PCDIDE COMPILER Custom Computer Services Inc (CCS), PCDIDE COMPILER Datasheet - Page 248

• Manufacturer Part Number: PCDIDE COMPILER
• Description: PCD C-COMPILER PIC24, DSPIC
• Manufacturer: Custom Computer Services Inc (CCS)
• Type: Compilerr

Specifications of PCDIDE COMPILER

• For Use With/related Products: Microchip PIC24/dsPIC®
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Other names: 429-1008

read_adc( ) read_adc2( )
Syntax:
Parameters:
Returns:
Function:
Availability:
Requires:
Examples:
Example Files:
Also See:
234
value = read_adc ([mode])
value = read_adc2 ([mode])
mode is an optional parameter. If used the values may be:
ADC_START_AND_READ (continually takes readings, this is the default)
ADC_START_ONLY (starts the conversion and returns)
ADC_READ_ONLY (reads last conversion result)
Either a 8 or 16 bit int depending on #DEVICE ADC= directive.
This function will read the digital value from the analog to digital converter. Calls to
setup_adc(), setup_adc_ports() and set_adc_channel() should be made
sometime before this function is called. The range of the return value depends on
number of bits in the chips A/D converter and the setting in the #DEVICE ADC=
directive as follows:
Note: x is not defined
Only available on devices with built in analog to digital converters.
Pin constants are defined in the devices .h file.
int16 value;
setup_adc_ports(sAN0|sAN1, VSS_VDD);
setup_adc(ADC_CLOCK_DIV_4|ADC_TAD_MUL_8);
while (TRUE)
{
}
ex_admm.c,
setup_adc(), set_adc_channel(), setup_adc_ports(), #DEVICE,
#DEVICE
ADC=8
ADC=10
ADC=11
ADC=12
ADC=16
set_adc_channel(0);
value = read_adc();
printf(“Pin AN0 A/C value = %LX\n\r”, value);
delay_ms(5000);
set_adc_channel(1);
read_adc(ADC_START_ONLY);
...
value = read_adc(ADC_READ_ONLY);
printf("Pin AN1 A/D value = %LX\n\r", value);
10 bit
00-FF
0-3FF
x
0-FFC
0-FFC0
12 bit
00-FF
0-3FF
0-FFF0
x
0-FFF
ADC Overview