STC15F104W encoder two-way adjustable PWM output source program

//I didn't use the IAPIDLE function. Is there any expert who can give me some advice on the pros and cons?

#include <STC15F104E_PLUS.h>

#include

typedef unsigned char BYTE;

typedef unsigned int WORD;

//#define uint unsigned int

//#define MAIN_Fosc 22118400L //Define the main clock

//#define MAIN_Fosc 12000000L //Define the main clock

#define MAIN_Fosc 11059200L //Define the main clock

//#define MAIN_Fosc 5529600L //Define the main clock

//#define MAIN_Fosc 24000000L //Define the main clock

//#define MAIN_Fosc 40000000L //Define the main clock

//#define ENABLE_IAP 0x80           //if SYSCLK<30MHz

//#define ENABLE_IAP 0x81           //if SYSCLK<24MHz

//#define ENABLE_IAP  0x82          //if SYSCLK<20MHz

#define ENABLE_IAP 0x83           //if SYSCLK<12MHz

//#define ENABLE_IAP 0x84           //if SYSCLK<6MHz

//#define ENABLE_IAP 0x85           //if SYSCLK<3MHz

//#define ENABLE_IAP 0x86           //if SYSCLK<2MHz

//#define ENABLE_IAP 0x87           //if SYSCLK<1MHz

#define CMD_IDLE 0 //Idle mode

#define CMD_READ 1 //IAP byte read command

#define CMD_PROGRAM 2 //IAP byte programming command

#define CMD_ERASE 3 //IAP sector erase command

//Test address

#define IAP_ADDRESS1 0X0000 //Internal EEPROM address

#define IAP_ADDRESS2 0X0200

/* Initial definition */

bit  write = 0;

sbit VD=P3^3; //Red LED 0.50v=10v ;1.00=27v ;3.85=73v;

sbit CD=P3^4; //Green LED

sbit ZS=P3^5; //Indicates LED switching 0 - Red LED adjustment; 1 - Green LED adjustment

sbit BA=P3^0; //Connect encoder pin a to P3.0

sbit BB=P3^1; //Connect encoder's pin b to P3.1

sbit QH=P3^2; //Encoder button connected to P3.2 voltage adjustment or current adjustment 299=5.00V

BYTE v_temp,c_temp,XZ = 0,flag,a0,b0,c0;//  128 109  48 29  //48=0.96V;29=0.58V;

void InitTimer0() interrupt 1 // 0.5 milliseconds @ 11.0592MHz frequency 1000HZ

{

    IE2 = 0x00; //Disable timer 2 interrupt

    AUXR = 0XE4; // turn off timer 2 counting

    TL0 = 0xCD; //Set the initial timing value to 0.5 milliseconds @ 11.0592MHz

    TH0 = 0xD4; //Set the initial timing value to 0.5 milliseconds @ 11.0592MHz

    CEO = 1;

    CD = 1;

    flag = 1;

    AUXR = 0xF4; //Start timer 2 counting

    IE2 = 0x04; // Enable timer 2 interrupt

}

void InitTimer2() interrupt 12 //2 microseconds @ 11.0592MHz to control the light on time

{

    flag++;

    T2L = 0xD4; //Set the initial timing value to 2 microseconds @ 11.0592MHz

    T2H = 0xFF; //Set the initial timing value to 2 microseconds @ 11.0592MHz

    if(v_temp == flag) VD=0;

    if(c_temp == flag) CD=0;

}

/*//Disable IAP

void IapIdle()

{

    IAP_CONTR = 0; //Disable IAP function

    IAP_CMD = 0; // Clear command register

    IAP_TRIG = 0; // Clear the trigger register

    IAP_ADDRH = 0x80; //Set the address to the non-IAP area

    IAP_ADDRL = 0;

}

*/

//Read a byte from the ISP/IAP/EEPROM area

BYTE IapReadByte(WORD addr)

{

    BYTE dat; //data buffer

    IAP_CONTR = ENABLE_IAP;         //使能IAP

    IAP_CMD = CMD_READ; //Set IAP command

    IAP_ADDRL = addr; //Set IAP low address

    IAP_ADDRH = addr >> 8; //Set IAP high address

    IAP_TRIG = 0x5a; //Write trigger command (0x5a)

    IAP_TRIG = 0xa5; //Write trigger command (0xa5)

    _nop_(); //Wait for ISP/IAP/EEPROM operation to complete

    dat = IAP_DATA; //Read ISP/IAP/EEPROM data

    //IapIdle(); //Disable IAP function

    return dat; //return

}

//Write one byte of data to the ISP/IAP/EEPROM area

void IapProgramByte(WORD addr, BYTE dat)

{

    IAP_CONTR = ENABLE_IAP;         //使能IAP

    IAP_CMD = CMD_PROGRAM; //Set IAP command

    IAP_ADDRL = addr; //Set IAP low address

    IAP_ADDRH = addr >> 8; //Set IAP high address

    IAP_DATA = dat; //Write ISP/IAP/EEPROM data

    IAP_TRIG = 0x5a; //Write trigger command (0x5a)

