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SPI 异步回环测试

注： 示例来源于官方。 注： 这是一个失败的示例，SDK 配置没有生效。

配置 SDK

# SPI Configuration
#
# CONFIG_SPI_MASTER_IN_IRAM is not set
CONFIG_SPI_MASTER_ISR_IN_IRAM=y
# CONFIG_SPI_SLAVE_IN_IRAM is not set
CONFIG_SPI_SLAVE_ISR_IN_IRAM=y
# end of SPI Configuration

# ============= 调整为以下配置 =============

# SPI Configuration
#
# CONFIG_SPI_MASTER_IN_IRAM is not set
# CONFIG_SPI_MASTER_ISR_IN_IRAM is not set
# CONFIG_SPI_SLAVE_IN_IRAM is not set
# CONFIG_SPI_SLAVE_ISR_IN_IRAM is not set
# end of SPI Configuration

引脚

  • SCLK GPIO6
  • SDI GPIO2
  • SDO GPIO7
  • CS_1 GPIO10
  • CS_2 GPIO3
  • 连接 SDI 和 SDO 引脚

执行指令

cargo run -r -p spi_loopback_async