Here is a trick to help troubleshoot BotBoard/SSC-32 communication. It would be nice to be able to see the commands being sent to the SSC-32 from the BotBoard (or other device using a TTL-level interface.) Here is how to do that using the RS232 converter on the SSC-32.
Looking at the serial communication pins on the SSC-32, next to the DB9 connecter, we have (in ASCII-art):
o o o
o o
TX RXThe 3 pins on top are for TTL-level communication with a BotBoard. The 2 pins below that connect to the RS232 converter on the SSC-32. The pin labeled TX connects to the RS232 transmitter. If you want to monitor the commands sent to the SSC-32, then construct a Y-cable so you can connect the serial data from the BotBoard to the RS232 transmitter.
o @ o
@ o
TX RX
The 2 pins labeled “@” need jumpered together and connected to the BotBoard serial output. Then connect your PC to the DB9 connector on the SSC-32, start Lynxterm (or your favorite terminal program), set to the appropriate Baud rate, and you can see everything sent to the SSC-32.
Mike
