in file Jetson_AGX_Devkit_Pinmux_Configuration_Template.xlsm
about pin A56 (SPI1_MISO) Customer Usage list:
SPI1_DIN means it only works in Master Input mode? and how can i set it work in slave mode?
the same question about SPI1_MOSI, and SPI2, SPI3.
There’s no different for the master and slave mode.
Have a check below topic to check the SPI configure can verify it working first.
For the slave mode just need to configure the device tree to add below property.
compatible = “nvidia,tegra210-spi-slave”;
you mean SPI whether in master or slave mode, pinmux selection always like this:
SPI1_MISO —> SPI1_DIN
SPI1_MOSI —> SPI1_DOUT
direction —> Bidirectional