MKS TMC2209 stepper driver

Overview:

Tmc2209 have all function of tmc2208,can completely replace tmc2208. At the same time,tmc2209 have better heat dissipation,support bigger current,support sensorless-homing function.

Features:

1. Ultra quiet

2. Large heat sink,good heat dissipation

3. Support sensorless-homing function.

4. Support uart mode by set jumper caps instead of welding on mks gen_l V2.0,skr1.3/1.4.

Parameters

1. Default current:1.25a

2. Max current:2.5a

3. Logic voltage:3.3v/5v

4. Input voltage:5.5v-28v

5. Microstep:up to 1/256

6. Mode:dir/step,uart

Driver current regulation:

1. Verf measures the voltage of Gnd and potentiometer middle.

2. Please DO NOT connect the motors when measuring the voltage, or it's easy to burn the drive.

3. Please connect the power supply when measuring voltage as well, do not connect only the USB power.

4. Please pay special attention to the direction, do not insert wrongly!

Driver current algorithm:

Uart mode:

It's easy to enable Uart mode by  jumper. 

SKR 1.3/1.4:

Sensorless-homing function:

Enable by jumpers. 

MKS Robin E3D:

SKR 1.3/1.4: