一个两路ADC采样两路PWM输出可调程序 -

#include "stc12c5a60s2.h"
#include "intrins.h"
#include "adc.h"
#include "key.h"
#include "pwm.h"
#include "lcd1602.h"
#define U8 unsigned char
#define uint unsigned int
#define uchar unsigned char
#define ADC_POWER 0x80 //ADC power control bit 电源控制位
#define ADC_FLAG 0x10 //ADC complete flag 标志位
#define ADC_START 0x08 //ADC start control bit 启动控制位
#define ADC_SPEEDLL 0x00 //420 clocks
#define ADC_SPEEDL 0x20 //280 clocks
#define ADC_SPEEDH 0x40 //140 clocks
#define ADC_SPEEDHH 0x60 //70 clocks
unsigned char in_str[]="0.00V";
unsigned char d[5];
uint ch=0, number=0;
uint light_input, key_input, shi_input;
void ADC_Init(); // 初始化AD
void Delay(unsigned int z); // 延时
void ADC_lcd1602();
void ADC_start()
{
uint a = 0;
PWM_Initial();
PWM_clock(2); // PCA/PWM时钟源为定时器0的溢出
while(1)
{
ADC_lcd1602();
a = KeyPro();
if(a == 0)
{
PWM_start(0,1);
CCAP0L = 0XC0;
CCAP0H = 0XC0; //模块0初始输出占空因数为25%
PWM_start(1,1);
CCAP1L = 0XC0;
CCAP1H = 0XC0; //模块1初始输出占空因数为25%
}
else if(a == 1)
{
PWM_start(0,1);
CCAP0L = 0X80;
CCAP0H = 0X80; //模块0初始输出占空因数为50%
PWM_start(1,1);
CCAP1L = 0X40;
CCAP1H = 0X40; //模块1初始输出占空因数为75%
}
else if(a == 2)
{
PWM_start(0,1);
CCAP0L = 0X40;
CCAP0H = 0X40; //模块0初始输出占空因数为75%
PWM_start(1,1);
CCAP1L = 0X40;
CCAP1H = 0X40; //模块1初始输出占空因数为75%
}
else if(a == 3)
{
PWM_start(0,1);
CCAP0L = 0X80;
CCAP0H = 0X80; //模块0初始输出占空因数为50%
PWM_start(1,1);
CCAP1L = 0X80;
CCAP1H = 0X80; //模块1初始输出占空因数为50%
}
}
}
void ADC_lcd1602()
{
uint L = 0, K = 0;
if (number==8000)
{
shi_input =shi_input&0xff;
L = (uint)((4700l*shi_input)/255);
d[1] = L / 1000; //最高位
L = L % 1000;
d[2] = L / 100; //次高位
L = L % 100;
d[3] = L /10; //...
d[4] = L % 10; //....
num_lcdDis(0,0x06,d[4],2);
num_lcdDis(0,0x05,d[3],2);
num_lcdDis(0,0x04,d[2],2);
num_lcdDis(0,0x03,d[1],2);
num_lcdDis(0,0x02,d[0],2);
// delay5ms();
light_input = light_input&0xff;
K = (uint)((4700l*light_input)/255);
in_str[1] = K / 1000; //最高位
K = K % 1000;
in_str[2] = K / 100; //次高位
K = K % 100;
in_str[3] = K /10; //...
in_str[4] = K % 10; //....
num_lcdDis(1,0x06,in_str[4],2);
num_lcdDis(1,0x05,in_str[3],2);
num_lcdDis(1,0x04,in_str[2],2);
num_lcdDis(1,0x03,in_str[1],2);
num_lcdDis(1,0x02,0,2);
// delay5ms();
number=0;
}
}
void ADC_Init()
{
ADC_RES = 0; //清除上次采集的结果
IE=0xa0;
P1ASF=0xe0; //设置AD输入通道为 P1.0-1.2
ADC_CONTR = ADC_POWER | ADC_SPEEDLL | ADC_START|ch ; //选择开启的通道
Delay(2); //上电启动AD转换的延时
}
void Delay(unsigned int n)
{
unsigned int x;
while (n--)
{
x=5000;
while (x--);
}
}
void ADC_isr(void) interrupt 5 using 1 //中断服务程序,每100ms读一次AD
{
ADC_CONTR &= !ADC_FLAG;
if (number==20)
{
if (ch==0 )
{
shi_input= ADC_RES;
}
else if(ch==1)
{
light_input= ADC_RES;
//light_input = 127;
}
//else if (ch==2) { key_input= ADC_RES; }
if(++ch>1)
ch=0;
}
number++;
ADC_CONTR = ADC_POWER | ADC_SPEEDLL | ADC_START|ch ;
}

