Getting Started

Chapter 7: Microcontroller Interrupts and Timers

sendString("Error - Parse_set received a

non integer: ");

);

256

dSt oo large\r");

set_speed(atoi(set));

oid set_speed(int count)

ed[11];

em oscillator to 2 mHz. We set the
Timer0 prescaler to clk/8 which gives a 250 kHz input to the
re of 250 throws an interrupt every

SK0 = (1<<OCIE0A);

sendChar(s[i]
sendChar('\r');
return 0;
}
}

set[j] = '\0';

if(j>4)// must be <
{
sen ring("Error - Parse_set number t
return 0;
}
else
{

}

return 1;
}

v
{
char spe

sendString("Setting the Compare Timer Count to: ");
itoa(count,speed,10);
sendString(speed);
sendChar('\r');

milliSecInit(count);
}

/*
The USART init set the syst

timer/counter. A compa
millisecond.
*/
void milliSecInit(unsigned char count)
{
// Enable timer0 compare interrupt
TIM