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NAND flash mode break the microSD configuration #69

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bvernoux opened this issue Dec 30, 2016 · 0 comments
Closed

NAND flash mode break the microSD configuration #69

bvernoux opened this issue Dec 30, 2016 · 0 comments
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@Baldanos

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@bvernoux
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NAND flash mode break the microSD configuration:

  • When we enter in Nand Flash Mode and we exit microSD does not work anymore like command sd ls ...
    The problems comes from flash_data_mode_input() and also flash_data_mode_output() which use 16 GPIO => PC0 to PC15 instead of only 8bits (PC0 to PC7) as PC8 to PC12 are used/reserved for microSD/SDIO mode see HydraBus_1_0_pins.pdf for more details.

  • Also it will be great to restore all GPIO state/configuration when we exit NAND Flash mode in flash_cleanup()
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@bvernoux @Baldanos