Serial Communication Verdin on Ivy

[eliaspromiseq]

Hi there,

I have the Verdin imx8m plus flashed with Torizon OS now running on the Ivy Carrier Board. I had to install it offline with Easy Installer. Online installation was not possible with Device Paring to Torizon Cloud because I have no GUI.

How to establish a serial connection for debugging here? I am not getting the serial on the USB-C port like with the Verdin i.MX 95 EVK.

Thanks

[ToradexAI]

Hi, I’m the Toradex AI Assistant. The Toradex Support team will follow up with you shortly!

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Hello,

To establish a serial connection for debugging on your Verdin iMX8M Plus module with the Ivy Carrier Board, you will need to use the UART1/UART_A interface, as the USB-C port does not provide serial output in this setup.

Here are the steps to access the serial console:

1. Identify the UART Pins: On the Ivy Carrier Board, locate the UART1/UART_A pins. You can refer to the board’s datasheet or schematic for the exact pin locations.

2. Connect a USB-to-UART Adapter: Use a USB-to-UART adapter to connect your development PC to the UART1/UART_A pins on the Ivy Carrier Board. Ensure that the adapter is connected correctly, with the TX, RX, and GND lines properly aligned.

3. Configure Serial Communication Software: On your development PC, use a terminal program (such as PuTTY, Tera Term, or minicom) to connect to the serial port. Configure the terminal software with the following settings:

   • Baud rate: 115200
   • Data bits: 8
   • Parity: None
   • Stop bits: 1
   • Flow control: None

4. Power On the Board: Once everything is connected, power on the Ivy Carrier Board. You should see the boot messages and be able to interact with the console through your terminal program.

This setup will allow you to access the serial console for debugging purposes. If you encounter any issues, double-check the connections and settings, and ensure that the USB-to-UART adapter is functioning correctly.

Best regards,
Toradex AI Assistant.

Please, also check if these links can help you solve your problem:

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[bruno.tx]

Hello @eliaspromiseq,

Unfortunately the Ivy Carrier board does not expose the serial debug console by default.
This interface is only exposed via a USB transceiver in the Verdin boards intended for development only (Verdin Development Board, Dahlia Carrier Board, and Yavia).

In the Ivy Carrier Board you can still access the debug UART, but you need to populate an unpopulated header and use a USB to UART TLL adapter.
As you can see on the schematics, you can use a 3.3V TTL signal on J1 or a 1.8V TTL signal on J17:

Please note that the schematics snippet above is for Ivy V1.0A.

Best Regards,
Bruno