I am using Dahlia Carrier Board v1.0 with Verdin iMX8MP Q 4GB WBIT module.
I have noticed the Debug Port must be connected to a host for the board to become operational.
The schematic (page 18 Revision V1.0) shows VBUS of Debug Port is used to power this subsystem. I am guessing this is a requirement for proper operation.
Question:
- Is this needed for a custom design of a carrier board?
- What is the purpose of such a power arrangement?
I am doing the design of a custom design and for debug purposes UART3 and UART4 are connected to headers.
Thanks,
Oscar.
Hi @oscar.medina,
In order to help you better with your problem, could you please share more information with us?
- Which version of your Dahlia Carrier Board are you using? v1.0A, v1.1A…
- Which OS and version are you using? BSP, Torizon…
- Do you really need to use UARTs 3 and 4? By default, UART3 is used to communicate with Cortex-M7.
Please, take a look at this article: Verdin Product Family Specification Update | Toradex Developer Center
There you can find relevant information about modifications between the version of the family that you’re using.
Best regards,
Hiago.