Bruce, I suffered the exact same problem trying to program a 12C671. Built a JDM programmer and this happened. Then bought one, same problem. Built another type of JDM, no luck. Gave up and bought a Microchip PicKit1 Flash starter kit - glad I did. USB programmer and it programs a range of 8/14 pin flash devices (not like the crappy one time programmable jobbies!) --- In , "bruce_shurtz" <bruceshurtz@c...> wrote: > Hi, > > I am new to pics and programming so please bear with me. > > I am trying to program a 508a with a simple morse code program and > here is what happens. > > I am using icprog v. 105c with the 508 dll included, and I have a > JDM programmer. > > I open icprog > > I set device to 12c508a > > I set osc to internal rc (which is what I want) > > I load the hex file into icprog > > I press program all > > icprog reads the config and then comes up with the following > warning:"no oscillator value found. Do you want to use value from > file (0fffh) instead?" > > Whether I press yes or no it continues on and says programming code. > > Then it comes up with the error: "failed to verify at address 0000h. > > What am I doing wrong? > > Any help would be greatly appreciated. > > Thanks, > > Bruce |