![]() ![]() That way they wont conflict with each other because there will be some time between each of the three interrupts (overflow, compare A and compare B). Simply set the compare interrupts to occur at 1/3rd and 2/3rds of the overflow period. Take the effort of finding the file and browsing through it. It is possible to use the Timer0 compare interrupts without affecting the millis() and micros() functions. Windows systems will have a similar path to the wiring.c file. micros () works initially, but will start behaving erratically after 1-2 ms. 1 Answer Sorted by: 10 The source code for this function is fairly well documented and can be found in /usr/share/arduino/hardware/arduino/cores/arduino/wiring.c on Linux systems. ![]() Since delay () requires interrupts to work, it will not work if called inside an ISR. millis () relies on interrupts to count, so it will never increment inside an ISR. But as the Arduino Micro has no Timer2, TCCR2B, I cannot use the same code on the Arduino Micro.Įven if I understand the code (I wrote a lot in other languages.), some of the Atmel chip specific parameters are not clear. The documentation for attachInterrupt () says. What this means is that anything that relies on an interrupt (millis, micros, Serial.print for example) will simply not work. So I used the Arduino as a PWM driver for 8 RGB or 24 (3*8) white LEDs. The first thing Arduino does in entering an ISR is to disable global interrupts until it exits the ISR. I also don't know exactly what the proper keywords are that I need to find the relation between timers and pins.Īs I for now just got some stuff from my local dealer I have no access to shift registers, PWM drivers and other proper integrated circuits. I cannot find any information about the Arduino Micro. Most simple things work on all devices, but if you start with complex code to fasten up things, every device is a little different.Ī problem I could not solve for days now is the relation between pins and timers. I'm planning to also get a Mega and others. The one I mostly use is the Uno and Micro for now. That is mandatory if you need to measure some data requiring better accuracy. Moreover, they are much more precise (certainly depending on clock frequency accuracy) than other software timers using millis() or micros(). Where do I find the pins relative to timers of each individual Arduino microcontroller?Īs I like Arduino's I already have various samples of them. These RPIPICOTimerInterrupt Hardware Timers, using Interrupt, still work even if other functions are blocking. ![]()
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