Accessing the SoC from UART
Before using UART on the host system:
Install Foundation package
Install these packages on the host system:
sudo apt-get install p7zip-full
sudo apt-get install dpkg-dev
Software Setup on the Linux Host
Connect the USB cable from USB 2 Port on Tegra to the host system.
Setting Up and Configuring Minicom
For detailed information, see using Minicom.
1. If Minicom is not installed, install it with the command.
sudo apt-get install minicom
2. Configure Minicom on the host as follows.
sudo minicom –s
3. From the configuration dialog, select Serial Port Setup.
4. Define the configuration as follows:
Serial Device: /dev/ttyUSB0
Lockfile location: /var/lock
Bps/Par/Bits: 115200 8N1
Hardware Flow Control: No
Software Flow Control: No
5. Save the setup as the default setup.
6. Launch Minicom for a specific device using the –D option.
sudo minicom –D /dev/ttyUSB2
ttyUSB2 for Xavier A
ttyUSB6 for Xavier B
ttyUSB3 for AURIX
7. Query the serial devices on the host system with the command.
dmesg | grep ttyUSB