我正在进行一项任务，在按下主板上的按钮时会拨打电话号码。目前我有电话拨打我选择的号码，但是他们一个接一个地拨号而不是按下按钮。我的循环中是否有一些真正基本的东西？
/*
* File: assignment5.c
*
*/
// CONFIG1
#pragma config FOSC = INTOSC // Oscillator Selection Bits (INTOSC oscillator: I/O function on CLKIN pin)
#pragma config WDTE = OFF // Watchdog Timer Enable (WDT disabled)
#pragma config PWRTE = OFF // Power-up Timer Enable (PWRT disabled)
#pragma config MCLRE = ON // MCLR Pin Function Select (MCLR/VPP pin function is MCLR)
#pragma config CP = OFF // Flash Program Memory Code Protection (Program memory code protection is disabled)
#pragma config BOREN = ON // Brown-out Reset Enable (Brown-out Reset enabled)
#pragma config CLKOUTEN = OFF // Clock Out Enable (CLKOUT function is disabled. I/O or oscillator function on the CLKOUT pin)
#pragma config IESO = OFF // Internal/External Switchover Mode (Internal/External Switchover Mode is disabled)
#pragma config FCMEN = OFF // Fail-Safe Clock Monitor Enable (Fail-Safe Clock Monitor is disabled)
// CONFIG2
#pragma config WRT = ALL // Flash Memory Self-Write Protection (000h to 1FFFh write protected, no addresses may be modified by PMCON control)
#pragma config CPUDIV = CLKDIV6 // CPU System Clock Selection Bit (CPU system clock divided by 6)
#pragma config USBLSCLK = 48MHz // USB Low SPeed Clock Selection bit (System clock expects 48 MHz, FS/LS USB CLKENs divide-by is set to 8.)
#pragma config PLLMULT = 3x // PLL Multipler Selection Bit (3x Output Frequency Selected)
#pragma config PLLEN = DISABLED // PLL Enable Bit (3x or 4x PLL Disabled)
#pragma config STVREN = ON // Stack Overflow/Underflow Reset Enable (Stack Overflow or Underflow will cause a Reset)
#pragma config BORV = LO // Brown-out Reset Voltage Selection (Brown-out Reset Voltage (Vbor), low trip point selected.)
#pragma config LPBOR = OFF // Low-Power Brown Out Reset (Low-Power BOR is disabled)
#pragma config LVP = OFF // Low-Voltage Programming Enable (High-voltage on MCLR/VPP must be used for programming)
#include <stdio.h>
#include <stdlib.h>
#include <xc.h>
#define _XTAL_FREQ 4000000
#include <stdio.h>
#include <stdlib.h>
/*
*
*/
void pulse(void){
RC6 = 0; //drop clock
__delay_us(5);
RC6 = 1;
__delay_us(5);
}
void tone_0(){
char i;
RC7 =0; //data low
pulse();
RC7 =1;
pulse();
RC7 =0;
pulse();
RC7 =1;
pulse();
RC7 = 0;
pulse();
__delay_ms(195);
// RC7 = 1;
//for (i = 0;i<5;i++)
// pulse();
//__delay_ms(195);
}
void tone_1(){
char i;
RC7 =1; //data low
pulse();
RC7 =0;
pulse();
RC7 =0;
pulse();
RC7 =0;
pulse();
RC7 = 0;
pulse();
__delay_ms(195);
// RC7 = 1;
//for (i = 0;i<5;i++)
//pulse();
//__delay_ms(195);
}
void tone_2(){
char i;
RC7 = 0; //data low
