geetansh gmail.com> writes: >=20 > Configuration Fuses: > Word 1: 3F73 RC NOWDT PUT BROWNOUT NOLVP NOCPD NOWRT NODEBUG NOPROT= ECT >=20 Looks like the problem is in configuration fuses: You have crystal osc, but fuses are for RC oscillator. So, the PIC has random frequency due to paras= itic capacitance, but not using the crystal. Change config to XT and see how it goes. Good luck,=20 Sergey Dryga http://beaglerobotics.com =20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .