PIC16F72X_触摸按键模块源码

if (Buttons.BTN4) // called 'button_pressed' s.t. button_pressed=index.
DisplayLEDs(4); // Then, main loop code would simply require:
// Incorporated (the "Company") is intended and supplied to you, the
// Company抯 customer, for use solely and exclusively on Microchip
// products. The software is owned by the Company and/or its supplier,
// IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL OR
// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
//
//******************************************************************************
if (Buttons.BTN1) // more application code, but reduces isr code.
DisplayLEDs(1); // It also allows reaction to different buttons at
bank2 unsigned int threshold128; // Threshold of 1/128th = 1/128th of the average value
bank2 unsigned int threshold64; // ... used in computation of threshold variable
#if METHOD == 4
__CONFIG(INTIO & WDTEN & PWRTEN & MCLRDIS & UNPROTECT);
#else
__CONFIG(INTIO & WDTDIS & PWRTEN & MCLRDIS & UNPROTECT);
#endif
/** Variables **/
bank2 unsigned int threshold32; // ... threshold is a selection of the sum of these
bank2 unsigned int threshold16; // "
bank2 unsigned int threshold8; // "
BButtons Buttons; // Buttons struct variable indicates button presses
unsigned int bigval; // current button bigval - for averaging technique
if (Buttons.BTN2) // the same time.
DisplayLEDs(2);
if (Buttons.BTN3) // ALTERNATIVE:
DisplayLEDs(3); // For ea. case in the isr, create and set a variable
bank1 unsigned int reading[NUM_BTTNS]; // current reading for each button
bank1 unsigned int average[NUM_BTTNS]; // running average for each button
//******************************************************************************
// Software License Agreement
//
// The software supplied herewith by Microchip Technology
while (1) { // Loop forever
// React to button presses in application main-loop
if (Buttons.BTN0)
DisplayLEDs(0); // Structuring code based off each button takes up
// When a pad is touched, the frequency on the Cap. sensing module changes due to the
// extra capacitance from the finger. The change in frequency is noted and the LEDs
bank1 unsigned int threshold; // tcrease from avg
unsigned char index; // index value relates ea. button and scanning sequence
if (Buttons.BTN5) // DisplayLEDs(button_pressed);
DisplayLEDs(5);
if (Buttons.BTN6)
// and is protected under applicable copyright laws. All rights are
// reserved. Any use in violation of the foregoing restrictions may
// subject the user to criminal sanctions under applicable laws, as
// *****************************************************************************
#include <pic.h>
#include "Cap_Sense.h"
#define METHOD 4 // 1= Timer0 Base; 2= Timer2 Base; 3= WDT base; 4=WDT Sleep Base
void RestartTimer1(void);
void SetNextChannel(void);
void CapInit(void);
void DisplayLEDs(char i);
void interrupt isr(void);
void SLEEP_NOP(void);
/*====================================================================
// This program scans 16 pads on a PCB. Each pad is sensed by the Capacitive
// Sensing Module at a fixed interval. The frequency of each pad at rest is averaged.l
bank2 unsigned int threshold4; // "
bank2 unsigned int threshold2; // Threshold value for 1/2
FFlags Flags; // Flags struct variable contains application status
// light up to indicate which button was pressed.
// *****************************************************************************
//
// Compiler: Hi-Tech PIC-C v.9.60
// *****************************************************************************
// Filename: Main727.c
// Date: Dec. 13, 2007
// Purpose: Illustrate the use of the Capacitive Sensing Module
// well as to civil liability for the breach of the terms and
// conditions of this license.
//
// THIS SOFTWARE IS PROVIDED IN AN "AS IS" CONDITION. NO WARRANTIES,
// WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED
// TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. THE COMPANY SHALL NOT,