Hi,can any one look at my log file.i start autotune this afternoon,but I fild the ATRP curve is really strange .why does my P value reduce after autotune,the initial P value is 1，but it’s about 0.5 after autotune,Is that normal?
another quetion is why my curve of P value is like pulse curve.
please go to the below link to download my entire log file https://drive.google.com/file/d/1qrygwNk432wB3IhMYQurygL4eWrF9vfO/view?usp=sharing
I recommend you carefully read the documentation on how to use Autotune: http://ardupilot.org/plane/docs/automatic-tuning-with-autotune.html
There is nothing inherently wrong with Autotune lowering your P-value, rather than raising it.
Many of your mode-switches into Autotune were less than 10 seconds. According to the documentation, if you switch back to manual that quickly, the Auto-tuned value is erased, and reset to where it began.
hi hunt ,I have found wherer is the problem ,thank you for all of your help.