Jetson Orin Nano developer board. Uart1 is right on the 40 pin header for easy connection, why not uart 0, or 2? How can you connect wires to Uart0, what is needed? Is it easier to change the debug uart to use as a serial port for your program? How? Don’t want to add any more serial USB plugin adapters (have a few already).
UART’S have assigned function based on use cases supported. Refer to Carrier board design files for schematics, layout, component assembly top/bottom view etc…https://developer.nvidia.com/downloads/assets/embedded/secure/jetson/orin_nano/docs/jetson_orin_nano_devkit_carrier_board_reference_design_files_a04_20230320.zip/
UART2 level shifted (3V3) signals are available on the Button Header J14. You could add jumper wires as appropriate which meet your needs of no soldering . For example https://uk.farnell.com/multicomp-pro/mp006283/jumper-wire-kit-male-to-female/dp/3617771?gross_price=true&CMP=KNC-GUK-GEN-SHOPPING-PLA&gad_source=1&gclid=EAIaIQobChMI4OCxi8HLjAMVZ4lQBh1oEBWXEAQYASABEgJny_D_BwE
Thanks, but this info was already stated in the question…for UART0, what can you readily get/order to make the UART0 connection (connector, test lead, ect)? For UART2, the pins are easily accessed, but how do you configure Jetson/Ubuntu so it is not a debug port, but instead a serial port for your running program to use to send/rcv characters?
You may be able to buy M.2 passive adapter converter module available from some vendors and this could help provide relatively easy access to the UART pins on the M2. connector, if this is what you need. For example, https://www.zebax.com/doc/ZX1/ZX122BX-M2-NGFF-PCISIG.pdf
Sorry that debug UART is for debug purpose only.
It works on /dev/ttyTCU0, which means Tegra Combined UART and it would output debug messages from several firmwares. If you want to use it as normal UART, you have to disable them from each firmware. We’ve not verified this use case and don’t suggest user to do that since you might also get unstable UART communication.
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