Using all the Output compare and Overflow timer Interrupts at a time

Kalyan — Fri, 07 Apr 2006 19:18:10 GMT

Hi everyone,

i'm working with MC9S12NE64 processor.

right now i'm facing some problem using the timers.

i'm not facing any problem using all the output compare timers (TC4, TC5,TC6 and TC7) together.

but, once i use Overflow timer (Standard overflow timer), the processor is behaving strangely. the Timer overflow is not occuring at the right time.

to give more info on the problem;-

i'm not programming the TCNT register. and i'm installing the Interrupt handler for the same and assigning TSCR2 = 0x80 and TSCR1 = 0x90.

and i'm installing all the handlers for output compare interrupts (12,13,14,15 interrupt vectors) and setting TIOS = 0xF0. in the ISR of individual output compare ports, i'm assigning some value + TCNT. that is for example

TC4 = 0x1DFC + TCNT.

TC5 = 0x1DFC + TCNT.

TC6 = 0x1DFC + TCNT.

TC7 = 0x1DFC + TCNT.

please let me know if i'm not doing any thing correctly.

and tell me if i can simultaniously use all the output compare timers as well as overflow timer.

Re: Using all the Output compare and Overflow timer Interrupts at a time

PsychoDebugger — Mon, 23 Apr 2007 22:27:56 GMT

It can be useful timeout with output compare

S12 / MagniV MicrocontrollersのトピックUsing all the Output compare and Overflow timer Interrupts at a time

Using all the Output compare and Overflow timer Interrupts at a time

Re: Using all the Output compare and Overflow timer Interrupts at a time