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標(biāo)題: STC8A8K64D4單片機(jī)增強(qiáng)型PWM輸出兩路互補(bǔ)SPWM程序 [打印本頁]

作者: qq35793374 時(shí)間: 2023-3-5 14:27
標(biāo)題: STC8A8K64D4單片機(jī)增強(qiáng)型PWM輸出兩路互補(bǔ)SPWM程序
/*************  功能說明 **************
使用PWM0_3,PWM1_3產(chǎn)生互補(bǔ)的SPWM.

主時(shí)鐘選擇24MHZ, PWM時(shí)鐘選擇1T, PWM周期2400, 死區(qū)12個(gè)時(shí)鐘(0.5us).正弦波表用200點(diǎn).

輸出正弦波頻率 = 24000000 / 2400 / 200 = 50 HZ.

本程序從P6.0(PWM0_3)輸出正相脈沖, 從P6.1(PWM1_3)輸出反相脈沖(互補(bǔ)).

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

#include "reg51.h"    //包含此頭文件后，里面聲明的寄存器不需要再手動輸入，避免重復(fù)定義
#include "intrins.h"
#include "T_SineTable.h"

#define    MAIN_Fosc    24000000L //定義主時(shí)鐘

#define             PWM_DeadZone       12       /* 死區(qū)時(shí)鐘數(shù), 6 ~ 24之間  */

typedef    unsigned char u8;
typedef    unsigned int u16;
typedef    unsigned long u32;

//手動輸入聲明"reg51.h"頭文件里面沒有定義的寄存器
sfr TH2  = 0xD6;
sfr TL2  = 0xD7;
sfr IE2  = 0xAF;
sfr INT_CLKO = 0x8F;
sfr AUXR = 0x8E;
sfr P_SW1 = 0xA2;
sfr P_SW2 = 0xBA;

sfr PWMSET = 0xF1;
sfr PWMCFG = 0xF6;

sfr P4 = 0xC0;
sfr P5 = 0xC8;
sfr P6 = 0xE8;
sfr P7 = 0xF8;
sfr P1M1 = 0x91; //PxM1.n,PxM0.n    =00--->Standard, 01--->push-pull
sfr P1M0 = 0x92; //                =10--->pure input,  11--->open drain
sfr P0M1 = 0x93;
sfr P0M0 = 0x94;
sfr P2M1 = 0x95;
sfr P2M0 = 0x96;
sfr P3M1 = 0xB1;
sfr P3M0 = 0xB2;
sfr P4M1 = 0xB3;
sfr P4M0 = 0xB4;
sfr P5M1 = 0xC9;
sfr P5M0 = 0xCA;
sfr P6M1 = 0xCB;
sfr P6M0 = 0xCC;
sfr P7M1 = 0xE1;
sfr P7M0 = 0xE2;

sbit P00 = P0^0;
sbit P01 = P0^1;
sbit P02 = P0^2;
sbit P03 = P0^3;
sbit P04 = P0^4;
sbit P05 = P0^5;
sbit P06 = P0^6;
sbit P07 = P0^7;
sbit P10 = P1^0;
sbit P11 = P1^1;
sbit P12 = P1^2;
sbit P13 = P1^3;
sbit P14 = P1^4;
sbit P15 = P1^5;
sbit P16 = P1^6;
sbit P17 = P1^7;
sbit P20 = P2^0;
sbit P21 = P2^1;
sbit P22 = P2^2;
sbit P23 = P2^3;
sbit P24 = P2^4;
sbit P25 = P2^5;
sbit P26 = P2^6;
sbit P27 = P2^7;
sbit P30 = P3^0;
sbit P31 = P3^1;
sbit P32 = P3^2;
sbit P33 = P3^3;
sbit P34 = P3^4;
sbit P35 = P3^5;
sbit P36 = P3^6;
sbit P37 = P3^7;
sbit P40 = P4^0;
sbit P41 = P4^1;
sbit P42 = P4^2;
sbit P43 = P4^3;
sbit P44 = P4^4;
sbit P45 = P4^5;
sbit P46 = P4^6;
sbit P47 = P4^7;
sbit P50 = P5^0;
sbit P51 = P5^1;
sbit P52 = P5^2;
sbit P53 = P5^3;
sbit P54 = P5^4;
sbit P55 = P5^5;
sbit P56 = P5^6;
sbit P57 = P5^7;

