I am trying to program an 18f2550 through icsp and I am not having any luck. I am using a willem dual power programmer with it's icsp header and I have my pic on a breadboard. I have seen several circuits that are supposed to be required for icsp, I have tried most of them and did not get anywhere. I keep getting an error message, error program memory at 0x000000. I have also tried several different chips and keep getting the same error. I am running winxp with the porttalk driver installed.
What program are you using for programming(I.E. windows software)? It sounds like you just arent communicating with either the programmer or the PIC.
I have tried winpic, winpic800, and willem eprom 97jc. All three of these have given me the same result.
did you make sure you got these voltages on these pins: VPP = 12 -> ~13V VDD = 5v VSS = 0 also try grounding PIN 26 to bypass Low voltage programing mode
I am getting the right voltages, what should I have on the target board? Right now I just have the pic and nothing else.
Deflater Mouse: he says that the target board has just the processor and nothing else i dont know whats the problem with your programmer brianmy
This is the first time I have tried to do this so it's hard to tell what I am missing. This is the third different programmer I have tried and I have gotten the same results.
i think you need to have the Vdd and Vss lines powering/grounding the pic itself, not just the programmer. edit: nevermind, i didn't realize what type of programmer you were using. edit #2: did you try the software on this page? http://www.xenocron.com/willem/
That is one of the three or four I have tried. I am communicating between the PC and programmer I think my problem lies between the programmer and pic. I double checked my voltages and I am getting 12.34v coming from vpp and 5.1v on vdd.
