Hi There=20 I have built a Propic 2 compliant Programmer located at: = www.geocities.com/mpu51/ with Propic XP software I tried to program a = 16F84 and later a 16F877A to test the programmer. It reads but it cant = program. I have verified the Vpp programming voltages. All passed. I = just could not understand why it fails to program. I also observe that during programming phase LM7805 = and the switch mode Power supply IC get overheated. After programming = phase they get cooler... Is it normal? Can anybody help me with this? I have to make it run because I am a = student and to complete my project I need this programmer With my best regards =DDhsan -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu