2018-07-04 23:01:03 +00:00
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menu "Example Configuration"
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2019-05-09 14:43:06 +00:00
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config EXAMPLE_SDIO_OVER_SPI
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2018-08-23 12:43:07 +00:00
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bool "Host use SPI bus to communicate with slave"
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default n
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help
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If this is set, the host tries using SPI bus to communicate with slave.
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Otherwise, the standarad SD bus is used.
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2019-05-09 14:43:06 +00:00
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config EXAMPLE_SDIO_4BIT
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2019-01-25 16:10:53 +00:00
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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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2019-05-09 14:43:06 +00:00
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depends on !EXAMPLE_SDIO_OVER_SPI
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2019-01-25 16:10:53 +00:00
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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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2019-05-09 14:43:06 +00:00
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config EXAMPLE_SDIO_HIGHSPEED
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2019-01-25 16:10:53 +00:00
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bool "Host tries using HS mode to communicate with slave"
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default y
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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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2019-12-24 07:57:44 +00:00
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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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2019-01-25 16:10:53 +00:00
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choice EXAMPLE_SLAVE
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2019-09-19 14:51:22 +00:00
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prompt "GPIO to control slave EN in Espressif master-slave board."
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2019-01-25 16:10:53 +00:00
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default EXAMPLE_SLAVE_NONE
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help
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2019-09-19 14:51:22 +00:00
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If Espressif master-slave board is used, select the correct GPIO to control slave's EN.
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2019-01-25 16:10:53 +00:00
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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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2018-07-04 23:01:03 +00:00
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2018-08-23 12:43:07 +00:00
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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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2019-09-19 14:51:22 +00:00
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default n
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2018-08-23 12:43:07 +00:00
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help
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Slave power control pin is negtive active, otherwise postive active
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2018-07-04 23:01:03 +00:00
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endmenu
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