Hardware test readings

[John Devires]

Thank you to Alberto for this amazing project. It was really easy to built, all instructions was clear and accurate.

I only have a question or two regarding the hardware test results, when using the test function in OPgui.

I use firmware 0.11.0 and OPgui 11.1.

 

At test #3, you are suppose to get the following readings:

 

VDDU: 0v

VPPU: 13v

RB5:   0v

RB6:   0v

RB7:   0v

 

With mine, I get all the same, but VDDU = 5v

All other tests give positive resuslts, as recommended.

What can cause this issue and is it a problem?

 

I already tried to programme the following PIC's (16F628A, 18F2550) without any problems.

 

Thank you for any advice.

 

John

[Alberto Maccioni]

I would say that Q2 or other components around it are failing.
Still most chips will work because you can enter program mode by toggling VPP.