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

Note:

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

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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