I appreciate you all taking the time to read and respond. I have recently put together 2 TNC-PI's. These are my first real attempt at putting together a kit. (My last one was over 10 yrs ago and only a little LED Christmas Tree)
I finally hooked up a radio yesterday but don't have any joy. I am going to list what I have done here. I also only have a multi-meter for test equipment.
I picked up an OLD Yaesu CAT-2500 yesterday at a local hamfest. The radio works and I am able to transmit and receive on it no problem.
I wired up what I believe are the connectors from the 4 pins on the TNC PI. (1,3,5,6) to the radio.
When I key up the radio I do hear a tone on another radio I have with both TNC-Pi's.
When I send a packet on one of my other setups (TH-72A or PK-88/Radio combo) I see the yellow light come on.
I tried: sudo minicom -b 19200 -o -D /dev/ttyAMA0
and got some squiggles but no one ones appeared at all when packets came in.
Minicom also showed offline.
The yellow light does not always come on when a packet happens.
I tried: sudo minicom -b 19200 -o -D /dev/ttyAMA0 I didn't see any data.
minicom also showed off line.
I do the kiss attach /dev/ttyAMA0 1 10.1.1.1 and it says "AX.25 port 1 bound to device ax0"
sudo axlisten -a : nothing comes across.
axcall 1 KA3WUT-4 : No red light, no keying up.
dwc_otg.lpm_enable=0 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait
# The format of this file is:
# name callsign speed paclen window description
1 KA3WUT-1 19200 236 2 TNC 1
KA3WUT-4 is my PK-88
KA3WUT-7 is my TH72
I have seen where some folks are saying listen to pin 6 of a chip? What chip is that and how does one do that? If a normal headset I assume I need to have one 1 of the headset set to pin 6 (I assume 1 is top left of a chip?) Does anything else need to be connected to the headset and if so what?
I can take photos of my boards front and back if that would be helpful?
I am up for suggestions/ideas/help.
-Ryan (KA3WUT Chantilly, VA)