I was not able to get the driver to work, even when I followed the tutorial on the wiki doc. I do not know if there is something wrong with the code or with the wiring but if anyon...

I am using the TMC260 with Arduino Uno (SPI interface) to rotate a motor up for a certain time, down for a certain time, and repeat. I am using the configuration settings from the example code.

The program works as intended for some amount of time (usually 1-2 hours but I've seen as long as 12+ hours) and at some point the program hangs. I inserted print commands before each instruction and determined that Arduino is hanging after one of the spi.start() calls each time.

Any idea why this is happening?


void loop() {
delay(600000);

//rotate down
tmc26XStepper.SPI_step(rotationSteps);
tmc26XStepper.spi_start();

delay(120000);

//rotate up
tmc26XStepper.SPI_step(-rotationSteps);
tmc26XStepper.spi_start();
}


Hi I am using this driver with a 5V stepper motor and a 5V supply. According to the schematic the EN pin is kept LOW that should enable the stepper motor drive and harden the motor shaft but the stepper motor is freewheeling. Why?