    IAP_TRIG = 0xa5; //Write trigger command (0xa5)

    _nop_(); //Wait for ISP/IAP/EEPROM operation to complete

    //IdleIdle();

}

// sector erase

void IapEraseSector(WORD addr)

{

    IAP_CONTR = ENABLE_IAP;         //使能IAP

    IAP_CMD = CMD_ERASE; //Set IAP command

    IAP_ADDRL = addr; //Set IAP low address

    IAP_ADDRH = addr >> 8; //Set IAP high address

    IAP_TRIG = 0x5a; //Write trigger command (0x5a)

    IAP_TRIG = 0xa5; //Write trigger command (0xa5)

    _nop_(); //Wait for ISP/IAP/EEPROM operation to complete

    //IdleIdle();

}

/*void Timer0Init(void) //100 microseconds @ 24.000MHz 10KHZPWM

{

        AUXR |= 0x80; //Timer clock 1T mode

        TMOD &= 0xF0; //Set timer mode

        TL0 = 0xA0; //Set the initial timing value--100 microseconds @ 24.000MHz

        TH0 = 0xF6; //Set the initial timing value--100 microseconds @ 24.000MHz

        TF0 = 0; // Clear TF0 flag

        TR0 = 1; //Timer 0 starts timing

}

void Timer2Init(void) //0.4 microseconds @ 24.000MHz

{

        AUXR |= 0x04; //Timer clock 1T mode

        T2L = 0xF6; //Set the initial timing value--0.4 microseconds @ 24.000MHz

        T2H = 0xFF; //Set the initial timing value--0.4 microseconds @ 24.000MHz

        AUXR |= 0x10; //Timer 2 starts timing

}

*/

void bianmaqi(void) //Capture EC11 press and rotation information

{

  unsigned char a, b, c;

  a = BA; b = BB; c = QH;

   if (a != a0)     // BA changed

  {

        a0 = a;

    if (b != b0)    // BB changed

     {

      b0 = b;write = 1;

        if ((a == b) && (XZ == 0) && (v_temp < 153)) {v_temp++;}//225 153

    if ((a == b) && (XZ == 1) && (c_temp < 73)) {c_temp++;}//208 65

    if ((a != b) && (XZ == 0) && (v_temp > 23)) {v_temp--;}//85 23   

        if ((a != b) && (XZ == 1) && (c_temp > 5)) {c_temp--;}//29 5

     }

    }

  if (!c && c0)

        {

        if (XZ == 0 )

      {

        XZ = 1;

        ZS = 1;

        }

    else if(XZ == 1)//switch

      {

            XZ = 0;

        ZS = 0;

       }

    }

    c0 = c;

}

void init()

{

    AUXR = 0XE4; //Set timer 0 and 2 to 1T mode

    TMOD = 0x00;

    TL0 = 0xCD; //Set the initial timing value to 0.5 milliseconds @ 11.0592MHz 0xA0; -- 100 microseconds @ 24.000MHz

    TH0 = 0xD4; //Set the initial timing value to 0.5 milliseconds @ 11.0592MHz 0xFF; -- 0.4 microseconds @ 24.000MHz

    T2L = 0xD4; //Set the initial timing value to 2 microseconds @ 11.0592MHz 0xF6;--0.4 microseconds @ 24.000MHz

    T2H = 0xFF; //Set the initial timing value to 2 microseconds @ 11.0592MHz 0xFF;--0.4 microseconds @ 24.000MHz

    EA = 1;

    ET0 = 1;

    TR0 = 1; //Timer 0 starts timing

    P3M1 &= 0xF7;

    P3M0 |= 0x08; //P3.3 (push-pull)

    P3M1 &= 0xEF;

    P3M0 |= 0x10; //P3.4 (push-pull)

    P3M1 &= 0xDF;

    P3M0 |= 0x20; //P3.5 (push-pull)

    CEO = 0;

    CD = 0;

    ZS = 0; // 0 - voltage regulation state; 1 - current regulation state

    a0 = NO;

    b0 = BB;

    c0 = QH;

          v_temp = IapReadByte(1);

        if (v_temp == 0 ){v_temp = 65;}     //128        65

        if (v_temp > 153){v_temp = 65;}     //245  128   

        c_temp = IapReadByte(10);

    if (c_temp == 0 ){c_temp = 29;}     //109           

    if (c_temp > 29 ){c_temp = 29;}     //208  109  

}

void main()

{

heat();

while(1)

   {

   bianmaqi();

   if (write == 1) {

          write = 0;TR0 = 0;

      IapEraseSector(IAP_ADDRESS1); //Erase sector

      if (XZ == 0 )  {

      IapProgramByte(1,v_temp); //Write data

                   }

        else  if (XZ == 1 )  {

      IapProgramByte(10,c_temp); //Write data

                   }

   }

   _nop_();

   TR0 = 1;

   }

}