CCS C Compiler Manual PCB / PCM / PCH

Built-in Functions
Returns:
Function:
undefined
Writes the 10-bit value to the PWM to set the duty. An 8-bit value may be
used if the most significant bits are not required. The 10 bit value is then used
to determine the duty cycle of the PWM signal as follows:
duty cycle = value / [ 4 * (PR2 +1 ) ]
Where PR2 is the maximum value timer 2 will count to before toggling the
output pin.
Availability:
Requires:
Examples:
This function is only available on devices with CCP/PWM hardware.
Nothing
// For a 20 mhz clock, 1.2 khz frequency,
// t2DIV set to 16, PR2 set to 200
// the following sets the duty to 50% (or 416 us).
long duty;
duty = 408; // [408/(4*(200+1))]=0.5=50%
set_pwm1_duty(duty);
Example Files:
Also See:
ex_pwm.c
setup_ccpX(), CCP1 Overview
set_rtcc( ) set_timer0( ) set_timer1( ) set_timer2( )
set_timer3( ) set_timer4( ) set_timer5( )
Syntax: set_timer0(value) or set_rtcc (value)
set_timer1(value)
set_timer2(value)
set_timer3(value)
set_timer4(value)
set_timer5(value)
Parameters:
Returns:
Function:
Timers 1 & 5 get a 16 bit int.
Timer 2 and 4 gets an 8 bit int.
Timer 0 (AKA RTCC) gets an 8 bit int except on the PIC18XXX where it
needs a 16 bit int.
Timer 3 is 8 bit on PIC16 and 16 bit on PIC18
undefined
Sets the count value of a real time clock/counter. RTCC and Timer0 are the
same. All timers count up. When a timer reaches the maximum value it will
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