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 Using The Enhanced/Dual power Willem Programmer
 PIC16F877 Adaptor?
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heckler

United Kingdom
2 Posts

Posted - 11/10/2005 :  14:52:47  Show Profile  Reply with Quote
On the Advanced programmer, is an 40 pin adaptor required for a PIC16F877? as in the "Supported I/C's" it mentions using an adaptor for that chip.

Ta.
Reply #1

usb

138 Posts

Posted - 11/11/2005 :  05:49:40  Show Profile  Reply with Quote
Yes. For the chip with more than 18 pins chip, the PIC adapter is needed via ICSP connector.
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Reply #2

heckler

United Kingdom
2 Posts

Posted - 11/11/2005 :  13:34:22  Show Profile  Reply with Quote
ok, cheers. have you a picure & price of the PIC adaptor?

Si - Doing It Bit x Bit
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Reply #3

bobjacobson

USA
4 Posts

Posted - 04/03/2006 :  20:17:32  Show Profile  Reply with Quote
I have a 16F877A chip to program and I have the Enhanced Willem Programmer. Can anyone explain how to use the ICSP pins? Does the chip have to be seated in the socket? Where does this ICSP come from and what does the other end go to? I don't know why the documentation isn't very good on these. Is it some sort of secret? Or is this just common knowledge, and no one feels like explaining it? I wish I could have a manual that someone could say RTFM! ;)

Thanks in advance.

Bob
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Reply #4

bobjacobson

USA
4 Posts

Posted - 04/03/2006 :  20:20:08  Show Profile  Reply with Quote
I have a 16F877A chip to program and I have the Enhanced Willem Programmer. Can anyone explain how to use the ICSP pins? Does the chip have to be seated in the socket? Where does this ICSP come from and what does the other end go to? I don't know why the documentation isn't very good on these. Is it some sort of secret? Or is this just common knowledge, and no one feels like explaining it? I wish I could have a manual that someone could say RTFM! ;)

Thanks in advance.

Bob
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Reply #5

bobjacobson

USA
4 Posts

Posted - 04/03/2006 :  22:45:47  Show Profile  Reply with Quote
Ok, after reading one post, which helped a bit, I finally found the answer to my question. I also asked a few experts on PIC chips. Here is what I found so everyone else doesn't have to go through what I went through:

For a 40 pin chip (Mine was a PIC16F877A) you can MAKE the cable. Either solder the wires directly (I wouldn't) or find a 5 pin header connector and a 40 or 28 pin socket depending on the chip you need to program. Connect these 5 wires to a 40 pin or 28 pin socket, whichever one your using. Here are the pinouts:

28 Pin Socket
Vpp <--------> Pin 1
Vdd <--------> Pin 20
GND <--------> Pin 19
RB7 <--------> Pin 28
RB6 <--------> Pin 27

40 Pin Socket
Vpp <--------> Pin 1
Vdd <--------> Pin 32
GND <--------> Pin 31
RB7 <--------> Pin 40
RB6 <--------> Pin 39

I hope this helps any newbies. It would have helped me tremendously. Don't forget to look at the chip's datasheet though. It MAY or MAY NOT be different. It is always better to make sure the pinouts are the same. I am using a Enhanced Willem Programmer, which by the way, I love! After reading most frustrated forum posters, I have come to realize that it is easier to get mad at someone else than to try to solve the problem. Most of the problems I have had with the programmer is LACK of documentation. Other than that, I have gotten it to read and program many different chips. Hats off to the developers of this programmer. It is very nice for the money! If anyone else finds this post helpful, PLEASE pass it on. The documentation on these should be better written!

Bob
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