Multi servo interrupt program in Mikro Basic converting to PBP

[richard]

the original code cycles through 8 servos 2.5ms at a time to give a refresh rate for each servo of 2.5*8 ms (20ms) , the standard servo refresh rate.
won't your code of 1 servo try to refresh every 2.5 ms ------ the servo won't like that.
also the flakey timing of oninterrupt will probably give you a twitchy servo .
dt ints would be more stable
4mhz won't allow for much resolution for servo commands too, I seem to recall dismal results from similar efforts years ago a twitchy servo is apitb

[mark_s]

I am experimenting with this version that uses ccp1 and ccp2. It works really well. It can run 8 servos with a 1uS resolution at 8mhz. What I found important is using a separate power supply for the motors and the pic. Once I started loading the motors, the current could spike over 1 amp and this was resetting the pic and or feeding back into the adc. This caused twitchy and erratic movements.

The code in this link will not compile until you add a underscore to the variable in the assembly line. I hope to also port this to PBP

http://www.mikroe.com/forum/viewtopi...7&hilit=+servo