Matrix _16f877 need help, please

[Archangel]

hi, Joe and Steve,
thanks for your concern. I tried testing but no thing happen. is it possible the two capacitors of the osc-xtal is the main problem.

I saw in the data sheet, for the Hs (20Mhz) xtal osc, the capacitors are range 15-33pF. but i use only 10uF! (table 14-2 page 144 of the data sheet).

µ is Way bigger than pf Way too big !10µF will oscillate in kilohertz, not mhz.