USB Servo Controller conected to PC

Rob311

This has to have come up before, but i cant find it.

I'm trying to connect my USB PSC to my pc and control it from VB or even Hyperterminal, but I can't figure out the code. How do I translate:
ch=0
ra=7
pw=1250
"!SC", ch, ra, pw.LOWBYTE, pw.HIGHBYTE, CR
to a hyptertermial output? I've been able to use the !SCVER? and get a response, so I know its not a com issue.

Mike Green

Each of the items separated by commas produce a single byte. ch is a byte. ra is a byte. pw.LOWBYTE is the low order 8 bits of the 16 bit value pw. pw.HIGHBYTE is the high order 8 bits of the 16 bit value pw. You also need the carriage return character at the end (CR).

If you're typing them by hand using Hyperterminal, you can often use the control key to get small values. Control-@ is a zero byte. Control-A is a one byte, etc.

Rob311

I cant find any information in my hyperterminal help files about byte size... could you show me the string that you would type to have it move?

Franklin

Here is an ascii table www.asciitable.com/ Hyperterminal, although free is not a good terminal program for sending non text codes. I like a program called realterm.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
- Stephen