In the board there are two controllers with programmer connection. There is no problem at all with PIC18F67J50(under the display) I can read it and i can program it. But PIC24FJ256GB106 is always unknown device. I have done a lot of modifications to get programmer work with it but no luck. Then I made that testboard with chipsocked where I can test 33FJ anf 24FJ chips. 33FJ works 24FJ don't. Because I can't figure out whats wrong I ordered two different programmers if they work and i can use the boards. It is possible to program 24FJ trought the 18F67 but i dont use it.
I like GTP-USB programmer and it has served very well with many differend PIC controllers. I can't understand why the 24FJ is so difficult. But thank's your help anyway.
Post edited by: rs485, at: 2011/07/01 01:23
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Re:Problemas con los PIC24
por :
sispic
Fecha : 2011/07/01 04:53
Admin
Admin
Posts: 425
I do not think it is difficult . I can verify what the problem is. pic24fj is a bit critical on-line "DATA" I do not fabricate pics. I can assure you it works. 'll try a picture tomorrow, but I am ashamed ... it is very sloppy If you send me your card I revised it for free. and if a software or hardware bug me I will take care of expenses. but I believe I can do. you seem well prepared. I have never left anyone without stand. we are in contact.
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Re:Problemas con los PIC24
por :
rs485
Fecha : 2011/07/02 00:28
User
Junior Boarder
Posts: 9
I have been clearly missed one thing, but I do not know what it is. In many cases, the solution is very simple when you know what is wrong. For example PIC18 B5-pin There is no hurry with this problem because I start the project in autumn. I might send you a card later, if no solution is found.
And thank you again for your help and quick responses
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Re:Problemas con los PIC24
por :
sispic
Fecha : 2011/07/02 18:45
Admin
Admin
Posts: 425
umm .. I have revised my working pic24fj tensions
VDD = 3.90 v. Data and Clock = 0 - 4.55 v. no pullup resistor Mclr = 0.9 - 3.85 v.
I think you can gain a little vdd . 3.5 +-
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![GTP-USB [ plus ]](http://www.winpic800.com//images/stories/con_.jpg)
There is no hurry with this problem because I start the project in autumn. I might send you a card later, if no solution is found.