Just to make sure: Can i use TIMER1 & Serial Com?

Forum 2005-2010 (read only) Software Syntax & Programs
#1

hey folks,

i want to control 60 pwm-driven leds via serial communication. serial for itself works – the software pwm too. i tried all the timers of my arduino mega but none seems to work with the serial com.

maybe the error is somewhere else? so i would like to know if it SHOULD work with TIMER1.

thanks in advance!

bye

h

#2

I can only speak for the non mega boards.

Serial I/O + Timer1/2 interrupt works, given the ISR code is short enough. If the cpu has to spend most of it's time serving the timer interrupts, the chance of interfering with serial I/O gets bigger.

#3

thanks!

i think that's my problem. 56 Leds software-pwm is a bit too much? most of that is happening inside of the isr :(

merci

#4