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| author | Chris Wilson <chris@wilson.house> | 2019-08-01 19:54:32 -0700 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2019-08-08 12:53:05 +1000 |
| commit | 3d02ebb4e8262b67433eadc80100155387c6f186 (patch) | |
| tree | 3d15c94395644dacfa349ab5c2359491539dccaa /ports/stm32/mpconfigboard_common.h | |
| parent | efdcd6baa710af11bdc2f4930e42e439cc1b2ff8 (diff) | |
| download | micropython-3d02ebb4e8262b67433eadc80100155387c6f186.tar.gz micropython-3d02ebb4e8262b67433eadc80100155387c6f186.zip | |
stm32/sdcard: Support configuring the SD/MMC bus width to 1 or 4 bits.
Some SD/MMC breakout boards don't support 4-bit bus mode. This adds a new
macro MICROPY_HW_SDMMC_BUS_WIDTH that allows each board to define the width
of the SD/MMC bus interface used on that board, defaulting to 4 bits.
Diffstat (limited to 'ports/stm32/mpconfigboard_common.h')
| -rw-r--r-- | ports/stm32/mpconfigboard_common.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/ports/stm32/mpconfigboard_common.h b/ports/stm32/mpconfigboard_common.h index 121b64d038..603215af4b 100644 --- a/ports/stm32/mpconfigboard_common.h +++ b/ports/stm32/mpconfigboard_common.h @@ -102,6 +102,11 @@ #define MICROPY_HW_ENABLE_MMCARD (0) #endif +// SD/MMC interface bus width (defaults to 4 bits) +#ifndef MICROPY_HW_SDMMC_BUS_WIDTH +#define MICROPY_HW_SDMMC_BUS_WIDTH (4) +#endif + // Whether to automatically mount (and boot from) the SD card if it's present #ifndef MICROPY_HW_SDCARD_MOUNT_AT_BOOT #define MICROPY_HW_SDCARD_MOUNT_AT_BOOT (MICROPY_HW_ENABLE_SDCARD) |