OVMS3-idf/components/driver/include
Ivan Grokhotkov 6baf8195ee sdmmc: add support for high speed (HS) mode
By default SD cards are initialized in default speed (DS) mode. Enabling
HS mode requires SWITCH_FUNC command to be sent twice: first time to
query if the card supports switching to HS mode, second time to perform
the switch.

This change implements SWITCH_FUNC command and adds the procedure to
switch to HS mode.
2017-08-16 18:59:04 +08:00
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driver sdmmc: add support for high speed (HS) mode 2017-08-16 18:59:04 +08:00