/****************************** XFR定義* ***********************************/

#define    PWMC                   (*(unsigned int  volatile xdata *)0xff00)
#define    PWMCH                (*(unsigned char volatile xdata *)0xff00)
#define    PWMCL                (*(unsigned char volatile xdata *)0xff01)
#define    PWMCKS                (*(unsigned char volatile xdata *)0xff02)
#define    PWM_SELT2             0x10
#define    PWMTADC                (*(unsigned int  volatile xdata *)0xff03)
#define    PWMTADCH             (*(unsigned char volatile xdata *)0xff03)
#define    PWMTADCL             (*(unsigned char volatile xdata *)0xff04)
#define    PWMIF                (*(unsigned char volatile xdata *)0xff05)
#define    PWM_C7IF             0x80
#define    PWM_C6IF             0x40
#define    PWM_C5IF             0x20
#define    PWM_C4IF             0x10
#define    PWM_C3IF             0x08
#define    PWM_C2IF             0x04
#define    PWM_C1IF             0x02
#define    PWM_C0IF             0x01
#define    PWMFDCR                (*(unsigned char volatile xdata *)0xff06)
#define    PWMFD_INVCMP          0x80
#define    PWMFD_INVIO          0x40
#define    PWMFD_ENFD             0x20
#define    PWMFD_FLTFLIO          0x10
#define    PWMFD_EFDI             0x08
#define    PWMFD_FDCMP          0x04
#define    PWMFD_FDIO             0x02
#define    PWMFD_FDIF             0x01
#define    PWMDELSEL             (*(unsigned char volatile xdata *)0xff07)
#define    PWM_CH03FULL          0x00
#define    PWM_CH03HALF          0x01
#define    PWM_CH03NONE          0x02
#define    PWM_CH47FULL          0x00
#define    PWM_CH47HALF          0x04
#define    PWM_CH47NONE          0x08
#define    PWM0T1                (*(unsigned int  volatile xdata *)0xff10)
#define    PWM0T1H                (*(unsigned char volatile xdata *)0xff10)
#define    PWM0T1L                (*(unsigned char volatile xdata *)0xff11)
#define    PWM0T2                (*(unsigned int  volatile xdata *)0xff12)
#define    PWM0T2H                (*(unsigned char volatile xdata *)0xff12)
#define    PWM0T2L                (*(unsigned char volatile xdata *)0xff13)
#define    PWM0CR                (*(unsigned char volatile xdata *)0xff14)
#define    PWM_ENO                0x80
#define    PWM_INI0             0x00
#define    PWM_INI1             0x40
#define    PWM_ENI                0x04
#define    PWM_ENT2I             0x02
#define    PWM_ENT1I             0x01
#define    PWM0HLD                (*(unsigned char volatile xdata *)0xff15)
#define    PWM_HLDH             0x02
#define    PWM_HLDL             0x01
#define    PWM1T1                (*(unsigned int  volatile xdata *)0xff18)
#define    PWM1T1H                (*(unsigned char volatile xdata *)0xff18)
#define    PWM1T1L                (*(unsigned char volatile xdata *)0xff19)
#define    PWM1T2                (*(unsigned int  volatile xdata *)0xff1a)
#define    PWM1T2H                (*(unsigned char volatile xdata *)0xff1a)
#define    PWM1T2L                (*(unsigned char volatile xdata *)0xff1b)
#define    PWM1CR                (*(unsigned char volatile xdata *)0xff1c)
#define    PWM1HLD                (*(unsigned char volatile xdata *)0xff1d)
#define    PWM2T1                (*(unsigned int  volatile xdata *)0xff20)
#define    PWM2T1H                (*(unsigned char volatile xdata *)0xff20)
#define    PWM2T1L                (*(unsigned char volatile xdata *)0xff21)
#define    PWM2T2                (*(unsigned int  volatile xdata *)0xff22)
#define    PWM2T2H                (*(unsigned char volatile xdata *)0xff22)
#define    PWM2T2L                (*(unsigned char volatile xdata *)0xff23)
#define    PWM2CR                (*(unsigned char volatile xdata *)0xff24)
#define    PWM2HLD                (*(unsigned char volatile xdata *)0xff25)
#define    PWM3T1                (*(unsigned int  volatile xdata *)0xff28)
#define    PWM3T1H                (*(unsigned char volatile xdata *)0xff28)
#define    PWM3T1L                (*(unsigned char volatile xdata *)0xff29)
#define    PWM3T2                (*(unsigned int  volatile xdata *)0xff2a)
#define    PWM3T2H                (*(unsigned char volatile xdata *)0xff2a)
#define    PWM3T2L                (*(unsigned char volatile xdata *)0xff2b)
#define    PWM3CR                (*(unsigned char volatile xdata *)0xff2c)
#define    PWM3HLD                (*(unsigned char volatile xdata *)0xff2d)
#define    PWM4T1                (*(unsigned int  volatile xdata *)0xff30)
#define    PWM4T1H                (*(unsigned char volatile xdata *)0xff30)
#define    PWM4T1L                (*(unsigned char volatile xdata *)0xff31)
#define    PWM4T2                (*(unsigned int  volatile xdata *)0xff32)
#define    PWM4T2H                (*(unsigned char volatile xdata *)0xff32)
#define    PWM4T2L                (*(unsigned char volatile xdata *)0xff33)
#define    PWM4CR                (*(unsigned char volatile xdata *)0xff34)
#define    PWM4HLD                (*(unsigned char volatile xdata *)0xff35)
#define    PWM5T1                (*(unsigned int  volatile xdata *)0xff38)
#define    PWM5T1H                (*(unsigned char volatile xdata *)0xff38)
#define    PWM5T1L                (*(unsigned char volatile xdata *)0xff39)
#define    PWM5T2                (*(unsigned int  volatile xdata *)0xff3a)
#define    PWM5T2H                (*(unsigned char volatile xdata *)0xff3a)
#define    PWM5T2L                (*(unsigned char volatile xdata *)0xff3b)
#define    PWM5CR                (*(unsigned char volatile xdata *)0xff3c)
#define    PWM5HLD                (*(unsigned char volatile xdata *)0xff3d)
#define    PWM6T1                (*(unsigned int  volatile xdata *)0xff40)
#define    PWM6T1H                (*(unsigned char volatile xdata *)0xff40)
#define    PWM6T1L                (*(unsigned char volatile xdata *)0xff41)
#define    PWM6T2                (*(unsigned int  volatile xdata *)0xff42)
#define    PWM6T2H                (*(unsigned char volatile xdata *)0xff42)
#define    PWM6T2L                (*(unsigned char volatile xdata *)0xff43)
#define    PWM6CR                (*(unsigned char volatile xdata *)0xff44)
#define    PWM6HLD                (*(unsigned char volatile xdata *)0xff45)
#define    PWM7T1                (*(unsigned int  volatile xdata *)0xff48)
#define    PWM7T1H                (*(unsigned char volatile xdata *)0xff48)
#define    PWM7T1L                (*(unsigned char volatile xdata *)0xff49)
#define    PWM7T2                (*(unsigned int  volatile xdata *)0xff4a)
#define    PWM7T2H                (*(unsigned char volatile xdata *)0xff4a)
#define    PWM7T2L                (*(unsigned char volatile xdata *)0xff4b)
#define    PWM7CR                (*(unsigned char volatile xdata *)0xff4c)
#define    PWM7HLD                (*(unsigned char volatile xdata *)0xff4d)

/*************  本地變量聲明 **************/

u16 PWM1_Duty;
u8       PWM_Index;       //SPWM查表索引

/*************  本地函數(shù)聲明 **************/

void PWM_config(void);

/******************** 主函數(shù) **************************/
void main(void)
{
P0M1 = 0x00; P0M0 = 0x00; //設(shè)置為準(zhǔn)雙向口
P1M1 = 0x00; P1M0 = 0x00; //設(shè)置為準(zhǔn)雙向口
P2M1 = 0x00; P2M0 = 0x00; //設(shè)置為準(zhǔn)雙向口
P3M1 = 0x00; P3M0 = 0x00; //設(shè)置為準(zhǔn)雙向口
P4M1 = 0x00; P4M0 = 0x00; //設(shè)置為準(zhǔn)雙向口
P5M1 = 0x30; P5M0 = 0x00; //設(shè)置為準(zhǔn)雙向口, 設(shè)置P5.4,P5.5(蜂鳴器)高阻輸入
P6M1 = 0x00; P6M0 = 0x03; //設(shè)置為準(zhǔn)雙向口, 設(shè)置P6.0,P6.1推挽輸出
P7M1 = 0x00; P7M0 = 0x00; //設(shè)置為準(zhǔn)雙向口

PWM1_Duty = 1220;

PWM_config();

