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PCD
// PIC16F/LF193X – Enables Segments 0, 3, 5, 10, 16, 17,
18, 19, 20, 21, 22, 23
Example
Files:
Also See:
ex_92lcd.c
lcd_symbol(), lcd_load(), lcd_contrast( ), Internal LCD Overview
setup_low_volt_detect( )
Syntax:
setup_low_volt_detect( mode )
Parameters: mode may be one of the constants defined in the devices .h file. LVD_LVDIN,
LVD_45, LVD_42, LVD_40, LVD_38, LVD_36, LVD_35, LVD_33, LVD_30,
LVD_28, LVD_27, LVD_25, LVD_23, LVD_21, LVD_19
One of the following may be or’ed(via |) with the above if high voltage detect is also
available in the device
LVD_TRIGGER_BELOW, LVD_TRIGGER_ABOVE
Returns:
Function:
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.
Availability: This function is only available with devices that have the high/low voltage detect
module.
Requires
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 f or all options.
Some typical options include:
· NCO_ENABLE
· NCO_OUTPUT
· NCO_PULSE_FREQ_MODE
268
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