PIC18F45Q10 ADC

[dz28]

Using the PIC18F45Q10 and the ADC is not working in Hardware.
Simulation is fine inside of flowcode.
I had a similar problem with the ADC on the PIC18F25Q10 part.
Hopefully it is a similar solution.

Thanks,
Dave

[medelec35]

Can you be more specific?
You mean you can't select FVR?

[dz28]

I have not got to trying FVR yet but I see it in the Drop down.
I expect to need a C code block to select the FVR voltage.

For now I am just doing a simple test to check the ADC functionality.
Reference is Vdd, Pin An19
Just reading a slide pot with "GetInt" and displaying the result on a display.
FlowChart attached.


Thanks,
Dave

[dz28]

For a reality check I swapped out the PIC18F45Q10 with a PIC18F45K40
and the ADC works correctly including the FVR register.

The Chips are functionally similar so it looks like there is a real issue with the PIC18F45Q10 part.

Thanks,
Dave

[dz28]

Has there been any movement on this issue?

Thanks,
Dave

[dz28]

Ben,

Sorry to push ...
Do you know if this issue will be resolved soon?
Should I pick another Chip to develop with or move it to MPLab.

Thanks,
Dave

[Benj]

Hi Dave,

I'll have a look into this for you today and see if I can work out what the problem is.

[Benj]

I've now had a go at making a change that will hopefully allow the ADC to work on the Q10 devices.

Let me know how you get on.

[dz28]

Ben,

Sorry to report things are still not working.
Tried AN1 and AN16
Verified voltage on A/D input pins

A/D Setup
VDD
Fosc/32
40

Thanks,
Dave

[dz28]

Ben,

Any updates on this problem?

Thanks,
Dave