Driver not being Enable to run stepper motor

[kirito2908]

Hello,
I was working with TMC2209 Driver to run a stepper motor and control the current with Arduino Uno Board. Strangely, even when i set rms_current() the current was not setting. When i searched online, I saw a method to check Driver Status and when i did so, it was showing '0' which means that the driver is disable.
Here is the sketch. If anyone can help than please reply as soon as possible.

#include <TMCStepper.h>
#include <AccelStepper.h>

#define DIR_PIN          7 // Direction
#define STEP_PIN         6 // Step
#define SW_RX            0 // TMC2208/TMC2224 SoftwareSerial receive pin
#define SW_TX            1 // TMC2208/TMC2224 SoftwareSerial transmit pin
#define SERIAL_PORT Serial  // TMC2208/TMC2224 HardwareSerial port
#define DRIVER_ADDRESS 0b00 // TMC2209 Driver address according to MS1 and MS2

#define R_SENSE 0.11f 

TMC2209Stepper driver(SW_RX, SW_TX, R_SENSE, DRIVER_ADDRESS);
AccelStepper stepper(1, STEP_PIN, DIR_PIN);

void setup() {
  Serial.begin(115200);
  pinMode(STEP_PIN, OUTPUT);
  pinMode(DIR_PIN, OUTPUT);
  driver.beginSerial(115200);     // SW UART drivers
  stepper.setMaxSpeed(1000);
  stepper.setSpeed(500);

  driver.begin();                 //  SPI: Init CS pins and possible SW SPI pins
  driver.toff(5);                 // Enables driver in software
  driver.rms_current(100);        // Set motor RMS current
  driver.microsteps(16);          // Set microsteps to 1/16th
  driver.I_scale_analog(false);
  Serial.println("Driver initialized. RMS current: " + String(driver.rms_current()));
  Serial.println("Driver status: " + String(driver.DRV_STATUS(), HEX));
}

void loop() {
  stepper.runSpeed();
}

Here's what i'm getting when i check the Driver Status :

15:48:20.680 -> Driver initialized. RMS current: 165
15:48:20.715 -> Driver status: 0

Thank You

[Paul_KD7HB]

@kirito2908

#define SW_RX            0 // TMC2208/TMC2224 SoftwareSerial receive pin
#define SW_TX            1 // TMC2208/TMC2224 SoftwareSerial transmit pin

Your serial pins are ALREADY in use by the USB connection to your PC! Pick unused pins.

[kirito2908]

Thanks @Paul_KD7HB Sir For Your Reply And Letting Me Know About Such A Thing. I Switched The Serial Pins From 0 & 1 To 2 & 3 And Used SoftwareSerial Library. The End Result Was Still The Same In Serial Monitor. The Driver Status Is Still '0' And The Current Is Not Setting.
Did I Do Something Wrong Or Have To Add Something Else ? Thanks Again For Your Current Help But I Hope Anyone Can Help Me A Little More ?

Here's The Code After I Switched The Pins :

#include <TMCStepper.h>
#include <AccelStepper.h>
#include <SoftwareSerial.h>

#define DIR_PIN          7  // Direction
#define STEP_PIN         6  // Step
#define SW_RX            2  // TMC2208/TMC2224 SoftwareSerial receive pin
#define SW_TX            3  // TMC2208/TMC2224 SoftwareSerial transmit pin
#define SERIAL_PORT Serial  // TMC2208/TMC2224 HardwareSerial port
#define DRIVER_ADDRESS 0b00 // TMC2209 Driver address according to MS1 and MS2

#define R_SENSE 0.11f 

TMC2209Stepper driver(SW_RX, SW_TX, R_SENSE, DRIVER_ADDRESS);
AccelStepper stepper(1, STEP_PIN, DIR_PIN);
SoftwareSerial mySerial(SW_RX, SW_TX);

void setup() {
  Serial.begin(115200);
  mySerial.begin(115200);
  pinMode(STEP_PIN, OUTPUT);
  pinMode(DIR_PIN, OUTPUT);
  driver.beginSerial(115200);     // SW UART drivers
  stepper.setMaxSpeed(1000);
  stepper.setSpeed(500);

  driver.begin();                 //  SPI: Init CS pins and possible SW SPI pins
  driver.toff(5);                 // Enables driver in software
  driver.rms_current(100);        // Set motor RMS current
  driver.microsteps(16);          // Set microsteps to 1/16th
  driver.I_scale_analog(false);

  Serial.println("Driver initialized. RMS current: " + String(driver.rms_current()));
  Serial.println("Driver status: " + String(driver.DRV_STATUS()));
}

void loop() {
  stepper.runSpeed();
}

And Here's The Result :

09:50:06.282 -> Driver initialized. RMS current: 165
09:50:06.327 -> Driver status: 0

Thanks