esp-idf/examples/peripherals/sdio/host/main/Kconfig.projbuild
2019-12-03 22:58:43 +08:00

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menu "Example Configuration"
config EXAMPLE_SDIO_OVER_SPI
bool "Host use SPI bus to communicate with slave"
default n
help
If this is set, the host tries using SPI bus to communicate with slave.
Otherwise, the standarad SD bus is used.
config EXAMPLE_SDIO_4BIT
bool "Host tries using 4-bit mode to communicate with slave"
default n
depends on !EXAMPLE_SDIO_OVER_SPI
help
If this is set, the host tries using 4-bit mode to communicate with
slave. If failed, the communication falls back to 1-bit mode.
If this is not set, the host uses 1-bit mode. However, CMD1 is still
mandatory for interrupts.
Note that 4-bit mode is not compatible (by default) if the slave is
using 3.3V flash which requires a pull-down on the MTDI pin.
config EXAMPLE_SDIO_HIGHSPEED
bool "Host tries using HS mode to communicate with slave"
default y
help
If this is set, the host tries using high-speed mode to communicate
with slave. If the slave doesn't support high-speed mode, the
communication falls back to default-speed mode. If this is not set,
the host uses DS mode.
If the example does not work, please try disabling the HS mode.
choice EXAMPLE_SLAVE
prompt "GPIO to control slave EN in Espressif master-slave board."
default EXAMPLE_SLAVE_NONE
help
If Espressif master-slave board is used, select the correct GPIO to control slave's EN.
config EXAMPLE_SLAVE_NONE
bool "Not using Espressif master-slave board."
config EXAMPLE_SLAVE_B1
bool "Using slave B1"
endchoice
config EXAMPLE_SLAVE_PWR_NEGTIVE_ACTIVE
bool "Slave power control pin is negtive active, otherwise postive active"
depends on !EXAMPLE_SLAVE_NONE
default n
help
Slave power control pin is negtive active, otherwise postive active
endmenu