Jetson AGX Orin

Robotics & Edge Computing Jetson Systems Jetson AGX Orin
8

hello matthew141,

here’s an example of DTS changes, please add below device tree node in kernel dtb

pps {
gpios = <&tegra_aon_gpio TEGRA194_AON_GPIO(AA, 0) GPIO_ACTIVE_LOW>;
compatible = “pps-gpio”;
assert-falling-edge;
status = “okay”;
};

here’re steps for your reference.

  1. Set CONFIG_PPS_CLIENT_GPIO=m.
  2. Make sure that it is set in tegra_defconfig as well
  3. Build, and manually copy device tree blob to target.
  4. After adding the PPS GPIO with insmod, /dev/pps1 should shown