Pi-TNC no received data showing

[5ft24]

Hi All,
Have 40 years of Electronics construction, troubleshooting and repair. Have even built a working saltwater fishtank controller that the PI controls with some surface mount components, so I'm no stranger to PCB's. I built my TNC-Pi last weekend, and have it set up on my Model B. It's hooked to a Baofeng UV-B5. I can xmit fine, and the HT is picking up a good bit of APRS traffic. DCED LED is coming on good with each received signal. However, regardless of whether I set it up as i2c or serial, xastir doesn't show anything, and not even in the TNC data logs. I have also used axlisten, and I get absolutely nothing there as well. Have gone over the board multiple times with a magnifying glass looking for any cold solder joints, bridges etc and everything looks good. Even re-flowed every joint on the board just in case. Checked every IC to make sure I had no bent pins etc...
Any suggestions?
Thanks

[w8dev]

I'm having the same issue. I can transmit fine, but my TNC-Pi doesn't display any data when I run axlisten -a (except data I transmit). I have verified data is reaching the TNC by way of a trace tool, I can hear audio over the RX pin of the DB9. Any help would be greatly appreciated.

Adam

[KV4LQ]

I'm assuming you are using a terminal type program to access your TNC. Try using minicom. I don't think it comes stock with the Pi, but you should be able to get by typing

Code: Select all

sudo apt-get update; sudo apt-get install minicom

Try that and if it doesn't work, I would ask the manufacturer.

[w8dev]

I'm just trying to use the default axlisten from the create/install guide of the TNC-Pi. I will give minicom a try though.

Adam
W8DEV