Post by thread:crestal problem

Hi to all engineers. i was using picmaster emulator with small board to drive some LED's. on the board i used 4 mhz crystal with 22pf caps. every thing was fine with emulator after i programmed and used otp did not work. in configuration line i used XT oscillator. when i put it on demo board works ok but demo board using can type of oscillator. i did not have extra crystal to try. my question is since pic works with can oscillator it doesn't work with crystal do you thing this crystal was bad or i did some thing wrong. I am using ready board made by microengineering lab. it is nice looking board i never seen any problem with it. any idea? Andre