> Dear Piclist, > Can anyone give me some pointers to using the RTCC interrupt on the > 16C84? > This is how I've got it set up so far. > > ; for a 2.4576MHz crystal, 2457600/256=9600 > ; load rtcc with 96 giving 100 interrupts/sec The embedded control handbook is wrong. The RTCC counts at the instruction cycle frequency rather than the oscillator frequency. > Have I missed something? I seem to get interrupts much faster than I > should. Four times too fast, I think you'll find. > Many thanks. > > /\/\att. Ray. -- Computing Officer, MRC Research Centre in Brain and Behaviour, Department of Experimental Psychology, Oxford University