I am extremely new to PIC programming. I bought the 8048 Programmer and experiment board and have been playing around now for over a week. I am using a PIC12F629. All of a sudden it gives me the “NO PIC ON BOARD…” error when I try to program it. I first thought that I “locked” the chip by enabling the Code Protection, but apparently I should still be able to access it. I am also new to electronics, so this is quite a nightmare, but I really want to learn how to do it. I was actually not going on too bad when this happened.
sorry to hear you are having problems with your k8048. If you can provide more info as to what you were experiencing BEFORE you ran into this problem, maybe Velleman can help you out.
E.G.
“I have been using the K8048 for about a week or so and have successfully ran the demos on the 16F627, without any problems. I have now switched to the 12F629 PIC and since I have programmed the following code to the chip:…”
(Your code here…use the ‘Code’ tags to show what you flashed to the PIC)
“…the board can no longer see the PIC.”
“It was working fine with previous code, until I loaded the above.”
Is it possible that your code has re-configured GP0 through to GP5, and this is the reason the K8048 is not seeing the PIC?
I’m sure I configured GP4 as CLKOUT and that is when the problem started. When the switch is in PROG mode, LD2 stays on. Can someone tell me what pins are read for the programmer to know whether or not there is a PIC in the board, or what voltages are read or whatever. I did look at the link, thanks, but it did not help. I tried with both programs to erase or program, but not one sees the PIC. I think it has something to do with OSCCAL as well. Thanks for the reply.
