CCS C Compiler Manual PCB / PCM / PCH

Built-in Functions
ADC_CLOCK_DIV_32
Returns:
Function:
Availability:
Requires:
Examples:
Example Files:
Also See:
undefined
Configures the analog to digital converter.
Only the devices with built in analog to digital converter.
Constants are defined in the devices .h file.
setup_adc_ports( ALL_ANALOG );
setup_adc(ADC_CLOCK_INTERNAL );
set_adc_channel( 0 );
value = read_adc();
setup_adc( ADC_OFF );
ex_admm.c
setup_adc_ports(), set_adc_channel(), read_adc(), #DEVICE, ADC
Overview,
see header file for device selected
setup_adc_ports( )
Syntax:
setup_adc_ports (value)
setup_adc_ports (ports, [reference])
Parameters: value - a constant defined in the devices .h file
ports - is a constant specifying the ADC pins to use
reference - is an optional constant specifying the ADC reference to use
By default, the reference voltage are Vss and Vdd
Returns:
Function:
undefined
Sets up the ADC pins to be analog, digital, or a combination and the voltage
reference to use when computing the ADC value. The allowed analog pin
combinations vary depending on the chip and are defined by using the bitwise OR
to concatenate selected pins together. Check the device include file for a complete
list of available pins and reference voltage settings. The constants ALL_ANALOG
and NO_ANALOGS are valid for all chips. Some other example pin definitions are:
Also See:
setup_adc(), read_adc(), set_adc_channel(), ADC Overview
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