Speech synthesis module based on 51 single chip microcomputer

#include "main.h"

bit bSysHalfSec;

u8 TimeWaitCnt = 0;

u8 code PrevFile[] = {0xAA, 0x05,0x00, 0xAF};/*This array instruction can be directly generated by the host computer and copied over */

u8 code NextFile[] = {0xAA, 0x06, 0x00, 0xB0};

u8 code Path[] = {0xAA, 0x08, 0x10, 0x02, 0x2F, 0xB9, 0xE3, 0xB8, 0xE6, 0x2A, 0x2F, 0xD0, 0xA1, 0xC3, 0xD7, 0x2A, 0x4D, 0x50, 0x33, 0x8B, }; // flash / advertisement*/ Xiaomi*MP3

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

This program is the C51 version of the MP3 serial port module test program. The test chip uses STC12C5A32S2, external crystal oscillator, 11.0592MHZ

Serial port setting: 9600

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

u8 UartData = 0xff;

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

Function name: Timer0Init

Functional description: Timer initialization timing 2 milliseconds @ 11.0592MHz

Input parameters: void

Output parameters: None

return value :

Call functions :

Called function:

Change history:

  1. Date: March 26, 2013

    Author : Blueice

    Modifications: New generation function

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

void Timer0Init ( void )

{

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

    TMOD &= 0xF0; /*Set timer mode */

    TMOD |= 0x01; /*Set timer mode */

    TL0 = 0x9A; /*Set the initial timing value */

    TH0 = 0xA9; /*Set the initial timing value */

    TF0 = 0; /*Clear TF0 flag */

    TR0 = 1; /*Timer 0 starts timing */

    ET0 = 1;

}

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

Function name: SysInit

Functional description: System initialization

Input parameters: void

Output parameters: None

return value :

Call functions :

Called function:

Change history:

  1. Date: March 24, 2013

    Author : Blueice

    Modifications: New generation function

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

void SysInit ( void )

{

    Timer0Init();

    UartInit();

    EA = 1;/*Open the general interrupt */

}

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

Function name: Delay1us

Function description: 1 microsecond delay function

Input parameter: int T

Output parameters: None

return value :

Call functions :

Called function:

Change history:

  1. Date: February 19, 2016

    Author: wskblueice

    Modifications: New generation function

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

void Delay1us ( int T )

{

    T = T - 70;

    do

    {

        ;

    }

    while ( T-- );

}

#define sda ​​P01 /*One-line serial port sending pin */

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

Function name: SendData

Function description: One-line serial port sending function

Input parameter: u16 N

Output parameters: None

return value :

Call functions :

Called function:

Change history:

  1. Date: August 17, 2014

    Author: wskblueice

    Modifications: New generation function

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

void SendData ( u8 addr )

{

    u8 i;

    EA = 0; /* Turn off interrupts when sending to prevent interrupts from affecting timing */

    sda = 1;/*Start pulling */

    Delay1us ( 1000 );

    sda = 0;/*Start boot code*/

    Delay1us ( 2200 );/*The delay here must be at least greater than 2ms, and the delay of this parameter is 310ms */

    for ( i = 0; i < 8; i++ ) /*8 bits of data in total */

    {

        sda = 1;

        if ( addr & 0x01 ) /*3:1 indicates data bit 1, each bit is represented by two pulses */

        {

            Delay1us ( 500 );

            sda = 0;

            Delay1us ( 210 );

        }

        else /*1: 3 represents data bit 0, each bit is represented by two pulses */

        {

            Delay1us ( 210 );

            sda = 0;

            Delay1us ( 500 );

        }

        addr >>= 1;

    }

    sda = 1;

    EA = 1;

}

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

Function name: UartSendData

Function description: Two-wire serial port sends commands

Input parameter: u8 *Buff

Output parameters: None

return value :

Call functions :

Called function:

Change history:

  1. Date: May 1, 2016

    Author: wskblueice

    Modifications: New generation function

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

void UartSendData ( u8 *Buff, u8 Len )

{

    u8 i;

    for ( i = 0 ; i < Len ; i++ )

    {

        UartPutByte ( Buff[i] );

    }

}

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

Function name: main

Functional description: System main loop

Input parameters: void

Output parameters: None

return value :

Call functions :

Called function:

Change history:

  1. Date: February 21, 2013

    Author : Blueice

    Modifications: New generation function

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

void main ( void )

{

    SysInit();

    P0M0 |= BIT ( 0 ) | BIT ( 1 );

    UartSendData ( Path, 20 );

    while ( 1 )

    {

        if ( TimeWaitCnt == 4 ) /*The next song command will be automatically sent every two seconds */

        {

            TimeWaitCnt = 0;

            SendData ( 0x15 );//next file

            //UartSendData ( NextFile,4 );

        }

    }

}

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

Function name: tm0_isr

Function description: Timer interrupt

Input parameters: None

Output parameters: None

return value :

Call functions :

Called function:

Change history:

  1. Date: March 26, 2013

    Author : Blueice

    Modifications: New generation function

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

void Timer0_isr() interrupt 1

{

    static u8 TimeCnt;

    TL0 = 0x9A; /*Set the initial timing value */

    TH0 = 0xA9; /*Set the initial timing value */

    TimeCnt++;

    if ( ( TimeCnt % 5 ) == 0 )

    {

    }

    if ( ( TimeCnt % 250 ) == 0 )

    {

        TimeCnt = 0;

        bSysHalfSec = !bSysHalfSec;

        P00 = !P00;

        TimeWaitCnt++;

    }

}

• Program Screenshots

  

• Circuit Diagram