Please answer the following questions.
What version of the firmware are you using?
newest Dev
Is the problem repeatable?
yes
Under what conditions does the bug occur?
If steps/mm are high, like standart 100 steps/mm stepper stutters but then moves. If it is even higher 255 steps/mm stutters and doesnt move
Strange behaviour, if steps/mm are high it stutters and dont move, if they are low (tested with 32) it drives smooth without stuttering.
Is it something software related or hardware?
Iam using the Dev software, I2s and trinamic xyzabc just changed some pins there.
I did some videos but i dont know where to upload them..
评论 (2)
#2 – bdring 于 2020-06-26
Try using $S to access settings if you are using the devt branch.
![[gnea/grbl-Mega Issue#1] $ command extentions](https://www.grblhal.com/wp-content/themes/gitphp/timthumb.php?src=https://www.grblhal.com/wp-content/themes/gitphp/assets/img/pic/9.jpg&h=110&w=185&q=90&zc=1&ct=1)
![[gnea/grbl-Mega Issue#2] Better interrupt priorities](https://www.grblhal.com/wp-content/themes/gitphp/timthumb.php?src=https://www.grblhal.com/wp-content/themes/gitphp/assets/img/pic/8.jpg&h=110&w=185&q=90&zc=1&ct=1)
![[gnea/grbl-Mega Issue#3] ATMega16U2 virtual com port on ATMega2560](https://www.grblhal.com/wp-content/themes/gitphp/timthumb.php?src=https://www.grblhal.com/wp-content/themes/gitphp/assets/img/pic/3.jpg&h=110&w=185&q=90&zc=1&ct=1)
#1 – KingMo5h 于 2020-06-26
Nevermind, default settings was wrong. Max amp was on 0.25A, this is way to low.
Btw wasnt there a command or others to activate the extended settings? Couldnt find it anymore.