I re-did the interval testing just to check for consistency, to make the data clearer with 12-bit readings, and alternated between reading ADC0 or ADC1 first, shown by '>'. I needed to use my RP2350B so cut that test short at three and a half hours so the growing creep seen isn't quite so large as with longer intervals but can still be observed.
I have taken the average as 24 as that's what I am mostly seeing here and in other testing. There is more noise being seen here which I guess is because the reads are not simultaneous. I expect the actual average is 24.5 which flips between the two, 24 and 25 -As can be seen it's pretty much the same as originally tested and the alternating read shows the first clears the creep for the second read which immediately happens after the first.
For example, that first reading, where the RP2350B had been idling, not reading ADC, while I was doing something else -Both ADC0 and ADC1 had likely crept up to "41" and the read of ADC0 shows that, but reading also clears the creep so a read of ADC1 is then back to the creep-free "24" average it usually is, what would have been expected.
I have taken the average as 24 as that's what I am mostly seeing here and in other testing. There is more noise being seen here which I guess is because the reads are not simultaneous. I expect the actual average is 24.5 which flips between the two, 24 and 25 -
Code:
ADC 0 ADC 1 DIVERGEAfter 0 mins, gap 0 mins > 41 24 41 +17 __|After 1 mins, gap 1 mins 25 > 24 25 +1After 3 mins, gap 2 mins > 24 24 24After 6 mins, gap 3 mins 25 > 24 25 +1After 10 mins, gap 4 mins > 24 23 23 -1After 15 mins, gap 5 mins 25 > 25 25 +1After 21 mins, gap 6 mins > 24 24 24After 28 mins, gap 7 mins 25 > 24 25 +1After 36 mins, gap 8 mins > 25 24 25 +1After 45 mins, gap 9 mins 25 > 24 25 +1After 55 mins, gap 10 mins > 24 25 25 +1After 66 mins, gap 11 mins 25 > 25 25 +1After 78 mins, gap 12 mins > 24 24 24After 91 mins, gap 13 mins 25 > 25 25 +1 __After 105 mins, gap 14 mins > 26 24 26 +2 |After 120 mins, gap 15 mins 25 > 26 26 +2 |After 136 mins, gap 16 mins > 27 25 27 +3 |After 153 mins, gap 17 mins 24 > 28 28 +4 |After 171 mins, gap 18 mins > 28 24 28 +4 |After 190 mins, gap 19 mins 25 > 29 29 +5 |After 210 mins, gap 20 mins > 30 24 30 +6 |For example, that first reading, where the RP2350B had been idling, not reading ADC, while I was doing something else -
Code:
After 0 mins, gap 0 mins > 41 24Statistics: Posted by hippy — Fri Nov 22, 2024 1:04 pm