mucisd1720.c

该程序的平台是：盛群单片机+ISD1720语音芯片+超声波

#include <ht46r24.h>
#pragma vector isr_4 @ 0x4
#pragma vector isr_8 @ 0x8
#pragma vector isr_c @ 0xc

#define SET_BIT(x,y)  (x|=(1<<y))          //x的y位置1
#define CLR_BIT(x,y)  (x&=~(1<<y))        //清x的y位
#define GET_BIT(x,y)  (x&(1<<y))          //读x的y位

#pragma rambank0
unsigned char key_value;
unsigned char   SR0L @ 0x40;
unsigned char   SR0H @ 0x41;
unsigned char    SR1 @ 0x42;
unsigned char    SR2 @ 0x43;        //APC_H
unsigned char   tmp @ 0x44;
unsigned char   status @ 0x45;
#pragma norambank


void isr_4(){} // external ISR
void isr_8(){} // timer/event 0
void isr_c(){} // timer/event 1
//command define
#define _pac3 _13_3
#define _pac5 _13_5
#define PU                 0x01
#define STOP               0x02
#define RESET              0x03
#define CLR_INT            0x04
#define RD_STATUS          0x05
#define RD_PLAY_PTR        0x06
#define PD                 0x07
#define RD_REC_PTR         0x08
#define DEVID              0x09
#define PLAY               0x40
#define REC                0x41
#define ERASE              0x42
#define G_ERASE            0x43
#define RD_APC             0x44
#define WR_APC1            0x45
#define WR_APC2            0x65
#define WR_NVCFG           0x46
#define LD_NVCFG           0x47
#define FWD                0x48
#define CHK_MEM            0x49
#define EXTCLK             0x4a
#define SET_PLAY           0x80
#define SET_REC            0x81
#define SET_ERASE          0x82

#define PU_FLAG                 1
#define EOM_FLAG                2
#define INT_FLAG                4
#define RDY_FLAG                0x10
#define ERASE_FLAG              0x20
#define PLAY_FLAG               0x40
#define REC_FLAG                0x80

void _delay10ms(unsigned char x){
	  unsigned char i;
	  for(i=0;i<x;i++)
	  { _delay(10000);}
	}

//MISO--→MCU
//MOSI←--MC
unsigned char isd1720_spio(unsigned char BUF_ISD)
{
 unsigned char i,j;
 _pb2=1;          // SCLK=1;
 _pb3=0;          //ss
 for(i=8;i>0;i--)
 {
  j=BUF_ISD;
  _pb2=0;        //SCLK
  _delay(4);
  if(!(GET_BIT(j,0))) 
     _pb1=0;       //写ISD1720
  else 
     _pb1=1;  
  BUF_ISD=BUF_ISD>>1;               //右移 ,或者调用"intrins.h"里的_cror_(BUF_ISD,1)
  _pb2=1;
    if(!_pb0) 
     CLR_BIT(BUF_ISD,7);     //读ISD1720,如果MISO为0,则BUF_ISD第7位为0
  else 
    SET_BIT(BUF_ISD,7); 
 }
 _pb1=0;
 return BUF_ISD;
}

void  isd1720_cmd(unsigned char cmd, unsigned char dat, unsigned char start, unsigned char end, unsigned char count)
{   
    _emi = 0; //禁止所有中断
    _pb3 = 1;
    _pb2 = 1;
    _pb1 = 0;
    _pb3 = 0;
    _delay(20);
    SR0L = isd1720_spio(cmd);
    SR0H = isd1720_spio(dat);
    if (count > 2)
    {
        SR1 = isd1720_spio(start);
    }
    if (count > 3)
    {
        SR2 = isd1720_spio(0x0);
    }
    if (count > 4)
    {
        SR0H = isd1720_spio(end);
    }
    if (count > 5)
    {
        SR0H = isd1720_spio(0x0);
    }
    if (count > 6)
    {
        SR0H = isd1720_spio(0x0);
    }
    _delay(20);
    _pb3 = 1;
    _emi = 1;
    _delay(1000);
}

void    isd1720_read_sr(void)
{
    isd1720_cmd(RD_STATUS|0x10, 0x0, 0x0, 0x0, 3);
}

void    isd1720_read_play(void)
{
    isd1720_cmd(RD_PLAY_PTR|0x10, 0x0, 0x0, 0x0, 4);
}

void    isd1720_read_rec(void)
{
    isd1720_cmd(RD_REC_PTR|0x10, 0x0, 0x0, 0x0, 4);
}

void    isd1720_set_erase(unsigned char addr)
{
    isd1720_cmd(SET_ERASE|0x10, 0x0, addr, addr+0x0f, 7);
}

void isd1720_g_erase(void)
{
	isd1720_cmd(G_ERASE|0x10,0x0,0x0,0x0,2);
	}

void    isd1720_reset(void)
{
    isd1720_cmd(RESET, 0x0, 0x0, 0x0, 2);
}

 void    isd1720_powerup(void)
{
    isd1720_cmd(PU, 0x0, 0x0, 0x0, 2);
}

void    isd1720_stop_cmd(void)
{
    isd1720_cmd(STOP, 0x0, 0x0, 0x0, 2);
}

void    isd1720_powerdown(void)
{
    isd1720_cmd(PD|0x10, 0x0, 0x0, 0x0, 2);
}

void    isd1720_clear_int(void)
{
    isd1720_cmd(CLR_INT, 0x0, 0x0, 0x0, 2);
}

void    isd1720_write_apc2(void)
{
    isd1720_cmd(WR_APC2, 0x40, 0x0C, 0x0, 3);
}

