PIC18F87K22-I/PTRSL Microchip Technology Inc., PIC18F87K22-I/PTRSL Datasheet - Page 392

• Manufacturer Part Number: PIC18F87K22-I/PTRSL
• Description: 128kB Flash, 4kB RAM, 1kB EE, nanoWatt XLP, GP, 80 TQFP 12x12x1mm TRAY
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F87K22-I/PTRSL

• A/d Inputs: 24-Channel, 12-Bit
• Comparators: 3
• Cpu Speed: 16 MIPS
• Eeprom Memory: 0 Bytes
• Input Output: 69
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 80-pin TQFP
• Programmable Memory: 128K Bytes
• Ram Size: 3.8K Bytes
• Speed: 64 MHz
• Temperature Range: –40 to 125 °C
• Timers: 6-8-bit, 5-16-bit
• Voltage, Range: 1.8-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F87K22 FAMILY
EXAMPLE 27-1:
DS39960C-page 392
#include "p18cxxx.h"
/**************************************************************************/
/*Setup CTMU *****************************************************************/
/**************************************************************************/
void setup(void)
{ //CTMUCON - CTMU Control register
/**************************************************************************/
//Setup AD converter;
/**************************************************************************/
}
ADCON2bits.ADCS=2;
// ADCON0
ADCON1bits.VCFG0 =0;
ADCON0bits.VCFG1 =0;
ADCON0bits.VCFG = 0;
ADCON0bits.CHS=2;
ADCON0bits.ADON=1;
CTMUCONH = 0x00;
CTMUCONL = 0X90;
//CTMU continues to run when emulator is stopped,CTMU continues
//to run in idle mode,Time Generation mode disabled, Edges are blocked
//No edge sequence order, Analog current source not grounded, trigger
//output disabled, Edge2 polarity = positive level, Edge2 source =
//source 0, Edge1 polarity = positive level, Edge1 source = source 0,
// Set Edge status bits to zero
//CTMUICON - CTMU Current Control Register
CTMUICON = 0x01;
TRISA=0x04;
// Configured AN2 as an analog channel
// ANCON0
ANCON0 = 0X04;
// ANCON1
ANCON1 = 0XE0;
// ADCON2
ADCON2bits.ADFM=1;
ADCON2bits.ACQT=1;
SETUP FOR CTMU CALIBRATION ROUTINES
//make sure CTMU is disabled
//0.55uA, Nominal - No Adjustment
//set channel 2 as an input
// Resulst format 1= Right justified
// Acquition time 7 = 20TAD 2 = 4TAD 1=2TAD
// Clock conversion bits 6= FOSC/64 2=FOSC/32
// Vref+ = AVdd
// Vref+ = AVdd
// Vref- = AVss
// Select ADC channel
// Turn on ADC
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