Arduino Nano 33 IoT Debugging

Get your Nano 33 IoT board connected to full GDB debugging so you can solve those bugs and get your project released!

Dec 6, 2019

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2 respects

gdb

debugging tools

visual micro

Devices & Components

Arduino Nano 33 IoT

Segger J-Link Probe

Female/Female Jumper Wires

Hardware & Tools

Solder Flux, Soldering

Solder Wire, Lead Free

Soldering iron (generic)

Software & Tools

Visual Studio 2017

Arduino IDE

Visual Micro

Project description

Code

Nano33IoTProject.ino

arduino

Main Sketch file used in video

1const int motor = 12;
2int currentMotorPWM = 0;
3unsigned long currentPeriodStartTime   = 0;
4unsigned int currentPeriod_MS = 1000;
5unsigned int currentResolution   = 254;
6unsigned int maxResolution = 254;
7int currentPWMVal = 0;
8unsigned   long loopCounter = 0;
9
10void setup() {
11	pinMode(motor, OUTPUT);
12	analogWrite(motor,   currentPWMVal);
13}
14
15void loop() {
16	currentPWMVal = calculateCurrentPWM_sine((millis()   - currentPeriodStartTime) % currentPeriod_MS);
17	pwmWrite(currentPWMVal);
18	loopCounter++;
19}
20

const int motor = 12;
int currentMotorPWM = 0;
unsigned long currentPeriodStartTime   = 0;
unsigned int currentPeriod_MS = 1000;
unsigned int currentResolution   = 254;
unsigned int maxResolution = 254;
int currentPWMVal = 0;
unsigned   long loopCounter = 0;

void setup() {
	pinMode(motor, OUTPUT);
	analogWrite(motor,   currentPWMVal);
}

void loop() {
	currentPWMVal = calculateCurrentPWM_sine((millis()   - currentPeriodStartTime) % currentPeriod_MS);
	pwmWrite(currentPWMVal);
	loopCounter++;
}

Nano33IoTProject.ino

arduino

Main Sketch file used in video

1const int motor = 12;
2int currentMotorPWM = 0;
3unsigned long currentPeriodStartTime  = 0;
4unsigned int currentPeriod_MS = 1000;
5unsigned int currentResolution  = 254;
6unsigned int maxResolution = 254;
7int currentPWMVal = 0;
8unsigned  long loopCounter = 0;
9
10void setup() {
11	pinMode(motor, OUTPUT);
12	analogWrite(motor,  currentPWMVal);
13}
14
15void loop() {
16	currentPWMVal = calculateCurrentPWM_sine((millis()  - currentPeriodStartTime) % currentPeriod_MS);
17	pwmWrite(currentPWMVal);
18	loopCounter++;
19}
20

const int motor = 12;
int currentMotorPWM = 0;
unsigned long currentPeriodStartTime  = 0;
unsigned int currentPeriod_MS = 1000;
unsigned int currentResolution  = 254;
unsigned int maxResolution = 254;
int currentPWMVal = 0;
unsigned  long loopCounter = 0;

void setup() {
	pinMode(motor, OUTPUT);
	analogWrite(motor,  currentPWMVal);
}

void loop() {
	currentPWMVal = calculateCurrentPWM_sine((millis()  - currentPeriodStartTime) % currentPeriod_MS);
	pwmWrite(currentPWMVal);
	loopCounter++;
}

Calcs.ino

arduino

Secondary INO sketch used in Debugger video

1// Encapsualtion 
2int calculateCurrentPWM_spiky(unsigned long periodTime)  {
3	return calculateCurrentPWMMultiplier(periodTime) * currentResolution;
4}
5
6int  calculateCurrentPWM_sine(unsigned long periodTime) {
7	return
8		round(
9			abs(int(
10			(
11				sin(
12				(
13					double(calculateCurrentPWM_spiky(periodTime))
14					/  165.00
15					)
16				)
17				)
18				* double(currentResolution)
19				)
20			)
21		);
22}
23
24
25int  oldValue = -1;
26void pwmWrite(int value) {
27	if (oldValue != value) {
28		analogWrite(motor,  value);
29		oldValue = value;
30		Serial.print(",");
31		Serial.print(value);
32	}
33}
34
35double  calculateCurrentPWMMultiplier(unsigned long periodTime) {
36	if ((double(periodTime  % currentPeriod_MS) / double((currentPeriod_MS / 2.00))) <= 1.00) {
37		return  (double(periodTime % currentPeriod_MS) / double((currentPeriod_MS / 2.00)));
38	}
39	else  {
40		return (1.00 - ((double(periodTime % currentPeriod_MS) - double((currentPeriod_MS  / 2.00))) / double((currentPeriod_MS / 2.00))));
41	}
42}
43

// Encapsualtion 
int calculateCurrentPWM_spiky(unsigned long periodTime)  {
	return calculateCurrentPWMMultiplier(periodTime) * currentResolution;
}

int  calculateCurrentPWM_sine(unsigned long periodTime) {
	return
		round(
			abs(int(
			(
				sin(
				(
					double(calculateCurrentPWM_spiky(periodTime))
					/  165.00
					)
				)
				)
				* double(currentResolution)
				)
			)
		);
}


int  oldValue = -1;
void pwmWrite(int value) {
	if (oldValue != value) {
		analogWrite(motor,  value);
		oldValue = value;
		Serial.print(",");
		Serial.print(value);
	}
}

double  calculateCurrentPWMMultiplier(unsigned long periodTime) {
	if ((double(periodTime  % currentPeriod_MS) / double((currentPeriod_MS / 2.00))) <= 1.00) {
		return  (double(periodTime % currentPeriod_MS) / double((currentPeriod_MS / 2.00)));
	}
	else  {
		return (1.00 - ((double(periodTime % currentPeriod_MS) - double((currentPeriod_MS  / 2.00))) / double((currentPeriod_MS / 2.00))));
	}
}

Downloadable files

Arduino Nano 33 IoT to Debugger Wiring

Example of how to wire the Arduino Nano 33 IoT to an external debugger. The header shown is from the Segger JLINK and we are using it in SWD mode here.

Arduino Nano 33 IoT to Debugger Wiring

Example of how to wire the Arduino Nano 33 IoT to an external debugger. The header shown is from the Segger JLINK and we are using it in SWD mode here.

Arduino Nano 33 IoT to Debugger Wiring

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