void    isd1720_read_apc(void)
{
    isd1720_cmd(RD_APC, 0x0, 0x0, 0x0, 4);
}

void    isd1720_chk_mem(void)
{
    isd1720_cmd(CHK_MEM, 0x0, 0x0, 0x0,2);
}



unsigned char   isd1720_status_judge(unsigned char flag)
{
    unsigned char time = 0;
     status = 0; 
    SR1 = 0;
    SR0L = 0;
    while ((status & flag) == 0)
    {
        time++;
        if (time > 8)
        {
            return 1;                                //>2s, time-out
        }
        isd1720_read_sr();
        status = (SR1 << 4) + ((SR0L >> 2) & 0x0f);
    }
    return 0;
}

void    isd1720_set_rec(unsigned char addr)
{ 
   isd1720_cmd(SET_REC|0x10, 0x0, addr, addr+0x07, 7);
}


unsigned char   isd1720_record(unsigned char addr)
{
    if(addr>0x8f){
    	return 1;
    	}

    if (isd1720_status_judge(PU_FLAG) != 0)
    {
        return 2;                                        //time-out
    }
    isd1720_clear_int();
    isd1720_write_apc2();
    if (isd1720_status_judge(RDY_FLAG) != 0)
    {
        return 3;                                        //time-out
    }
    isd1720_set_erase(addr);
    if(SR0L&0x01!=0){
    	return 4;
    	}
    _delay(20000); //延时20ms
     isd1720_clear_int();
    if (isd1720_status_judge(RDY_FLAG) != 0)
    {
        return 5;                                        //time-out
    }
    isd1720_set_rec(addr);
    _delay10ms(200);    //延时2s
    if (isd1720_status_judge(INT_FLAG) != 0)
    {
        return 6;                                        //time-out
    }
    while ((SR0L&0x08== 0) && (SR1&0x08 ==0x08))
    {
        isd1720_read_sr();                            //recing...
    }
    isd1720_clear_int();
    isd1720_powerdown();
    _delay(50000);
    return 6;
}

void    isd1720_set_play(unsigned char addr)
{
    isd1720_cmd(SET_PLAY|0x10, 0x0, addr, addr+0x07, 7);
}

unsigned char    isd1720_play(unsigned char addr)
{
    if (addr > 0x9f)
    {
        return 5;
    }
    isd1720_powerup();
    _delay(60000);
    _delay(60000);

    if (isd1720_status_judge(PU_FLAG)!= 0)
    {
        return 1;                                        //time-out
    }
    isd1720_clear_int();
    if (isd1720_status_judge(RDY_FLAG) != 0)
    {
        return 2;                                        //time-out
    }
    isd1720_set_play(addr);
    _delay10ms(120);
    if (isd1720_status_judge(INT_FLAG) != 0)
    {
        return 3;                                        //time-out
    }
    while ((SR0L&0x08 == 0) && (SR1&0x04 ==0x04))
    {
        isd1720_read_sr();                            //playing...
    }
    isd1720_clear_int();
    isd1720_powerdown();
    _delay(60000);  
    return 4;
}


void safeguard_init(){
	_intc0= 0;
	_tmr0c = 0;
	_tmr0h= 0;
	_tmr0l = 0;
	_tmr1c = 0;
	_tmr1h = 0;
	_tmr1l = 0;
	_pac = 0xff;
	_pbc = 0xff;
	_pcc = 0xff;
	_pdc = 0xff;
}

void wait_key_press(){
	unsigned char key;
	key=0;
	while(!(key&(unsigned char)0x03)){
		key=~_pa;
		}
		if(key&(unsigned char)0x01) key_value=0;
         if(key&(unsigned char)0x02) key_value=1;
	}
void wait_key_release(){
	unsigned char key;
	key=1;
	while(key&(unsigned char)0x03){
		key=~_pa;}
	}


void csb_transmitt(){
	_pac3=1;
	_pa3=0;
	_pac5=0;
	_pa5=0;
   	_intc0=0x0d; //ET0I定时器0、ET0I定时器1 和 EMI总中断允许
	  _tmr0c=0x80; //定时模式
	  _tmr1c=0x80; //定时模式
	  _tmr0l=0xcb; //计算100次溢出
	  _tmr0h=0xff;
	  _tmr1h = 0;
	  _tmr1l = 0;
	  _pa3=1;
	  _t0on=1;  //定时器0开启
	  _t1on=1;   //定时器1开启
}
	
void main(){
	safeguard_init();
	    _pbc=0xf1;    //设置B口1、2、3口为输出其他为输入
	_pb=0xfe;
	_pac=0xf7;    //设置PA4、3口为输出，接发光二级管
	_pa=0xf7;

    while(1){
    	wait_key_press();
    	isd1720_play(0x18);
    	isd1720_play(0x10);
    	wait_key_release();
    	}
}