BG77xA-GL TE-B v1.2 Test Points description

IoT Modules LPWA Module
1

Hello,
I’m using a V1.2 TE-B board and I would like to know where the Main UART Rx/Tx are located. I want to connect the Main UART to my test MCU directly and that’s why I need the Main UART Rx/Tx before the voltage level translator (or maybe after). There is an RXD and TXD pins but without the schematic I don’t know if it will work without a trial. I found the VDD_EXT and I can connect it to my voltage-level translator. The user manual mentions the UART RXD and TXD pins which are inside the J06014 Test Points. Is there any description about these test points?

Thank you in advance!
Mat

2

I got the answer: The main UART is reachable via the RXD TXD pins inside the J06014 Test Points. Tested and it’s working with my own voltage level translator + MCU.

3

I have sent you the reference design manual of TE-B via email. It might be of greater help to you.

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