Part Number:MSP430F1611
Dear All,
I am currently trying to build a counter that increments every 7.25ms.
My device is TelosB, which is MSP430F1611 with Crystal Oscilator of 32768Hz.
I set the Timer_B with ACLK which is the crystal and as time = number of counts/frequency.
To increment every 7.25ms, 328 counts are required. Please refer to the code attached.
I have an issue, because two of capture/compare reigsters are occupied for radio capture and interval.
Here I declared
void sctimer_asncounter(void){
TBCCTL3 = CCIE;
TBCCR3 = 328;
TBCCTL3 |= CCIFG;
}
which triggers the appropriate interrupt handler.
case 0x0006: // CCR3 fires
if (TBCCTL3 & CCI){
if(sctimer_vars.asnreadcb !=NULL){
sctimer_vars.asnreadcb();
// kick the OS
return KICK_SCHEDULER;
}
}
where
void cb_asnread(void){
app_vars.num_asn++;
uart_writeByte(app_vars.num_asn);
sctimer_asncounter();
sctimer_setCompare(sctimer_readCounter()+SCTIMER_PERIOD);
}
So it should constantly increases app_vars.numb_asn++ every 7.25ms but for somereason I can't even compile the code.
any help will be greatly appreicated.
Thank you.
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