I2C TI BQ32000读写程序

//BQ32000д¼Ä´æÆ÷

void BQ3200_WriteRegister(uint32_t I2Cx, unsigned char  RegisterAddress, unsigned char  Data)

{

    //·¢Ë͵ØÖ·

    I2C_GenerateSTART(BQ32000_I2C_PORT);

    I2C_Send7bitAddress(BQ32000_I2C_PORT,BQ32000_IIC_ADDRESS,kI2C_Write);

    I2C_WaitAck(BQ32000_I2C_PORT);

    //·¢ËÍÐèҪдÈëµÄ¼Ä´æÆ÷µØÖ·

    I2C_SendData(BQ32000_I2C_PORT,RegisterAddress);

    I2C_WaitAck(BQ32000_I2C_PORT);

    //·¢ËÍÊý¾Ý

    I2C_SendData(BQ32000_I2C_PORT,Data);

    I2C_WaitAck(BQ32000_I2C_PORT);

    //½áÊø

    I2C_GenerateSTOP(BQ32000_I2C_PORT);

    while(I2C_IsBusy(BQ32000_I2C_PORT) == 0);

}





//BQ32000¶Á¼Ä´æÆ÷

uint8_t BQ32000_ReadRegister(uint32_t I2Cx, uint8_t Addr)

{

    uint8_t result;

    //·¢ËÍ´Ó»úµØÖ·

    I2C_GenerateSTART(I2Cx);

    I2C_Send7bitAddress(I2Cx,BQ32000_IIC_ADDRESS,kI2C_Write);

    I2C_WaitAck(I2Cx);

    //ÐèÒª¶ÁÈ¡µÄ¼Ä´æÆ÷

    I2C_SendData(I2Cx, Addr);

    I2C_WaitAck(I2Cx);

    //ÖØпªÊ¼

    I2C_GenerateRESTART(I2Cx);

    //Ö÷»ú¶Á

    I2C_Send7bitAddress(I2Cx,BQ32000_IIC_ADDRESS,kI2C_Read);

    I2C_WaitAck(I2Cx);

    //ÉèÖÃKinetisΪ½ÓÊÕģʽ

    I2C_SetMasterMode(I2Cx,kI2C_Read);



    result = I2C_ReadData(I2Cx);

                I2C_GenerateAck(I2Cx); 

    I2C_WaitAck(I2Cx);

    //·¢ËÍÍ£Ö¹ÐźÅ

    I2C_GenerateSTOP(I2Cx);

    //¶ÁÈ¡Êý¾Ý

    result = I2C_ReadData(I2Cx);

                while(I2C_IsBusy(BQ32000_I2C_PORT) == 0);

    return result;

}



//³õʼ»¯BQ32000

void BQ32000_Init(void)

{        

        I2C_QuickInit(I2C0_SCL_PB00_SDA_PB01, 96000);

}





//ÉèÖóõʼʱ¼ä 

void Settime(char tyear,char tmonth,char tdayofweek,char tdate,char thour, char tminute, char tseconds)

{

                secondunits=(tseconds%10);

    secondtens=(tseconds/10);

    mintens=(tminute/10);

    minunits=(tminute%10);

    hourtens=(thour/10);

    hourunits=(thour%10);

    tdayofweek=tdayofweek;

    datetens=(tdate/10);

    dateunits=(tdate%10);

    monthtens=(tmonth/10);

    monthunits=(tmonth%10);

    yeartens=(tyear/10);

    yearunits=(tyear%10);



    timearrW[0]=secondunits+(secondtens<<4);

                BQ3200_WriteRegister(BQ32000_I2C_PORT,0x00,timearrW[0]);

        

    timearrW[1]=minunits+(mintens<<4);

                BQ3200_WriteRegister(BQ32000_I2C_PORT,0x01,timearrW[1]);

        

    timearrW[2]=hourunits+(hourtens<<4);

                BQ3200_WriteRegister(BQ32000_I2C_PORT,0x02,timearrW[2]);

                

    timearrW[3]=tdayofweek;

                BQ3200_WriteRegister(BQ32000_I2C_PORT,0x03,timearrW[3]);

                

    timearrW[4]=dateunits+(datetens<<4);

                BQ3200_WriteRegister(BQ32000_I2C_PORT,0x04,timearrW[4]);

                

    timearrW[5]=monthunits+(monthtens<<4);

                BQ3200_WriteRegister(BQ32000_I2C_PORT,0x05,timearrW[5]);

                

    timearrW[6]=yearunits+(yeartens<<4);

                BQ3200_WriteRegister(BQ32000_I2C_PORT,0x06,timearrW[6]);

    

}



void Readtime(void)

{

        timearrR[0] = BQ32000_ReadRegister(BQ32000_I2C_PORT,0x00);

        timearrR[1] = BQ32000_ReadRegister(BQ32000_I2C_PORT,0x01);

        timearrR[2] = BQ32000_ReadRegister(BQ32000_I2C_PORT,0x02);

        timearrR[3] = BQ32000_ReadRegister(BQ32000_I2C_PORT,0x03);

        timearrR[4] = BQ32000_ReadRegister(BQ32000_I2C_PORT,0x04);

        timearrR[5] = BQ32000_ReadRegister(BQ32000_I2C_PORT,0x05);

        timearrR[6] = BQ32000_ReadRegister(BQ32000_I2C_PORT,0x06);

}