pulse();
RC7 = 1;
pulse();
RC7 =0;
pulse();
RC7 = 0;
pulse();
RC7 = 0;
pulse();
__delay_ms(195);
//RC7 = 1;
//for (i = 0;i<5;i++)
//pulse();
//__delay_ms(195);
}
void tone_3(){
char i;
RC7 =1; //data low
pulse();
RC7 =1;
pulse();
RC7 =0;
pulse();
RC7 =0;
pulse();
RC7 = 0;
pulse();
__delay_ms(195);
//RC7 = 1;
//for (i = 0;i<5;i++)
// pulse();
//__delay_ms(195);
}
void tone_4(){
char i;
RC7 = 0; //data low
pulse();
RC7 =0;
pulse();
RC7 = 1;
pulse();
RC7 = 0;
pulse();
RC7 = 0;
pulse();
__delay_ms(195);
// RC7 = 1;
//for (i = 0;i<5;i++)
//pulse();
//__delay_ms(195);
}
void tone_5(){
char i;
RC7 =1; //data low
pulse();
RC7 = 0;
pulse();
RC7 = 1;
pulse();
RC7 = 0;
pulse();
RC7 = 0;
pulse();
__delay_ms(195);
//RC7 = 1;
//for (i = 0;i<5;i++)
// pulse();
//__delay_ms(195);
}
void tone_6(){
char i;
RC7 = 0; //data low
pulse();
RC7 = 1;
pulse();
RC7 = 1;
pulse();
RC7 = 0;
pulse();
RC7 = 0;
pulse();
__delay_ms(195);
//RC7 = 1;
//for (i = 0;i<5;i++)
//pulse();
//__delay_ms(195);
}
void tone_7(){
char i;
RC7 = 1; //data low
pulse();
RC7 = 1;
pulse();
RC7 = 1;
pulse();
RC7 = 0;
pulse();
RC7 = 0;
pulse();
__delay_ms(195);
//RC7 = 1;
//for (i = 0;i<5;i++)
//pulse();
//__delay_ms(195);
}
void tone_8(){
char i;
RC7 = 0; //data low
pulse();
RC7 = 0;
pulse();
RC7 = 0;
pulse();
RC7 = 1;
pulse();
RC7 = 0;
pulse();
__delay_ms(195);
//RC7 = 1;
//for (i = 0;i<5;i++)
//pulse();
//__delay_ms(195);
}
void tone_9(){
char i;
RC7 = 1; //data low
pulse();
RC7 = 0;
pulse();
RC7 = 0;
pulse();
RC7 = 1;
pulse();
RC7 = 0;
pulse();
__delay_ms(195);
//RC7 = 1;
//for (i = 0;i<5;i++)
//pulse();
//__delay_ms(195);
}
char dial(char i)
{
if(i == 0)
{
tone_6();
}
if(i == 1)
{
tone_7();
}
if(i == 2)
{
tone_3();
}
if(i == 3)
{
tone_3();
}
if(i == 4)
{
tone_8();
}
if(i == 5)
{
tone_6();
}
if(i == 6)
{
tone_9();
}
i++;
if(i > 6)
i = 0;
return i;
}
void main(){
char i = 0;
char buttontoggle = 0;
char count = 0;
__delay_ms(190);
OSCCON =0b00110100;
TRISC = 0;
ANSELC = 0;
TRISA = 0b11111111;
WPUB6 = 1;
PORTC = 0b10000100; //clock high, data high, CE high
__delay_ms(10);
RC2 = 0; //turn it on.
__delay_ms(10);
while(1)
{
if(RB6 == 0 )
{
buttontoggle = 0;
}
if(RB6 == 1)
{
buttontoggle = 1;
}
if( buttontoggle == 1)
{
count = dial(count);
}
}
/*while (1){
RC2 = 0; //turn it on.
__delay_ms(50);
RC7 =1; //data low
pulse();
RC7 =0;
pulse();
RC7 =0;
pulse();
RC7 =1;
pulse();
RC7 = 0;
pulse();
__delay_ms(195);
RC7 = 1;
for (i = 0;i<5;i++) pulse();
__delay_ms(195);
RC2 =1;
}*/
}
答案 0 :(得分：0)
也许您需要查看硬件。您尚未设置端口B，但我们假设它是输入。 RB6的值是否会变低？
如果RB6设置正确，只要按下该按钮，该代码就会连续拨打您的号码（即没有逃脱）。
您的拨号例程（正在请求一个案例陈述！）也会自动修改参数i，并返回它，然后将返回值分配给调用参数（count）。这有点令人费解，可能会引起奇怪的行为。