Code programming error at 0000
I've been trying to program the 16f84a with the epic plus and the zif adapter.
i'm using a 19.3V DC power supply with plenty of current.
I have a previously programmed chip that somebody gave me, and a blank chip as well. when i "blank check" the programmed chip, EPICwin says it's blank.
i get the "Code programming error at 0000" error when i try to program the blank one.
the only problems i can think of is that i'm using a 25 to 9 pin cable, and then and adapter from 9 to 25 because i don't have a male to female 25 cable.
also, there are 3 pairs of jumper pins on the zif, the bottom 2 are jumped, 8-18 pin, exactly how the zif adapter came in the mail.
i've tried programming the chips on the epic board without using the zif, but i get the same results...
any suggestions or help?
Microcode Studio Circuit Sample
Hi friend,
I´m using the MicroCode Studio circuit which is shown in their Bootloader´s help file, and it works perfect with my really old notebook.
regards
Sérgio
Re: Code programming error at 0000
Hi miragabe,
In most programmers the MCLR pin will go to about 13 volts only during programming (for just a few seconds after clicking the program button). Are you able to program any other PIC or is it just a particular PIC18F458 giving trouble?
Re: Code programming error at 0000
Hi Shahidali55,
Thanks for your response. Been on this project now for quite some time, and needless to say it has been very frustrating. This is the first PIC I've been given to work with, to get a noritake VFD to come on. When I downloaded the EPIC WIN program and set the board and port voltages to 16V and 5V respectively, the programs uploaded, according to the run response; now it doesnt. The program bar tells me it erases and blank checks, but this error pops up on programming. Is there some kind of limit to the number of times the chip can be programmed? I would think not. I mean like I even rewired everything from scratch according to the program, powered up and still nada.
What do you make of that?
Dave.
Re: Code programming error at 0000
...Another thing, I monitored the MCLR pin while the blankcheck was taking place during programming, and it never got up to the 13 V expected; it stayed at about 5V.