ADC infinite loop (kinetis + k64)

vivien_leymarie — Mon, 08 Jul 2019 08:55:03 GMT

Good morning everybody,

I tried to use an ADC to get data from pins (they are either at 0 (ground) or 3.3v).

I have used this helpful tutorial : Tutorial: ADC with the Freedom Board | MCU on Eclipse yet with a break point it get to AD1_GetValue16(&value); but then goes into an infinite loop and value is never updated.

To get started, i am just trying with only one pin, currently my test pin ADC0_DP1 is grounded.

I will join my ADC settings and code to show you what i have done.

Thank you for your support :smileyhappy:

Re: ADC infinite loop (kinetis + k64)

Robin_Shen — Wed, 10 Jul 2019 01:26:31 GMT

Hi vivien,

I try to follow that Tutorial using KDS3.2 test on FRDM-K64F board.

In the Variables View, I can see how the value changes:

Would you please let me know the problem that you meet?

If the value is always 0 or 3.3v, then you may need to check the voltage of VREFSH and VDDA.

Best Regards,

Robin

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ADC infinite loop (kinetis + k64)

Re: ADC infinite loop (kinetis + k64)