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Hardware debugging

axillent Mod 10 Feb 2015, 13:12 last edited by axillent 10 Feb 2015, 15:46
Just got success with hardware debugging using my JTAGICE3. Same way can be used for other atmel's debuggers

The reason to look for solution came from this project http://forum.mysensors.org/topic/957/red-green-matrix-information-panel-with-real-time-clock
Because there is no usual way to upload arduino sketch using JTAG I have to look for a solution based on Atmel Studio.
The following steps are needed:
1. To install Atmel Studio and VisualMicro plugin
2. To setup your arduino project with VisualMicro
3. Compile project
4. Launch a second instance of AtmelStudio and go to File/Open menu. Select Open Object File for Debugging and find out the .ELF file inside the Debug folder inside Arduino project compiled by VisualMicro. Select "link to file" instead of copy
5. Save new atmel Studio project, it will be a project for debug. Go to Project/Options/Tool and choose your debugging tool. Save project.
After all this you will be able to debug your arduino using debugWire (atmega328) or JTAG (mega).

After recompilation of the project your files will be reloaded in your debug project after pressing reload

You will probably also asked to recover source mappings:

Made your choice about mapping. You do not need to recover mappings to sources you are not interesting in. For example on my screen shot I have no interest to debug arduino internal sources this why I just press Finish
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General Discussion • 23 Mar 2014, 21:38 • ToSa 1 Mar 2015, 11:21

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I would really like to get OTA working here as it's freezing outside and I have to go there to update the software in the greenhouse control system. So please, can we have a 'how to' step-by-step guide to OTA? Please? S.
hlk-pm01 are to noisy for rfm69?
Hardware • 5 Aug 2023, 21:16 • Tmaster 9 Aug 2023, 16:28

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@Tmaster Never assume the original PCB was just a circuit of components, the PCB can incorporate RF shields and antenna radio ground planes...
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Hardware • 19 Jun 2023, 00:41 • Robert Leverett 19 Jun 2023, 00:41

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Does MySensors require Arduino Timer 2?
Hardware • mysensors interrupt nano interrupts esp • 6 Jan 2024, 19:39 • OldSurferDude 11 Jan 2024, 04:39

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I have success! (oops, that's suppose to be Timer1) I only sample for 1/60 of a second. What I did was to back up all the timer registered I used and then resorted them after I was done sampling. (As opposed to initializing the registers in setup and then starting the timer when needed.) Now I have a Nano sampling the data and sending it to a MySensors Gateway on an RPi3B+ which then sends it to an MQTT broker runing on an old laptop. Also running on the laptop is Home Assistant running inside of VirtualBox. If MySensors does use Timer1, it appears that restoring the registers allows it to be shared. //------------------------------------------------------ISR ISR(TIMER1_OVF_vect){ // interrupt service routine for overflow TCNT1 = TimerPreloadValue; // must be first line! starts the timer counting again digitalWrite(TRIGGER_START_SAMPLE_PIN,HIGH); samplesVolts[--sample]=analogRead(VOLTS_IN_PIN); // decrement before capturing samplesCurrent[sample]=analogRead(CURRENT_IN_PIN); digitalWrite(TRIGGER_START_SAMPLE_PIN,LOW); if (!sample){ // count down to zero digitalWrite(TRIGGER_START_SAMPLE_PERIOD_PIN,LOW); // indicate that sampling is complete samplingEnd = micros(); TCCR1B &= 248; // turns off timer } } //------------------------------------------------------sampleOneCycle void sampleOneCycle(){ // back up timer registers uint8_t TCNT1_b = TCNT1; uint8_t TCCR1B_b = TCCR1B; uint8_t TCCR1A_b = TCCR1A; uint8_t TIMSK1_b = TIMSK1; // configure timer which starts the sampling noInterrupts(); // disable all interrupts TCCR1A = 0; TCCR1B = 0; TCNT1 = TimerPreloadValue; // preload timer //TCCR1B |= (1 << CS10)|(1 << CS12); // 1024 prescaler TCCR1B &= 248; // turns off timer? TIMSK1 |= (1 << TOIE1); // enable timer overflow interrupt ISR // demark sampling sample = NUMBER_OF_SAMPLES; // count down to zero digitalWrite(TRIGGER_START_SAMPLE_PERIOD_PIN,HIGH); samplingStart = micros(); TCNT1 = 65535; // first trigger right away! TCCR1B |= 1; // turns on timer interrupts(); // enable all interrupts // wait for sampling to be complete while(digitalRead(TRIGGER_START_SAMPLE_PERIOD_PIN)){}; samplingEnd = micros(); // restore timer registers TCNT1 = TCNT1_b; TCCR1B = TCCR1B_b; TCCR1A = TCCR1A_b; TIMSK1 = TIMSK1_b; }
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Hardware • 24 Jan 2024, 23:06 • wrendral 3 Feb 2024, 07:13

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@wrendral said in "Remote Irrigation with LoRaWAN: LM27313 Challenges and PCB Design": I will go with a Li-Po Battery type: 304048 3.7V 1200mAh Might work, but maybe the internal protection will trigger with the high current peaks. I'd suggest you plan a 0 Ohm, (2512/THT) resistor as R2 and then replace it with a 100Ohm/1Watt if the protection triggers.
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Hardware • 1 Feb 2020, 09:18 • hakha4 5 Dec 2023, 02:21

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I bought the Every because it implied it was backward compatible with the nano. No, it's not, as we found out. Be that as it may, any word on a getting the Every working with mySensors?

Hardware debugging

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Hardware debugging

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Over the air updates General Discussion • 23 Mar 2014, 21:38 • ToSa 1 Mar 2015, 11:21

hlk-pm01 are to noisy for rfm69? Hardware • 5 Aug 2023, 21:16 • Tmaster 9 Aug 2023, 16:28

Sensors and more Hardware • 19 Jun 2023, 00:41 • Robert Leverett 19 Jun 2023, 00:41

Does MySensors require Arduino Timer 2? Hardware • mysensors interrupt nano interrupts esp • 6 Jan 2024, 19:39 • OldSurferDude 11 Jan 2024, 04:39

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0Online

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Over the air updates
General Discussion • 23 Mar 2014, 21:38 • ToSa 1 Mar 2015, 11:21

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Hardware • 5 Aug 2023, 21:16 • Tmaster 9 Aug 2023, 16:28

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Hardware • 19 Jun 2023, 00:41 • Robert Leverett 19 Jun 2023, 00:41

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