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W25X40CLSNIG as flash for OTA

meddie 10 Jul 2016, 10:27 last edited by

Hey together,

can i use this one W25X40CLSNIG as the flash module fot OTA?

Thanks a lot.
Greets Eddie
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1 Reply Last reply 10 Jul 2016, 12:57
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tbowmo Admin 10 Jul 2016, 12:57 last edited by @meddie

@meddie

Seems that it can be used, from a quick glance at the datasheet.
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scalz Hardware Contributor 10 Jul 2016, 15:07 last edited by

yes this one should work as it is the same used on moteino.
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meddie 10 Jul 2016, 19:48 last edited by

thank you very much, then i can order them. i was not sure.
Greets Eddie
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Fabien 11 Jul 2016, 20:45 last edited by

Fine ... I order some !
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alexsh1 12 Jul 2016, 10:01 last edited by

Excellent I have ordered a few
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topic:timeago_later,20 days

Fabien 1 Aug 2016, 19:21 last edited by Fabien 1 Aug 2016, 20:04
Edit : It works. Just add
```
#define MY_OTA_FLASH_JDECID 0xEF30
```
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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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W25X40CLSNIG as flash for OTA

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