C++ (Cpp) I2C_DATA_LO示例

示例#1

文件： i2c.c 项目： lieb005/My_Stuff

unsigned char I2C_ReadBit_Wait()
{
  SDAINPUT;
  I2C_CLOCK_HI();
  
  unsigned int i = 0;
  unsigned char c = READSDA;

  while(c>0 && i<=35)
  {
    I2CDELAY(1);
    c = READSDA;
    i++;
  }

  if(c)
    I2C_DATA_HI();
  else
    I2C_DATA_LO();

  SDAOUTPUT;
  I2CDELAY(1);
  I2C_CLOCK_LO();
  I2CDELAY(1);

  return c?0:1;	// return true on ACK (0)
}

示例#2

文件： i2cmaster_bitbang.c 项目： doorleyr/blinkm-projects

void i2c_writebit( unsigned char c )
{
    if ( c > 0 ) {
        I2C_DATA_HI();
    } else {
        I2C_DATA_LO();
    }

    I2C_CLOCK_HI();
    _delay_us(i2cbitdelay);

    I2C_CLOCK_LO();
    _delay_us(i2cbitdelay);

    if ( c > 0 ) {
        I2C_DATA_LO();
    }
    _delay_us(i2cbitdelay);
}

示例#3

文件： i2c.c 项目： lieb005/My_Stuff

//! Send a START Condition
void I2C_Start()
{
  I2C_Take();	// XXX Should probably check to see if someone else is using the bus before we do this
  I2CDELAY(3);
  
  I2C_DATA_LO();
  I2CDELAY(3);
  
  I2C_CLOCK_LO();
  I2CDELAY(1);
}

示例#4

文件： i2c.c 项目： lieb005/My_Stuff

//! Send a STOP Condition
void I2C_Stop()
{
  I2C_DATA_LO();
  I2CDELAY(3);

  I2C_CLOCK_HI();
  I2CDELAY(3);

  I2C_DATA_HI();
  I2CDELAY(1);
  I2C_Release();
}

示例#5

文件： i2cbang.c 项目： headrotor/attiny-thermostat

void I2C_WriteBit( unsigned char c )
{
  if ( c > 0 ){
    I2C_DATA_HI();
  }
  else {
    I2C_DATA_LO();
  }

  I2C_CLOCK_HI();
  _delay_ms(1);

  I2C_CLOCK_LO();
  _delay_ms(1);

  if ( c > 0 ) 
    I2C_DATA_LO();

  _delay_ms(1);

}

示例#6

文件： i2cbang.c 项目： headrotor/attiny-thermostat

// Send a START Condition
//
void I2C_Start()
{
  // set both to high at the same time
  I2C_DDR &= ~( ( 1 << I2C_DAT ) | ( 1 << I2C_CLK ) );
  _delay_ms(1);

  I2C_DATA_LO();
  _delay_ms(1);

  I2C_CLOCK_LO();
  _delay_ms(1);
}

示例#7

文件： bitbang_i2c.c 项目： kehribar/xmegaE5

void I2C_Stop()
{
	I2C_DATA_LO();
	I2C_CLOCK_LO();
	I2C_DELAY();

	I2C_CLOCK_HI();
	I2C_DELAY();

	I2C_DATA_HI();
	I2C_DELAY();
}

示例#8

文件： i2cmaster_bitbang.c 项目： doorleyr/blinkm-projects

// Send a START Condition
//
void i2c_start(void)
{
    // set both to high at the same time
    I2C_DDR &=~ (_BV( I2C_DAT ) | _BV( I2C_CLK ));
    _delay_us(i2cbitdelay);
   
    I2C_DATA_LO();
    _delay_us(i2cbitdelay);

    I2C_CLOCK_LO();
    _delay_us(i2cbitdelay);
}

示例#9

文件： ws2812.c 项目： muzfuz/qmk_firmware

// Send a START Condition
//
void I2C_Start(void)
{
    // set both to high at the same time
    I2C_DDR &= ~ ((1 << I2C_DAT) | (1 << I2C_CLK));
    _delay_us(I2C_DELAY);

    I2C_DATA_LO();
    _delay_us(I2C_DELAY);

    I2C_CLOCK_LO();
    _delay_us(I2C_DELAY);
}

示例#10

文件： i2c.c 项目： lieb005/My_Stuff

//! Write an I2C bit.
void I2C_WriteBit( unsigned char c )
{
  if(c>0)
    I2C_DATA_HI();
  else
    I2C_DATA_LO();

  I2C_CLOCK_HI();
  I2CDELAY(1);

  I2C_CLOCK_LO();
  I2CDELAY(1);
}

示例#11

文件： bitbang_i2c.c 项目： kehribar/xmegaE5

void I2C_WriteBit( unsigned char c )
{
	if ( c > 0 )
	{
		I2C_DATA_HI();
	}
	else
	{
		I2C_DATA_LO();
	}

	I2C_CLOCK_HI();
	I2C_DELAY();
	
	I2C_CLOCK_LO();
	I2C_DELAY();

	if ( c > 0 )
	{
		I2C_DATA_LO();
	}
}

示例#12

文件： bitbang_i2c.c 项目： kehribar/xmegaE5

void I2C_Start()
{
	// set both to high at the same time
	// I2C_DDR &= ~( ( 1 << I2C_DAT ) | ( 1 << I2C_CLK ) );
	I2C_CLOCK_HI();
	I2C_DATA_HI();
	I2C_DELAY();

	I2C_DATA_LO();
	I2C_DELAY();

	I2C_CLOCK_LO();
	I2C_DELAY();
}

示例#13

文件： i2c.c 项目： lieb005/My_Stuff

//! Read an I2C bit.
unsigned char I2C_ReadBit()
{
  SDAINPUT;
  I2C_CLOCK_HI();
  
  unsigned char c = READSDA;
  if(c)
    I2C_DATA_HI();
  else
    I2C_DATA_LO();

  SDAOUTPUT;
  I2CDELAY(1);
  I2C_CLOCK_LO();
  I2CDELAY(1);

  return c;
}