Tmc2209 current setting not working sometime

[Akshar062]

I have made code with three tmc2209 stepper motor driver and Arduino mega i am using driver address to set all driver from one pin and there is one more issue when my RX pin is connected then my motor is making noise and not running properly so i am making it low

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include

include

const int EN_PIN = 5;

const int MS1_X = 12; const int DIR_PIN_XX = 2; const int STEP_PIN_XX = 3; const int DRIVER_ADDRESS_XX = 0b01;

const int MS2_Y = 11; const int DIR_PIN_YY = 6; const int STEP_PIN_YY = 7; const int DRIVER_ADDRESS_YY = 0b10;

const int DIR_PIN_ZZ = 8; const int STEP_PIN_ZZ = 9; const int DRIVER_ADDRESS_ZZ = 0b00;

const int STEP_PER_REVALUATION = 800;

TMC2209Stepper driverXX(SW_RX, SW_TX, R_SENSE, DRIVER_ADDRESS_XX); TMC2209Stepper driverYY(SW_RX, SW_TX, R_SENSE, DRIVER_ADDRESS_YY); TMC2209Stepper driverZZ(SW_RX, SW_TX, R_SENSE, DRIVER_ADDRESS_ZZ);

// Create stepper motor objects MoToStepper XStepper(STEP_PER_REVALUATION, STEPDIR); MoToStepper YStepper(STEP_PER_REVALUATION, STEPDIR); MoToStepper ZStepper(STEP_PER_REVALUATION, STEPDIR);

void setup() {

Serial.begin(115200);

pinMode(EN_PIN, OUTPUT); pinMode(SW_RX, OUTPUT); pinMode(MS1_X, OUTPUT); pinMode(MS2_Y, OUTPUT);

digitalWrite(EN_PIN, LOW); digitalWrite(MS1_X, HIGH); digitalWrite(MS2_Y, HIGH);

driverXX.begin(); // SPI: Init CS pins and possible SW SPI pins driverXX.toff(5); // Enables driver in software driverXX.rms_current(400); // Set motor RMS current driverXX.microsteps(16); // Set microsteps to 1/16th driverXX.I_scale_analog(false); // Use internal voltage reference driverXX.pwm_autoscale(true); // Needed for stealthChop //driver.en_spreadCycle(false); // Toggle spreadCycle on TMC2208/2209/2224

driverYY.begin(); // SPI: Init CS pins and possible SW SPI pins driver.toff(4); driver.blank_time(24); // Enables driver in software driverYY.rms_current(100); // Set motor RMS current driverYY.microsteps(16); // Set microsteps to 1/16th driverYY.I_scale_analog(false); // Use internal voltage reference driverYY.pwm_autoscale(true); // Needed for stealthChop //driver.en_spreadCycle(false); // Toggle spreadCycle on TMC2208/2209/2224

driverZZ.begin(); // SPI: Init CS pins and possible SW SPI pins driverZZ.toff(5); // Enables driver in software driverZZ.rms_current(10); // Set motor RMS current driverZZ.microsteps(16); // Set microsteps to 1/16th driverZZ.I_scale_analog(false); // Use internal voltage reference driverZZ.pwm_autoscale(true); // Needed for stealthChop //driver.en_spreadCycle(false); // Toggle spreadCycle on TMC2208/2209/2224

XStepper.attach(STEP_PIN_XX, DIR_PIN_XX); XStepper.setSpeed(speed); XStepper.setRampLen(20);

YStepper.attach(STEP_PIN_YY, DIR_PIN_YY); YStepper.setSpeed(3000); YStepper.setRampLen(1000);

ZStepper.attach(STEP_PIN_ZZ, DIR_PIN_ZZ); ZStepper.setSpeed(3000); ZStepper.setRampLen(1000);

}

void loop(){ XStepper.rotate(1); YStepper.rotate(-1); ZStepper.rotate(1);

digitalWrite(SW_RX,LOW);

} `

but my motor some time sets current properly and sometime even if i have not restart motor and stop motor using button or something it will use some random current when i start motor and current is not setting properly when i upload code i have to disconnect board an reconnect then it will set current for first time then same problem