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Raspberry Pi 3 + TNC-Pi issue with serial port

[email protected] #9311 Hello, A few years ago I installed a BBS on a Raspberry with a TNC-Pi2. Unfortunatly my SD card died recently and I had to re-install all. I follow the last version of the documentation available on but I'm not able to get "pitnc_getparams"? working (Raspberry Pi3 B). - I installed Raspbian Stretch (2019-04-08-raspbian-stretch-lite.img) - I set the Serial port as mentioned (serial login shell disable/serial interface enable). - Then I downloaded the the pitnc_get/set_param binaries, made them executable and launch "./pitnc_getparams /dev/serial0 0"? but it is constantly "retrying..." . - Just in case I tried with ttyAMA0 but it is not better... I also tried to follow the note mentioned in the documentation "Note added 12/4/2018" but it is not working better, I even try with Raspbian version with the GUI, still the same... Now I don't know where to search to troubleshoot the issue, if you have some advices to guide me, they are welcome :-) Thank you
Levi Anderson All Messages By This Member #9312 I had a similar problem, and realized that I forgot to activate the serial port in rasbpi-config.? That is where I would start.? YMMV and good luck OM 73 de KD8SKZ, Levi
Steve KC1AWV All Messages By This Member #9313 Try these steps: Disable Bluetooth Insert dtoverlay=pi3-disable-bt into /boot/config.txt Disable hciuart systemctl disable hciuart Disable serial getty systemctl disable serial-getty@... Reboot Raspberry Pi systemctl reboot When Pi is back on, try running the pitnc programs as root or use sudo Steve KC1AWV toggle quoted message Show quoted text On Thu, Oct 10, 2019 at 12:04 PM <js8call@...> wrote: Hello, A few years ago I installed a BBS on a Raspberry with a TNC-Pi2. Unfortunatly my SD card died recently and I had to re-install all. I follow the last version of the documentation available on but I'm not able to get "pitnc_getparams"? working (Raspberry Pi3 B). - I installed Raspbian Stretch (2019-04-08-raspbian-stretch-lite.img) - I set the Serial port as mentioned (serial login shell disable/serial interface enable). - Then I downloaded the the pitnc_get/set_param binaries, made them executable and launch "./pitnc_getparams /dev/serial0 0"? but it is constantly "retrying..." . - Just in case I tried with ttyAMA0 but it is not better... I also tried to follow the note mentioned in the documentation "Note added 12/4/2018" but it is not working better, I even try with Raspbian version with the GUI, still the same... Now I don't know where to search to troubleshoot the issue, if you have some advices to guide me, they are welcome :-) Thank you -- Steve Miller KC1AWV
[email protected] #9314 Thank you very much for your fast answers. Unfortunately it is still not working. I will continue investigations, I hope I'll be able to post there the solution... 73
James Johnson All Messages By This Member #9315 I have the same problem with Pi 3 and a Pi 4. James VE7HJ toggle quoted message Show quoted text From: js8call@... To: "RaspberryPi-4-HamRadio" <[email protected]> Sent: Thursday, October 10, 2019 12:40:36 PM Subject: Re: [RaspberryPi-4-HamRadio] Raspberry Pi 3 + TNC-Pi issue with serial port Thank you very much for your fast answers. Unfortunately it is still not working. I will continue investigations, I hope I'll be able to post there the solution... 73
Bob AF9W Member Profile All Messages By This Member #9316 I had a problem that pitnc_getparams would not work if the ax.25 service was running. Since I have ax.25 set to autostart, I have to stop the service before I run pitnc_getparams. -- Bob AF9W
[email protected] #9321 Still not solved, always investigating :-(

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