Quick follow up on the H-bridge. I'm now running an external 14 Pin DIP clock at 4 Mhz.,100ppm. I ran the communications test program by adding the folowing ASM
DEVICE PIC16F628, XT_OSC
DEVICE PIC16F628, CPD_OFF
DEVICE PIC16F628, PROTECT_OFF
This makes the MCS come up right on without double checking everything.
The comm. test ran perfectly. The motor did the same routine....a little hum. I ran the motor supply volts up some to the bridge and one time it picked up one of the speeds, ? go figure? ,nothing after this one time event. I added character pacing of 1000, no change. I think I'll experiment with some different pacing values before moving into the USART. For those out there having unusal wierd problems with compiler errors when their code is exactly the same as a previous good program, I have found that there may be a glitch between going from one computer to another (different operating systems) with files on a 3 1/2 floppy. Maybe I have some bad disks although the formats were clean. Is the latest version of MCS OK or does the BETA need a little more BETTER? Later JS