Another simple program misbehaving

[mister_e]

What happen if you change your High & red definition with

Red         var LATB.5
Green       var LATB.4

[Luckyborg]

What happen if you change your High & red definition with

Red         var LATB.5
Green       var LATB.4

...magically all my problems seem to go away now. I've never needed to use LATX before. Maybe you can educate me a little on why I needed to this time. The datasheet seems to imply that writing to the latch is just a more direct way of writing to the port, but maybe I'm not catching the nuance.

Thanks
David

[mister_e]

You should also do it with PIC18 and with all PIC having LATx register. This is to avoid the R-M-W issue. The datasheet explain it, like you said. For further details you may want to have a look at this document

http://www.cornerstonerobotics.org/c...mw_problem.pdf