesn't remove it

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