CCS C Compiler Manual PCB / PCM / PCH

detect is also available in the device
LVD_TRIGGER_BELOW, LVD_TRIGGER_ABOVE
Returns:
Function:
Availability:
Requires
undefined
This function controls the high/low voltage detect module in the device.
The mode constants specifies the voltage trip point and a direction of
change from that point (available only if high voltage detect module is
included in the device). If the device experiences a change past the trip
point in the specified direction the interrupt flag is set and if the interrupt
is enabled the execution branches to the interrupt service routine.
This function is only available with devices that have the high/low
voltage detect module.
Constants are defined in the devices.h file.
Examples:
setup_low_volt_detect( LVD_TRIGGER_BELOW | LVD_36 );
This would trigger the interrupt when the voltage is below 3.6 volts
setup_nco( )
Syntax:
Parameters:
setup_nco(settings,inc_value)
settings- setup of the NCO module. See the device's .h file for all options.
Some typical options include:
· NCO_ENABLE
· NCO_OUTPUT
· NCO_PULSE_FREQ_MODE
· NCO_FIXED_DUTY_MODE
inc_value- int16 value to increment the NCO 20 bit accumulator by.
Returns:
Function:
Availability:
Examples:
Example Files:
Undefined
Sets up the NCO module and sets the value to increment the 20-bit accumulator b
On devices with a NCO module.
setup_nco(NCO_ENABLED|NCO_OUTPUT|NCO_FIXED_DUTY_MODE|
NCO_CLOCK_FOSC,8192);
None
Also See: get_nco_accumulator( ), set_nco_inc_value( ), get_nco_inc_value( )
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