Hi, I have configured Timer 0 of the LPC932 to count about one second and then display 0x55 on port 2. Is the timer right configured?
I do not know why it is not executing the ISR. How could I test this better.
Will this work?
Thank you!


void Time_Base(void)
{
ET0 =1;
TR0 = 0;
TMOD |= 0x01;
TAMOD = 0x00; // 7.373MHz internal RC oscillator
TH0 = (65536-30720)/256; // 34816,
TL0 = (65536-30720)%256; // .2
TF0 = 0;
TCON = 0x10;
EA = 1;
}

void timer(void) interrupt 1
{
Time_Base();
Sec_Counter++;
if (Sec_Counter == 20) // if 1 sec have passed
{
Sec_Counter = 0;
TR0 = 0;
P2 = 0x55;
}
}