4 analog.c source code listing, Analog.c – Arizona Picdem 17 User Manual

Page 69

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2001 Microchip Technology Inc.

DS39024B-page 63

ANALOG.C

Description

7.4

ANALOG.C

Source Code Listing

//****************************************************

//* ANALOG.C

//****************************************************

//* Rodger Richey

//* Principal Applications Engineer

//* Microchip Technology Incorporated

//****************************************************

//* 2 December 1998

//* Compiled using MPLAB C17 C Compiler V2.20

//****************************************************

//* This program performs an A/D conversion on CH2

//* and prints the result in ASCII to USART2 which

//* displays the result on the Monitor program.

//****************************************************

//* Uses an oscillator of 16MHz

//****************************************************

#include <p17c756.h>

#include <delays.h>

#include <usart16.h>

#include <stdlib.h>

#include <adc16.h>

void PutsUSART2(char *data);

// Prints a string to USART2 using hardware handshaking;

void PutsUSART2(char *data)

{

do

{

// Wait for the USART to finish prev operation

while(BusyUSART2());

// Wait for CTS

while(PORTBbits.RB4);

// Print character to USART2

putcUSART2(*data);

} while(*data++); // Increment pointer and check for NULL

return;

}

void main(void)

{

unsigned int result;

char str[7];

char crlf[3];

// Initialize the carriage return/linefeed string

crlf[0] = 0x0d;

crlf[1] = 0x0a;

crlf[2] = 0;

// Initialize USART2 and the hardware handshaking lines

PORTBbits.RB5 = 1;

DDRBbits.RB5 = 0;

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