语音芯片isd4004的驱动程序.doc

/主函数功能描述/*函数名称:isd4004函数功能：语音录入/播放函数入口参数：空出口参数：空异常记录：无*/#include#define uchar unsigned char#define uint unsigned intsbit SS = P30; /片选sbit SCLK = P33; /ISD4003 时钟sbit MOSI = P31; /数据输入sbit MISO = P32; /数据输出sbit ISD_INT= P34; /中断sbit RAC=P35;uchar PR=1; /PR=1 录音 PR=0 放音/函数申明区/void delay4004(unsigned int time);void spi_send(uchar data4004); /isd4004spi发送数据函数void isd_stop(void); /发送停止指令void isd_pu(void); /上电指令void isd_pd(void); /下电指令void isd_play(void); /播放指令void isd_rec(void); /录音指令void isd_setplay(uchar adl,uchar adh); /设置播放模式指令void isd_setrec(unsigned char adl,unsigned char adh); /设置录音模式指令/unsigned char chk_isdovf(void) /检查是否溢出函数/void init12864(uchar c_command,uchar c_time);void print12864(uchar c_12864add,uchar c_12864hdate,uchar c_12864ldate,uchar c_12864time);uchar keyboard(uchar c_break);void delay4004(unsigned int time) /延迟n 微秒while(time-);/*/ISD4004 spi 串行发送子程序，8 位数据/*void spi_send(uchar data4004)unsigned char isx_counter;SS=0; /ss=0,打开spi 通信端SCLK=0;for(isx_counter=0;isx_counter1;/*/发送stop 指令/*void isd_stop(void)delay4004(10);SS=0;spi_send(0x30);SS=1;/ delay4004ms(50);/*/发送上电指令，并延迟50ms/*void isd_pu(void)delay4004(10);SS=0;spi_send(0x20);SS=1;/ delay4004ms(50);/*/发送掉电指令，并延迟50ms/*void isd_pd(void)delay4004(10);SS=0;spi_send(0x10);SS=1;/ delay4004ms(50);/*/发送play 指令/*void isd_play(void)spi_send(0xf0);SS=1;/*/发送rec 指令/*void isd_rec(void)spi_send(0xb0);SS=1;/*/发送setplay 指令/*void isd_setplay(uchar adl,uchar adh)delay4004(1);spi_send(adl); /发送放音起始地址低位delay4004(2);spi_send(adh); /发送放音起始地址高位delay4004(2);spi_send(0xe0); /发送setplay 指令字节SS=1;/*/发送setrec 指令/*void isd_setrec(unsigned char adl,unsigned char adh)delay4004(1);spi_send(adl); /发送放音起始地址低位delay4004(2);spi_send(adh); /发送放音起始地址高位delay4004(2);spi_send(0xa0); /发送setrec 指令字节SS=1;/*/检查芯片是否溢出(读OVF,并返回OVF 值)/*/*unsigned char chk_isdovf(void)SS=0;delay4004(2);SCLK=0;delay4004(2);SCLK=1;SCLK=0;delay4004(2);if (MISO=1) SCLK=0; SS =1; /关闭spi 通信端 isd_stop(); /发送stop 指令 return 1; /OVF 为1，返回1else SCLK=0; SS =1; /关闭spi 通信端 isd_stop(); /发送stop 指令 return 0; /OVF 为0，返回0 */void isd4004(uchar c_select)uint isd4004add=0;SS=MOSI=MISO=SCLK=ISD_INT=RAC=1;init12864(0x01,0);print12864(0x80,o,k,0);if(c_select=A) print12864(0x80,A,!,0); isd_pu(); delay4004(5118); delay4004(5118); isd_pu(); delay4004(5118); delay4004(5118); delay4004(5118); delay4004(5118); isd_setrec(0x00,0x00); delay4004(2); isd_rec(); while(1) if(ISD_INT=0) print12864(0x90,e,d,0);break; if(RAC=0) delay4004(20000); isd4004add+; print12864(0x90,isd4004add/1000+0x30,isd4004add%1000/100+0x30,0); print12864(0x92,isd4004add%100/10+0x30,isd4004add%10+0x30,0); if(keyboard(0)break; isd_stop(); isd_pd();if(c_select=B) isd4004add=0; print12864(0x98,B,!,0); isd_pu(); delay4004(5118); isd_setplay(0x00,0x00); isd_play(); while(1) if(ISD_INT=0) print12864(0x90,e,d,0); if(RAC=0) delay4004(20000); isd4004add+; print12864(0x90,isd4004add/1000+0x30,isd4004add%1000/100+0x30,0); print12864(0x92,isd4004add%100/10+0x30,isd4004add%10+0x30,0); if(keyboard(0)break; if(keyboard(0)print12864(0x82,f,a,0); break; isd_stop(); isd_pd(); if(c_select=C) isd4004add=0; print12864(0x98,B,!,0); isd_pu(); delay4004(5118); isd_setplay(0x05,0x00); isd_play(); while(1) if(ISD_INT=0) print12864(0x90,e,d,0); if(RAC=0) delay4004(2000); isd4004add+; print12864(0x90,isd4004add/1000+0x30,isd4004add%1000/100+0x30,0); print12864(0x92,isd4004add%100/10+0x30,isd4004add%10+0x30,0); if(keyboard(0)break; if(keyboard(0)print12864(0x82,f,a,0); break; isd_stop(); isd_pd();if(c_select=D) print12864(0x80,A,!,0); isd_pu(); delay4004(5118); isd_pu(); delay4004(5118); delay4004(5118); isd_setrec(0x10,0x00); delay4004(2); isd_rec(); while(1) print12864(0x90,e,d,0); if(RAC=