Esempi in C++ (Cpp) per i2c_start_bit

Esempio n. 1

File: gpio_i2c_drv.c Progetto: Hi-Spy/hidvr-git

int gpio_i2c_readX(int Grp, unsigned char devaddress, unsigned char address)
{
    int rxdata;

    I2C_LOCK(Grp);

    i2c_start_bit(Grp);

    i2c_send_byte(Grp, (unsigned char)(devaddress));
    i2c_receive_ack(Grp);

    i2c_send_byte(Grp, address);
    i2c_receive_ack(Grp);
     
    i2c_start_bit(Grp);

    i2c_send_byte(Grp, (unsigned char)(devaddress) | 1);
    i2c_receive_ack(Grp);

    rxdata = i2c_receive_byte(Grp);

    i2c_stop_bit(Grp);
    
    I2C_UNLOCK(Grp);

    return (unsigned char)rxdata;
}

Esempio n. 2

File: gpio_i2c_drv.c Progetto: Hi-Spy/hidvr-git

int gpio_i2c_readX_KeyPad_Fix(
    int Grp,
    unsigned char Dev,
    void (*Func[2])(void))
{
    int rxdata;

    I2C_LOCK(Grp);

    if(Func[0]) {
        (*Func[0])();
    }

    i2c_start_bit(Grp);

    i2c_send_byte(Grp, (unsigned char)(Dev) | 1);
    i2c_receive_ack(Grp);

    rxdata = i2c_receive_byte(Grp);
    i2c_receive_ack(Grp);

    i2c_stop_bit(Grp);

    if(Func[1]) {
        (*Func[1])();
    }

    I2C_UNLOCK(Grp);

    return (unsigned char)rxdata;
}

Esempio n. 3

File: gpio_i2c_drv.c Progetto: Hi-Spy/hidvr-git

int gpio_i2c_wr_arr(int Grp, unsigned char dev,
    unsigned char rarr[], int rsize,
    unsigned char darr[], int dsize)
{
    int i;

    I2C_LOCK(Grp);

    i2c_start_bit(Grp);

    i2c_send_byte(Grp, dev);
    i2c_receive_ack(Grp);

    for(i = 0; i < rsize; i ++) {
        i2c_send_byte(Grp, rarr[i]);
        i2c_receive_ack(Grp);
    }

    if(dsize > 0) {
	    for(i = 0; i < dsize-1; i ++) {
	        i2c_send_byte(Grp, darr[i]);
	        i2c_receive_ack(Grp);
	    }

	    i2c_send_byte(Grp, darr[i]);
    }

    i2c_stop_bit(Grp);

    I2C_UNLOCK(Grp);
    
    return 0;
}

Esempio n. 4

File: gpio_i2c.c Progetto: MindShow/hi3535

unsigned char gpio_i2c_read(unsigned char devaddress, unsigned char address)
{
    int rxdata;
    
    i2c_start_bit();
    i2c_send_byte((unsigned char)(devaddress));
    i2c_receive_ack();
    i2c_send_byte(address);
    i2c_receive_ack();   
    i2c_start_bit();
    i2c_send_byte((unsigned char)(devaddress) | 1);
    i2c_receive_ack();
    rxdata = i2c_receive_byte();
    //i2c_send_ack();
    i2c_stop_bit();

    return rxdata;
}

Esempio n. 5

File: gpio_i2c.c Progetto: MindShow/hi3535

void gpio_i2c_write(unsigned char devaddress, unsigned char address, unsigned char data)
{
    i2c_start_bit();
    i2c_send_byte((unsigned char)(devaddress));
    i2c_receive_ack();
    i2c_send_byte(address);
    i2c_receive_ack();
    i2c_send_byte(data); 
   // i2c_receive_ack();//add by hyping for tw2815
    i2c_stop_bit();
}

Esempio n. 6

File: gpio_i2c_drv.c Progetto: Hi-Spy/hidvr-git

int gpio_i2c_probeX(int Grp, unsigned char devaddress)
{
    int ret;
    
    I2C_LOCK(Grp);
    
    i2c_start_bit(Grp);
    i2c_send_byte(Grp, (unsigned char)(devaddress));
    ret = i2c_receive_ack(Grp);
    i2c_stop_bit(Grp);

    I2C_UNLOCK(Grp);

    return ret;
}

Esempio n. 7

File: gpio_i2c_drv.c Progetto: Hi-Spy/hidvr-git

int gpio_i2c_write(unsigned char devaddress, unsigned char address, unsigned char data)
{
    int Grp = 0;
    I2C_LOCK(Grp);
    
    i2c_start_bit(Grp);
    i2c_send_byte(Grp, (unsigned char)(devaddress));
    i2c_receive_ack(Grp);
    i2c_send_byte(Grp, address);
    i2c_receive_ack(Grp);
    i2c_send_byte(Grp, data); 
    i2c_stop_bit(Grp);

    I2C_UNLOCK(Grp);

    return 0 ;
}

Esempio n. 8

File: gpio_i2c_drv.c Progetto: Hi-Spy/hidvr-git

int gpio_i2c_writeX_KeyPad_Fix(
    int Grp,
    unsigned char Dev,
    unsigned char rarr[], int rsize,
    unsigned char darr[], int dsize,
    void (*Func[2])(void))
{
    int i;

    I2C_LOCK(Grp);

    if(Func[0]) {
        (*Func[0])();
    }

    i2c_start_bit(Grp);

    i2c_send_byte(Grp, Dev);
    i2c_receive_ack(Grp);

    for(i = 0; i < rsize; i ++) {
        i2c_send_byte(Grp, rarr[i]);
        i2c_receive_ack(Grp);
    }

    for(i = 0; i < dsize; i ++) {
        i2c_send_byte(Grp, darr[i]);
        i2c_receive_ack(Grp);
    }

    i2c_stop_bit(Grp);

    if(Func[1]) {
        (*Func[1])();
    }

    I2C_UNLOCK(Grp);

    return 0;
}