kaiwol1990 / mechaduino Goto Github PK

Hi,
In order to make the readEncoderDiagnostics function to work I have to comment the lines below in Serial.cpp. Problem seen in master and dev branches. Why do you read twice?
Christophe.

void readEncoderDiagnostics(int arg_cnt, char args) {
disableTC5Interrupts();
disableTC4Interrupts();
long angleTemp;

SerialUSB.println(diagnostics_header);

digitalWrite(chipSelectPin, HIGH);
delay(1);
digitalWrite(chipSelectPin, LOW);

SPI.transfer(0xFF);
SPI.transfer(0xFC);

digitalWrite(chipSelectPin, HIGH);
delay(1);
digitalWrite(chipSelectPin, LOW);

byte b1 = SPI.transfer(0xC0);
byte b2 = SPI.transfer(0x00);

// digitalWrite(chipSelectPin, HIGH);
// delay(1);
// digitalWrite(chipSelectPin, LOW);
//
// b1 = SPI.transfer(0xC0);
// b2 = SPI.transfer(0x00);**

Hello Kaiwol1990, first let me thank you for your help to the stepper servo drive world!

I'm currently working on a design based on the Mechaduino but for largers motors, using discrete MOSFETs instead of a dual H-bridge IC drive.

Got a Robodyn SAMD21 MINI board, since use the same microcontroller, and tried to upload your modified code version of Mechaduino but I'm not getting anything on the serial monitor, while the original code from Mechaduino works great. Any idea what could it be?

Hi,

I can't get my 0.9 stepper to work with this release. It works somewhat better with the old version.
It runs through the calibration-process, but i get maximal error of around 70%. But I don't get any data for the lookup table and it sort of hangs.

With this version when trying to calibrate I get: "...Motor is not moving -> abbort"
It starts to move but don't really move at all, just oscillates.

Also, mm_rev what should the correct value be?

Thanks for any info