how to enable the spi of jetson xavier NX
时间: 2024-04-08 11:29:14 浏览: 16
To enable the SPI (Serial Peripheral Interface) on the Jetson Xavier NX, you can follow these steps:
1. Open a terminal on the Jetson Xavier NX.
2. Edit the device tree file using a text editor. For example, you can use the following command to open the file with the Nano text editor:
```
sudo nano /boot/extlinux/extlinux.conf
```
3. Locate the line that starts with `APPEND` and add the following parameter at the end of the line:
```
spidev.bufsiz=65536
```
This parameter sets the buffer size for the SPI driver.
4. Save the changes and exit the text editor.
5. Reboot the Jetson Xavier NX for the changes to take effect:
```
sudo reboot
```
6. After rebooting, you can verify that SPI is enabled by running the following command:
```
ls /dev/spidev*
```
If SPI is enabled, you should see a list of SPI devices.
Please note that enabling SPI may require additional steps depending on your specific use case or configuration. Make sure to consult the official documentation or relevant resources for more detailed instructions if needed.