hi Vsurcan,
I think not it is a hardware issue because i reprogrammed  the pic but also
pic 18f4455 which programmed perfectly, so i think not it is a power
connection ,programmer speed or something else.
Anywhere thanks for suggestions.
kind regards
Jos

Op wo 10 apr 2024 om 07:20 schreef vsurducan <vsurdu...@gmail.com>:

> That is a programming issue not a library issue. Check hardware, supply,
> cable length, wires with cold solder or even not connected, programmer
> speed, programmer software malfunction. I guess you need pickit3 plus or
> pickit3 minus to program that pic. With a correct definition file.
>
> On Tue, Apr 9, 2024 at 10:45 PM jos smans <smans...@gmail.com> wrote:
>
>> hi Rob,
>> I have compiled  the 18f4431 and a hex file was made, but after
>> programming  the pic with pickit 3, the error occurred "programming failed
>> at program memory address 0x000000".Maybe the adc library must, as you said
>> before, changed.
>> kind regards
>> Jos
>>
>> Op di 9 apr 2024 om 21:09 schreef jos smans <smans...@gmail.com>:
>>
>>> Hi Rob,
>>> Thank you very much for your support. It works excellent.
>>> Kind regards
>>> Jos
>>>
>>> Op di 9 apr 2024 om 19:48 schreef Rob CJ <rob...@hotmail.com>:
>>>
>>>> Hi Jos,
>>>>
>>>> The problem is in the ADC library. Apparently the 18F4431 has a
>>>> different way of selecting the ADC channel that I have never seen before.
>>>>
>>>> I made a quick fix and added the channel selection for your PIC but to
>>>> the attached ADC library did not test this so you should give it a try. The
>>>> code I added could be simplified but that is something that could be done
>>>> later.
>>>>
>>>> So place the attached ADC library in the directory of your program
>>>> recompile it and let me know if it works.
>>>>
>>>> Thanks.
>>>>
>>>> Kind regards,
>>>>
>>>> Rob
>>>>
>>>> ------------------------------
>>>> *Van:* jallib@googlegroups.com <jallib@googlegroups.com> namens jos
>>>> smans <smans...@gmail.com>
>>>> *Verzonden:* dinsdag 9 april 2024 16:56
>>>> *Aan:* jallib <jallib@googlegroups.com>
>>>> *Onderwerp:* [jallib] Greenhouse
>>>>
>>>> Good day, i have a problem with a program to make   automatic my
>>>> greenhouse. With pic 18f4455,  it  works fine, but not with pic 18f4431.I
>>>> think its a adc fault but i am not sure.
>>>> Can someone help me? thanks
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