16F18877(AD) chip is faulty!

[niedian]

16F18877(AD) in practice, or in proteus,They don't work properly.itdoes not work properly after compilation in V8,V9,V10 Version .

16F18877.fcfx

(10.63 KiB) Downloaded 616 times

[p.erasmus]

Hi,
Try to use the help file(wiki) when using components for the AD component you need to enable the ADC on the chip before using it see screen print below

P2.JPG (49.79 KiB) Viewed 4749 times

P1.JPG (73.12 KiB) Viewed 4749 times

Try it and let us know how you get along

[niedian]

solved！

[BenR]

Hello,

you need to enable the ADC on the chip before using it

This shouldn't be the case. The Raw enable should already be being called as part of the GetByte routine.

This the code for the GetByte function.

GetByte.jpg (10.55 KiB) Viewed 4692 times

And the RawEnable for comparison.

RawEnable.jpg (6.08 KiB) Viewed 4692 times

Niedian, you say solved can you say what did you do to solve the issue? Was it as Peter described?

[p.erasmus]

Hi Ben,

I had now two simple projects that the ADC did not work without calling the RAW enable Macro might be good Idea to check this

[BenR]

Thanks Peter,

Can you check your C code matches the code shown above.

[p.erasmus]

Hi Ben
OK I will check when I am back at the lab

[p.erasmus]

Hi Ben,

Ok I see with the getbyte the ADC gets enabled however in my code I use RawSampleInt and AverageSamples and in the C code functions the ADC is not enabled and I asumed it was the case for getByte as well Sorry I mislead the person with my comments however I was sure I had to use RawEnable
my appoligise

would be interesting if he tell us how hesolved the issue.

P1.JPG (29.55 KiB) Viewed 4682 times

P2.JPG (114.96 KiB) Viewed 4682 times

[BenR]

Hello Peter,

Aha yes for the RawSample you need to enable first ok that explains things and glad to know it's not a problem.

Interested as to how Niedian solved their issue.

[niedian]

The same old problem. unsolved