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Originally Posted by fowlerm
The other pins on the Vex's serial port are control lines RTS and CTS, and the actual line that puts the controller in program state (similar to what the program button does for the other IFI controllers. I used a 25' 6-conductor telethone cable from RadioShack (part #279-422) and then put a button on the module that will put the controller in program state.
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If you don't mind, what pins did you use for the program button? I assume you tied either pin 4 or pin 6 to either ground or +5. Also, does the switch need to be a constant on/off or does it need a momentary switch similar to the "hotsync" button on a PalmOS pda?
I'm obviously not very familiar with the hardware, so I appreciate your help. Now that you have a working programmer, could you post a schematic of some sort?
~Ben
Additional realizations:
The color / pin number correlation depends on which end of the phone cord you're looking at. In the above pinout, looking at the end of the phone cable with the little springy catch on top, which side is the white wire?
Assuming pin one is on the left and is white, I'm also seeing +5v on pins 1, 4 and 6. Also, the "program" LED on my board is on. Is that normal?