Good Morning to everybody,
I'm opening a new post not to get information but to leave a trace about the PATCH command. I've had a hard time changing the polarity of my T3-mini (TTL to RS232) and searching the web didn't help a lot. Hope this will be a legacy for futur users.
This information is a complement to Argent Data's Wiki. The main problem is the syntax of the Hex string. On the Wiki, is say's to send PATCH 005FFF01XX (where XX is a binary code for Tx and Rx polarity). The main problem I've faced is that all letters should be lower case (no upper case as written in the Wiki). I've juggeled for 2 days trying to change my tracker config. I've also us
ed the old Hex code (002FFF01XX) that is prior to firmware 56398.
If you own a T3-Mini board and want to invert Tx, Rx or Both, the easyest way is by sending a command as an APRS message, followed by a reset (software or hardware). You can also do it in console mode on the USB port or by the Serial port (if already configure as you want).Here's all the command with their functions :
PATCH 005fff0100 : no inverted Tx or Rx (TTL mode)
PATCH 005fff0102 : Inverted Rx (Rx RS232, Tx TTL)
PATCH 005fff0104 : Inverted Tx (Rx TTL, Tx RS232)
PATCH 005fff0106 : Inverted Tx and Rx (RS232 mode for both).
T (unplug the board after receiving ack) or send as a command.
If you send these commands as APRS messages, don't forget to add CMD before any commands. If you don't, the tracker will ignore the instructions.
Hope these informations may help someone on the future and save them headache as I got the past 2 days.
73 and keep playing with these fantastic modules.
Posted by: ve2onr-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org