CCS C Compiler Manual PCB / PCM / PCH

pwm_set_frequency
Syntax:
Parameters:
Returns:
Function:
Availability:
Requires:
Examples:
Example Files:
Also See:
pwm_set_frequency([stream],frequency);
stream – optional parameter specifying the stream defined in
#USE PWM.
frequency – an int32 constant or variable specifying the new
PWM frequency.
Nothing.
To change the frequency of the PWM signal. Warning this
may change the resolution of the PWM signal.
All devices.
#USE PWM
#USE PWM(OUTPUT=PIN_C2, FREQUENCY=10kHz, DUTY=25)
pwm_set_frequency(1000); //set PWM frequency to 1kHz
None
#use_pwm, pwm_on(), pwm_off(), pwm_set_duty_percent,
pwm_set_duty()
qei_get_count( )
Syntax: value = qei_get_count( [type] );
Parameters:
type - Optional parameter to specify which counter to get, defaults to position
counter. Defined in devices .h file as:
QEI_GET_POSITION_COUNT
QEI_GET_VELOCITY_COUNT
Returns:
Function:
Availability:
Requires:
Examples:
Example
Files:
Also See:
The 16-bit value of the position counter or velocity counter.
Reads the current 16-bit value of the position or velocity counter.
Devices that have the QEI module.
Nothing.
value = qei_get_counter(QEI_GET_POSITION_COUNT);
value = qei_get_counter();
value = qei_get_counter(QEI_GET_VELOCITY_COUNT);
None
setup_qei() , qei_set_count() , qei_status().
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