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Use dedicated GPIOs in examples to show how to emulate a UART, I2C and SPI bus. (Using assembly and C)
39 lines
1.2 KiB
Plaintext
39 lines
1.2 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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config EMULATE_SPI_GPIO_CLOCK
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int "GPIO pin for SPI Clock"
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range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
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default 0 if IDF_TARGET_ARCH_RISCV
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default 16
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help
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GPIO pin number to be used as emulated SPI Clock.
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config EMULATE_SPI_GPIO_MOSI
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int "GPIO pin for SPI MOSI"
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range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
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default 2 if IDF_TARGET_ARCH_RISCV
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default 17
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help
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GPIO pin number to be used as emulated SPI MOSI (Master Out Slave In).
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config EMULATE_SPI_GPIO_CS
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int "GPIO pin for SPI Chip Select"
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range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
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default 3 if IDF_TARGET_ARCH_RISCV
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default 18
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help
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GPIO pin number to be used as emulated SPI Chip Select.
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config EMULATE_SPI_GPIO_MISO
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int "GPIO pin for SPI MISO"
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range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
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default 4 if IDF_TARGET_ARCH_RISCV
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default 19
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help
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GPIO pin number to be used as emulated SPI MISO (Master In Slave Out).
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endmenu
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