fanstel blg840F not sending at comment reply

RE: fanstel blg840F not sending at comment reply

Ariel19 — Tue, 21 Oct 2025 01:31:39 GMT

Thanks a lot, Asbjørn! Your questions really help me see things more clearly. Pokerogue

RE: fanstel blg840F not sending at comment reply

Asbjørn — Thu, 19 Jun 2025 08:06:18 GMT

Hello Thanu,

Q3: There's nothing more in the log from the nRF91?

Q4: Do you have a log from the nRF52?

Q5: Which pins are you using on both nRF91 and nRF52 for the UART on the schematic and which pins are you configuring in code?

Best regards

Asbjørn

RE: fanstel blg840F not sending at comment reply

Thanu — Tue, 17 Jun 2025 19:59:06 GMT

Thank you for your reply

1. nrf91 is running on at_client firmware , it's works perfectly .. I don't have oscillioscope, unfortunately I can not check .

2. I can not check as I did not have oscillioscope.

3. Yes I've enabled the RTT logger .. and get the output log

RE: fanstel blg840F not sending at comment reply

Asbjørn — Tue, 17 Jun 2025 18:32:19 GMT

Hello Thanu,

I'd like to ask some basic question initially just to be sure. Are you able to program both of these devices separately? They are powered up and code is running on them? Can you see for example that the stack pointer is moving?

Q1: You are sending commands from the nRF52, are you sure they are sent in the expected way? Are you able to see the command activity with an oscillioscope?

Q2: Are you getting or seeing any signal coming out of the nRF91 indicating that it is listening or rejecting incoming commands?

Q3: It seems you have enabled RTT, is that on both the nRF52 and nRF91, what is it printing?

Best regards

Asbjørn