...hmm I'm quite new in this area and I have a problem with a pic programmer that I got from the link given below .

http://www.circuitsonline.net/circuits/view.php?id=91

and I'm using a pic16f84-04 as the schematic suggests. To program the pic I've used the IC prog from "http://www.ic-prog.com/"

And my problem is when ever I try to burn my hex code in to the pic i get this error. Verify failed at address 0000h !

i'm kind of skeptical to the programmer as it is so simple...maybe it doesnt work..?? I dont know could anyone help me..
by the way i'm using winxp,amd 2000xp+

Thanks in before hand

 

i've also tried IC-prog and i think that your problem is a software problem.

I think you can fix your problem by installing som additional drivers.

another good and very easy programmer that I'm using right now is Picup
http://www.studorg.liu.se/admittansen/picsy/

It has worket pefekt for me with the pic16f84a chip.

 

Thanks mate the page was swedish but luckily I'm a swed so that was easily sorted... I tried the Picup programmer same thing it failed writing to the pic.

Could anyone perhaps suggest a very simple pic programmer with as few wires and componets as possible..that of course works...for pic16f84

I would be very thank ful if someone could help

 

Men vad trevligt.

lite smygreklam för ett annat svenskt elektronikforum
www.geekjoan.com/forum

 

HI..
this is my first topic in here..

I got the same problem with a pic programmer
http://www.propic2.com/images/sch.gif

I get "cannot write in mem 00h"

I tried icprog too and I got the same message

 

Try writing to your pic whitout the programmer cabel in it, you'll probably get the same error.

download this file
http://www.electro-tech-online.com/

place it in the same cataloge as ic-prog.exe and run ic-prog.
goto settings->options->Misc and check the box where it says "enable NT/200/xp Driver"
click ok and the program will restart and install the driver.

it could work

 

...already done..that...if i try without the cable in the serial port I get a different message "chip is copyprotected"....I'm trying with a different pic programmer...also from JMD hopefully this one does the job. if any one have a good pic schematic...could you plz posted here.

And by the way I can read the chip sucessfully...hmm i dont know if that says something.

Thanks for the help everyone.

 

I got to say that in all the time I've been programming pics, I've not had a problem.

I've used the JDM design with IC-Prog, no problem there.

I suggest you check that the mclr pin is raised to around 13v when in program mode, if it isnt then the pic aint gonna be programmed and you will get verify errors. Also check that Ic-prog is set to verify after programming..........

 

sorry Ms Mullemeck

But the link that you gave me is to the Home page of this site!!


and I would to say the I had the same problem again with JDM on icprog

 

could some´one tell me plz how i can check if my chip is working...i mean that it is not broken?

its a pic16f84

I think I did a stupied mistake...setting the chip upside down.. :lol:

one thing ...how do I check that mclr pin is raised to around 13v...that is mclr pin and what other pin?? and what can I do to raise the voltage?

tnx

 

pin 4 is the mclr pin, it hould have around 12-13v on it wrt to pin 5 (gnd) in program mode........the 12-13v is derived from the com port of your pc, look at the circuit, all will be revealed

 

Thanks ...
Is there a way of checking if the pic (16f84) still is "ok" and not damaged??


Thanks for your help everyone

 

did you try the schematics for the Picup programmer that i posted earlier?

it worked for me whit a pic pic16f84a

 

yes i did ...no luck there....

 

you can't guess what was wrong.... :lol: ...one of the diod's was sitting upside down....heheh..now the *****sh***t works fine..hehe...

in case someone else makes the same mistake i post this pic here...hope its right..

Attached Images

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