kopia lustrzana https://github.com/espressif/esp-idf
121 wiersze
4.2 KiB
Plaintext
121 wiersze
4.2 KiB
Plaintext
menu "Example Configuration"
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orsource "$IDF_PATH/examples/common_components/env_caps/$IDF_TARGET/Kconfig.env_caps"
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choice EXAMPLE_SDIO_INTERFACE
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prompt "Interface to communicate with slave"
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default EXAMPLE_SDIO_OVER_SDMMC
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help
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There are two interfaces to communicate with the SDIO slave: SDMMC and SPI.
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The SDMMC interface is 8 times faster than the SPI interface. However not all Espressif chips have this
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interface.
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Alternatively you can use the SPI interface.
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config EXAMPLE_SDIO_OVER_SDMMC
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bool "SDMMC host"
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depends on SOC_SDMMC_HOST_SUPPORTED
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config EXAMPLE_SDIO_OVER_SPI
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bool "SPI"
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depends on IDF_TARGET_ESP32
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endchoice
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config EXAMPLE_SDIO_4BIT
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bool "Host tries using 4-bit mode to communicate with slave"
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default n
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depends on !EXAMPLE_SDIO_OVER_SPI
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help
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If this is set, the host tries using 4-bit mode to communicate with
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slave. If failed, the communication falls back to 1-bit mode.
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If this is not set, the host uses 1-bit mode. However, CMD1 is still
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mandatory for interrupts.
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Note that 4-bit mode is not compatible (by default) if the slave is
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using 3.3V flash which requires a pull-down on the MTDI pin.
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config EXAMPLE_SDIO_HIGHSPEED
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bool "Host tries using HS mode to communicate with slave"
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default y
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depends on EXAMPLE_SDIO_OVER_SDMMC
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help
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If this is set, the host tries using high-speed mode to communicate
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with slave. If the slave doesn't support high-speed mode, the
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communication falls back to default-speed mode. If this is not set,
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the host uses DS mode.
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If the example does not work, please try disabling the HS mode.
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config EXAMPLE_ADJUSTABLE_PIN
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bool
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default EXAMPLE_SDIO_OVER_SPI || SOC_SDMMC_USE_GPIO_MATRIX
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config EXAMPLE_PIN_CMD
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int "CMD (MOSI) GPIO number"
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depends on EXAMPLE_ADJUSTABLE_PIN
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range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
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default 15
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config EXAMPLE_PIN_CLK
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int "CLK GPIO number"
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depends on EXAMPLE_ADJUSTABLE_PIN
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range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
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default 14
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config EXAMPLE_PIN_D0
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int "D0 (MISO) GPIO number"
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depends on EXAMPLE_ADJUSTABLE_PIN
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range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
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default 2
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config EXAMPLE_PIN_D1
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int "D1 (INTR) GPIO number"
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depends on EXAMPLE_ADJUSTABLE_PIN
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range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
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default 4
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config EXAMPLE_PIN_D2
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int "D2 GPIO number"
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depends on EXAMPLE_ADJUSTABLE_PIN
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range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
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default 12
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config EXAMPLE_PIN_D3
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int "D3 (CS) GPIO number"
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depends on EXAMPLE_ADJUSTABLE_PIN
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range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
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default 13
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choice EXAMPLE_SLAVE
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prompt "GPIO to control slave EN in Espressif master-slave board."
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default EXAMPLE_SLAVE_NONE
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help
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If Espressif master-slave board is used, select the correct GPIO to control slave's EN.
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config EXAMPLE_SLAVE_NONE
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bool "Not using Espressif master-slave board."
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config EXAMPLE_SLAVE_B1
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bool "Using slave B1"
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endchoice
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config EXAMPLE_SLAVE_PWR_NEGTIVE_ACTIVE
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bool "Slave power control pin is negtive active, otherwise postive active"
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depends on !EXAMPLE_SLAVE_NONE
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default n
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help
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Slave power control pin is negtive active, otherwise postive active
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config EXAMPLE_NO_INTR_LINE
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bool "The host is not connected to the interrupt line (DAT1) of slave"
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default n
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help
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If this is set, the host example will not check the interrupt line but poll slave
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registers to see whether the slave has interrupts for the host.
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Working without the interrupt line may increase the CPU load of the host, and do harm
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to the response speed to slave events, though can save 1 GPIO for other purposes in
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non-4-bit mode.
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endmenu
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