leo

GREAT! Very many thanks, it works ok. I always used for my programs 10 MHz xtals and XT option . I didn't notice the existence of HS option. For me XT meant xtal (any xtal !). Now I am experimenting midi filter/processor. I do PIC programming, so I should easily achieve simple MIDI processing . Bye, Leo.

I need help! PIC16F877-20 does not oscillate at 20 MHz. I tried many chips and xtals. At 10 MHz they all oscillate. At 10 Mhz ,however, there is no output:Midi in is present at input pins, but out pin is always at high level.(output is connected to a midi device).I should expect some kind of wrong timed midi signal, but level is always high. I use for programming MPLAB ICD and the hex file provided by T.Klose.. Something maybe wrong in programming?(programming options,watchdog, memory 0000-1FFF, etc?). Thanks,Leo