Hi,
I'm having a strange problem with inconsistent timing using pauseus. I wrote the following test program:
and tested it, substituting for the following X,Y pairsCode:define OSC 08 osccon = %01110010 for i = 1 to 10 high statusled for j = 1 to X pauseus Y next j low statusled for j = 1 to X pauseus Y next j next i
1000,5000
2500,2000
5000,1000
10000,500
25000,200
For Y=2000 and above, I get exactly what I expect: an LED flashing
once a second for 10 seconds. For lower parameters to pauseus, however
i get the following results:
1000,5000 -> 10s
2500,2000 -> 10s
5000,1000 -> 5s
10000,500 -> 2.6s
25000,200 -> 1.0s
pauseus is meant to work down to 12 us for my 8mhz clock, according to
the PicBasic manual: can anyone suggest what might be wrong, or what
tests I might run to narrow it down?
Mark
Bookmarks