公交车自动报站系统设计(4)

void ISD4004_Play(uint addr) {

Sendcmd(POWERUP,0); DelayMs(25); SendCmd(SETPLAY,addr); SendCmd(PLAY,0); }

uint ISD4004_Stop(void) {

uint tmp;

tmp= SendCmd(STOP,0); return tmp; }

void ISD4004_Record(uint addr) {

SendCmd(POWERUP,0); DelayMs(25); SendCmd(POWERUP,0); DelayMs(50); SendCmd(SETREC,addr); SendCmd(REC,0); }

uint ISD4004_Rint(void)

{

return SendCmd(RINT,0); }

*******************************************************************************

//I2CLib.h

#ifndef TWI_H

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#define TWI_H

#include #include

#define ERROR

#define START 0x08 #define MT_SLA_ACK 0x18 #define MT_DATA_ACK 0x28 #define MR_SLA_ACK 0x40

#define MR_DATA_ACK 0x50 #define MR_DATA_NACK 0x58

void TwiWrite(char sladdr,char addr,char* dat,int len); void TwiRead(char sladdr,char addr,char* dat,int len); #endif/*TWI_H*/ //I2CLib.c

#include \

static void Delay(int num) {

int i;

for(i=0;i

void TwiWrite(char sladdr,char addr,char* dat,int len); {

int i;

for(i=0;i

if((TWSR&0xF8)!=START)ERROR(START);

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TWDR=(sladdr<<1)&0xfe; TWCR=(1<

if((TWSR&0xF8)!=MT_SLA_ACK) ERROR(MT_SLA_ACK);

TWDR=addr+1; TWCR=(1<

if((TWSR&0xF8)!=MT_DATA_ACK) ERROR(MT_DATA_ACK);

TWDR=*(dat+i); TWCR=(1<

if((TWSR&0xF8)!=MT_DATA_ACK) ERROR(MT_DATA_ACK);

TWCR=(1<

Delay(3000); } }

void TwiRead(char sladdr,char addr,char* dat,int len); {

int i;

for(i=0;i

if((TWSR&0xF8)!=START)ERROR(START);

TWDR=(sladdr<<1)&0xfe; TWCR=(1<

if((TWSR&0xF8)!=MT_SLA_ACK) ERROR(MT_SLA_ACK);

TWDR=addr+1; TWCR=(1<

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while(!(TWCR&(1<

if((TWSR&0xF8)!=MT_DATA_ACK) ERROR(MT_DATA_ACK);

TWCR=(1<

if((TWSR&0xF8)!=START)ERROR(START);

TWDR=(sladdr<<1)|0x01; TWCR=(1<

if((TWSR&0xF8)!=MR_SLA_ACK)ERROR(MR_SLA_ACK);

TWCR=(1<

if((TWSR&0xF8)!=MR_DATA_NACK)ERROR(MR_DATA_NACK); *(dat+i)=TWDR;

TWCR=(1<

*******************************************************************************

//include.h

#ifndef INCLUDE_H #define INCLUDE_H

#include #include

#include\ #include \

#define HEAD 0 #define TAIL 1 #define RECORD_NUM 30

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#define KEY_PLAY_LEVEL (PIND&0x04) #define KEY_STOP_LEVEL (PINB&0x40) #define KEY_RECORD_LEVEL (PINB&0x80) #define INT_LEVEL (PINC&0x01)

typedef enum{ KEY_NONE, KEY_PLAY, KEY_STOP, KEY_RECORD }KeyCode;

typedef enum{ PLAY_NONE, PLAY_HEAD, PLAY_ZHAN, PLAY_TALL, PLAY_OVER }PlayStatus;

typedef enum{ RECORD_NONE, RECORD_ONGOING, RECORD_OVF }RecordStatus;

typedef enum{ FALSE, TRUE }Bool;

void TxData(char data); void DelaayMs(uint n); uchar MEGA48SPISendByte(uchar byte); viod MEGA48SSLevel(Level level);

#endif/*INCLUDE_H*/ //include.c

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