My aim is to generate 1msec timer interrupt.
The Device i am using is MC9S12G Family (MC9S12G128).
To get the 1msec interrupt I used channel 0 as a output compare and no output required on the pins. For this I configured following registers (other timer registers are set to default state),
TIOS = 0x01;
TC0 = 0x5D02; /* 1msec value for output compare, Bus clk = 24Mhz, Prescaler = 1 */
TSCR1 = 0xE0;
TIE = 0x01;
TSCR2 = 0x80;
Here Channel 0 will gives the interrupt after output compare value matches that is 1msec.
So here i am not understanding when will be Timer overflow interrupt occurs ? as I have enabled in TSCR2.
Also How to set the Timer Overflow Interrupt after every 1msec ? If i don't want to use channel registers or output compare.
interrupt 8 void CH0_ISR(void)
TC0 = TC0 + 0x5D02;
TFLG1 = 0x01; //clear interrupt flag
interrupt 16 void TOI_ISR(void)
TFLG2 = 0x80; //clear interrupt flag
Any help is appreciated.