复制代码

#include<reg52.h>
#include "pwm.h"
#include "key.h"
#include "adc.h"
#include <intrins.h>
#define U8 unsigned char
#define U16 unsigned int
void PWM_clock(U8 clock);
void PWM_start(U8 Module,U8 mode);
void PMW_mode(void);
U16 count = 0;
void DelayMs(U8 ms) //在11.0592M晶振下，stc10f系列（单周期指令）的ms级延时
{
U16 i;
while(ms--)
{
for(i = 0; i < 850; i++);
}
}
sfr CCON = 0xD8; //PCA控制寄存器
sfr CMOD = 0xD9; //PCA模式寄存器
sfr CCAPM0 = 0xDA; //PCA模块0模式寄存器 //模块0对应P1.3/CEX0/PCA0/PWM0(STC12C5A60S2系列)
sfr CCAPM1 = 0xDB; //PCA模块1模式寄存器 //模块1对应P1.4/CEX1/PCA1/PWM1(STC12C5A60S2系列)
sfr CL = 0xE9; //PCA 定时寄存器低位
sfr CH = 0xF9; //PCA 定时寄存器高位
sfr CCAP0L = 0xEA; //PCA模块0的捕获寄存器低位
sfr CCAP0H = 0xFA; //PCA模块0的捕获寄存器高位
sfr CCAP1L = 0xEB; //PCA模块1的捕获寄存器低位
sfr CCAP1H = 0xFB; //PCA模块1的捕获寄存器高位
sfr PCA_PWM0 = 0xF2; //PCA PWM 模式辅助寄存器0
sfr PCA_PWM1 = 0xF3; //PCA PWM 模式辅助寄存器1
sbit CF = 0xDF; //PCA计数溢出标志位
sbit CR = 0xDE; //PCA计数器运行控制位
sbit CCF1 = 0xD9; //PCA模块1中断标志
sbit CCF0 = 0xD8; //PCA模块0中断标志
//* CCAPOH = CCAPOL = 0XC0; //模块0输出占空因数为25%
//* CCAPOH = CCAPOL = 0X80; //模块0输出占空因数为50%
//* CCAPOH = CCAPOL = 0X40; //模块0输出占空因数为75%
void PWM_clock(U8 clock)
{
CMOD |= (clock<<1);
CL = 0x00;
CH = 0x00;
}
void PWM_Initial(void) // 模块0,模块1设置为PWM输出,无中断,初始占空因素为50%
{
U16 a = 0;
TMOD|=0x02; // timer 0 mode 2: 8-Bit reload
TH0=0xff;
TR0=1;
PWM_clock(2); // PCA/PWM时钟源为定时器0的溢出
CCAP0L = 0X80;
CCAP0H = 0X80; //模块0初始输出占空因数为50%
CCAP1L = 0X80;
CCAP1H = 0X80; //模块1初始输出占空因数为50%
PWM_start(2,2);
}
void PWM_start(U8 module,U8 mode)
{
if(module==0)
{
switch(mode)
{
case 0: CCAPM0 = 0X42;break; //模块0设置为8位PWM输出，无中断
case 1: CCAPM0 = 0X53;break; //模块0设置为8位PWM输出，下降沿产生中断
case 2: CCAPM0 = 0X63;break; //模块0设置为8位PWM输出，上升沿产生中断
case 3: CCAPM0 = 0X73;break; //模块0设置为8位PWM输出，跳变沿产生中断
default: break;
}
}
else if(module==1)
{
switch(mode)
{
case 0: CCAPM1 = 0X42;break; //模块1设置为8位PWM输出，无中断
case 1: CCAPM1 = 0X53;break; //模块1设置为8位PWM输出，下降沿产生中断
case 2: CCAPM1 = 0X63;break; //模块1设置为8位PWM输出，上升沿产生中断
case 3: CCAPM1 = 0X73;break; //模块1设置为8位PWM输出，跳变沿产生中断
default: break;
}
}
else if(module==2)
{
switch(mode)
{
case 0: CCAPM0 = CCAPM1 = 0X42;break; //模块0和1设置为8位PWM输出，无中断
case 1: CCAPM0 = CCAPM1 = 0X53;break; //模块0和1设置为8位PWM输出，下降沿产生中断
case 2: CCAPM0 = CCAPM1 = 0X63;break; //模块0和1设置为8位PWM输出，上升沿产生中断
case 3: CCAPM0 = CCAPM1 = 0X73;break; //模块0和1设置为8位PWM输出，跳变沿产生中断
default: break;
}
}
CR=1; //PCA计数器开始计数
}
void PCA_Intrrpt(void) interrupt 7
{
if(CCF0)
CCF0=0;
if(CCF1)
CCF1=0; //软件清零
if(CF)
CF=0; //软件清零
}

复制代码