The file for you:
TMC2209 V1.2 VS TMC2208, more of these functions:
1. Blocking rotation detection
Stallguard--TMC2209 provides a load and loss of speed detectiontechnology
2. Current dynamic adjustment
Coolstep--TMC2209 provides a current dynamic regulation technology that saves up to 75% of electrical energy.
- stealthChop2 - for quiet operation and smooth motion
- spreadCycle - highly dynamic motor control chopper
- coolStep - current control for energy savings
- stallGuard4 - sensorless motor load detection
The hardware of the modes UART,DIR/STEP is the same. If you need to use UART mode, just need to modify the firmware.
3 x TMC2209 V1.2 Stepper Motor Driver