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17 lines
557 B
Plaintext
17 lines
557 B
Plaintext
menu "Example Configuration"
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config SDIO_DAT2_DISABLED
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bool "Disable the DAT2 in SDIO slave"
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default y
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help
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SDIO slave DAT pin is unfortunately the same pin as MTDI, which
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controls the flash power voltage. For 3.3v flash devkits / modules /
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kits, it conflicts with the DAT2 pullups required by the
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specification.
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This disables the peripheral input from the DAT2 so that we can work
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in 1-bit mode when DAT2 is floating (pulled down). 4-bit mode is
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therefore unavailable.
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endmenu
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