I am running an Adimlab Gantry S (ender 3 clone) with a Pandapi v2.5, raspberrypi4 2g and 4 tmc2208 in standalone with the newest version of the 64bit firmware. I think there may be a timing issue in stepper.h due to the increase in clock cycles from a change to 64 bit. The speed increase appears to be double but that is an estimate. Is there a way to calibrate the speed or is it a calculation in the firmware?
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With the new 64bit firmware, there seems to be an increase in stepper motor speed. This is not a change in esteps as the parts are correct
With the new 64bit firmware, there seems to be an increase in stepper motor speed. This is not a change in esteps as the parts are correct
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search "PANDAPI" marlincore.cpp as the following, you can change the value for calibrate the speed. e.g. increase the 42 to higher value will slow down the speed.
// PANDAPI int pi_n=read_version();// if(pi_n==-4)//pi4b step_motor_init(stepper.isr,42); // else if(pi_n==3)//pi3+ step_motor_init(stepper.isr,12); // else //if(pi_n==-3)//pi3b step_motor_init(stepper.isr,12); //