this is my device tree， spi@c260000 { compatible = “nvidia,tegra186-spi-slave”; /compatible = “nvidia,tegra234-spi-slave-cnt-mode”;/ spi-max-frequency = <50000000>; status = “okay”; spi@0 { compatible = “tegra-spidev”; reg = <0x0>; spi-max-frequency = <50000000>; controller-data { nvidia…

Can you try using the tool provided in the below comment ? Follow the steps mentioned. [image] Jetson Nano trouble using SPI Jetson Nano Could you verify by attached tool. sudo mv spidev_test.txt spidev_test sudo chmod +x spidev_test

Spi slave problem ，the received information cannot exceed 256 bytes

Autonomous Machines Jetson & Embedded Systems Jetson AGX Orin

va11 March 10, 2023, 10:44am 15

Can you try using the tool provided in the below comment ? Follow the steps mentioned.