Jags + BDC-Comm: Solid yellow the first time, blinking every consecutive attempt.

[jgregoire]

We are trying to configure jaguars from previous years using BDC-Comm. The first attempt is always a success:

1: Power on robot (with terminator, and 6P6C-DB9 connected to laptop)
2: Open BDC-Comm
3: Connection successfully established. We control the motors and assign a new address.

However, if I disconnect from that jag, (to move onto the next one, say) and try to connect to it again sometime later, the LED stays blinking yellow and refuses to go steady. I can't establish communications with the Jag, and if I try to assign a new address, the LED never blinks green.

Whether trying to talk to a single jag, or a full chain, we still have the same issue.

We are having this issue with jags on two different robots. All are black jags w/ firmware version 107. The DB9 adapter is plugged into the correct port on the jag.

Variables tested:
-Different terminators
-Different 6P6C adapters (also terminated, 100R, green to red)
-Different jags
-Different laptops
-Different versions of BDC-Comm (TI and Vex Pro)
-Cycled robot power between attempts.

I presume we're doing something wrong. As far as I can tell we are following the instructions to the tee as laid out in the Jaguar User Manual posted on the FRC resources page.

My thanks for any ideas.

[jgregoire]

Well we think we resolved the issue tonight. TI recommends a specific baud rate for BDC-Comm. 115k, I think. We had to set this manually in the USB-RS232 adapter settings on the laptop.

Out of the six, however, one Jaguar is still exhibiting this annoying behavior.