Quote Originally Posted by simpsonss View Post
hi MARGARITA,

seems like it works with 20 Mhz, i would like to ask a question. I'm facing the same problem as you too. everything works find with 4Mhz OSC but no for 20 Mhz OSC. what u mean by parallel with power supply? i should i connect the circuit?

thanks.
I FOLLOW INSTRUCTIONS FROM JOE, SKIMASK AND PUT 1000MF CAPACITOR IN PARALLEL WITH 5 VOLTS SWITCHING POWER SUPPY, (SOME ARE POOR FILTERED ) MY WAS ONE.
AND UNTIL NOW MY PROJECT WORKS FINE.