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How to use Timer0 in your Visual Studio project (Read 2366 times)

Posts: 6
How to use Timer0 in your Visual Studio project
Aug 16th, 2015 at 5:00pm
Hi All,
I have a project where I need to have all 3 timers in PWM mode, and their associated interrupts as well. I use very little of the ardunio core library apart from Serial (and probably the boot vectors).

However the project won't build due to ISR(TIMER0_OVF_vect) already defined in wiring.c
cora.a(wiring.c.o)*:In function 'delayMicroseconds'
collect2*:error ld returned 1 exit status
Error creating .elf
Is there a simple way of removing the arduino core from the build (or include just parts of it), as the inclusion of core.a doesn't appear to be in the project properties under dev studio.

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Re: How to use Timer0 in your Visual Studio project
Reply #1 - Aug 16th, 2015 at 6:33pm
An arduino.h include and compile of the files in core are always made, it's how arduino works.

But you can create your own cores, starting with a clone of the arduino core and then changing or removing whatever you want.

You should also ensure you are using visual micro in release mode or via SoftwareSerial otherwise Serial will also be included in your program (behind the scenes)

Cloning a core is not that simple. What can be easier is to clone your arduino ide then hack the arduino\hardware\arduino\avr\cores
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