After reset ADUC847 from WDT internal 24-bit sigma-delta ADC changes its own measurement results (about 10%).
When we make the same reset second time, ADC changes its own measurement results to normal ( error 10% disappears)
It depends on how many resets from internal WDT we made - even number - it's Ok - ADC works well, - odd number we get error.
We have to count and recocrd on flash memory how many resets we made odd or even.
It's pretty hard work for our device )
Reference we're using external - AD780
Could you please advices how we could solve this problem?
Thank you in advance!
I'm not sure how WDT reset or any other reset affects the ADC measurement. Can you try using the internal reset while debugging?
Yes, we can.