EA = 1;    //打開總中斷

while (1)
{
}
}

//========================================================================
// 函數(shù): void PWM_config(void)
// 描述: PWM初始化函數(shù)。
// 參數(shù): 無.
// 返回: 無.
// 版本: V1.0, 2020-6-10
//========================================================================
void PWM_config(void)
{
PWMSET = 0x01;             //使能PWM模塊
P_SW2 |= 0x80;
PWMCKS = 0x00;             //PWM時(shí)鐘為系統(tǒng)時(shí)鐘
PWMC = 2400;                      //PWM周期
PWM0T1 = 65 - PWM_DeadZone;                      //低電平輸出位置
PWM0T2 = 1220 + PWM_DeadZone;             //高電平輸出位置
PWM0CR = 0x90;             //使能PWM輸出, 初始電平為0, 選擇P6.0

PWM1T1 = 1220;       //低電平輸出位置
PWM1T2 = 65;       //高電平輸出位置
PWM1CR = 0xD0;             //使能PWM輸出, 初始電平為1, 選擇P6.1

P_SW2 &= 0x7f;
PWMCFG = 0x05;       //啟動PWM模塊, 允許PWM計(jì)數(shù)器歸零中斷
}

/********************* PWM中斷函數(shù)************************/

void PWM_int (void) interrupt 22
{
      char store;
      store = P_SW2;
      P_SW2 |= 0x80;

      if(PWMCFG & 0x08)             //PWM計(jì)數(shù)器中斷
      {
            PWMCFG &= ~0x08;             //清PWM計(jì)數(shù)器中斷標(biāo)志

            PWM0T2 = T_SinTable[PWM_Index] + PWM_DeadZone;
            PWM1T1 = T_SinTable[PWM_Index];

            if(++PWM_Index >= 200)       PWM_Index = 0;

      }
/*
      if(PWMIF & C0IF)       //PWM0中斷標(biāo)志
      {
            PWMIF &= ~C0IF;       //清除中斷標(biāo)志
      }

      if(PWMIF & C1IF)       //PWM1中斷標(biāo)志
      {
            PWMIF &= ~C1IF;       //清除中斷標(biāo)志
      }

      if(PWMIF & C2IF)       //PWM2中斷標(biāo)志
      {
            PWMIF &= ~C2IF;       //清除中斷標(biāo)志
      }

      if(PWMIF & C3IF)       //PWM3中斷標(biāo)志
      {
            PWMIF &= ~C3IF;       //清除中斷標(biāo)志
      }

      if(PWMIF & C4IF)       //PWM4中斷標(biāo)志
      {
            PWMIF &= ~C4IF;       //清除中斷標(biāo)志
      }

      if(PWMIF & C5IF)       //PWM5中斷標(biāo)志
      {
            PWMIF &= ~C5IF;       //清除中斷標(biāo)志
      }

      if(PWMIF & C6IF)       //PWM6中斷標(biāo)志
      {
            PWMIF &= ~C6IF;       //清除中斷標(biāo)志
      }

      if(PWMIF & C7IF)       //PWM7中斷標(biāo)志
      {
            PWMIF &= ~C7IF;       //清除中斷標(biāo)志
      }
*/
      P_SW2 = store;
}
/*---------------------------------------------------------------------*/
/*本程序使用了STC的資料及程序，學(xué)習(xí)使用，感謝支持 */
/*---------------------------------------------------------------------*/

51hei.png (22.8 KB, 下載次數(shù): 115)

51hei.png (3.23 KB, 下載次數(shù): 105)

增強(qiáng)型PWM輸出兩路互補(bǔ)SPWM.zip

79.86 KB, 下載次數(shù): 46, 下載積分: 黑幣 -5

SPWM程序

作者: wanghuailin 時(shí)間: 2023-6-15 19:11
有空可以下載下來看一下，謝謝分享

作者: zying 時(shí)間: 2023-6-18 13:45
好東西哦！收下了！謝謝分享�。。。。。。。。。。。。。。。。�！

作者: hww22 時(shí)間: 2023-8-22 10:05
void PWM_config(void)
{
PWMSET = 0x01;             //使能PWM模塊
P_SW2 |= 0x80;
PWMCKS = 0x00;             //PWM時(shí)鐘為系統(tǒng)時(shí)鐘
PWMC = 2400;                      //PWM周期
--------------------------------------------------------------------
如果要改變1下頻率，把2400 改3000 就是 40HZ,    但是如何在代碼運(yùn)行后30秒 40HZ改為  50hz, 應(yīng)該如果改？PWMC = 3000    // 40HZ    PWMC = 2400    //50HZ

作者: joyb 時(shí)間: 2023-8-22 14:38

STC8A8K64D4.7z (2.63 KB, 下載次數(shù): 9)
官方有頭文件
sfr T2H = 0xd6;
sfr T2L = 0xd7;

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