C++ (Cpp) I2C_BusFreqSet Examples

Example #1

File: em_i2c.c Project: Rajusr70/makersguide

/***************************************************************************//**
 * @brief
 *   Initialize I2C.
 *
 * @param[in] i2c
 *   Pointer to I2C peripheral register block.
 *
 * @param[in] init
 *   Pointer to I2C initialization structure.
 ******************************************************************************/
void I2C_Init(I2C_TypeDef *i2c, const I2C_Init_TypeDef *init)
{
  EFM_ASSERT(I2C_REF_VALID(i2c));

  i2c->IEN = 0;
  i2c->IFC = _I2C_IFC_MASK;

  /* Set SLAVE select mode */
  BUS_RegBitWrite(&(i2c->CTRL), _I2C_CTRL_SLAVE_SHIFT, init->master ? 0 : 1);

  I2C_BusFreqSet(i2c, init->refFreq, init->freq, init->clhr);

  BUS_RegBitWrite(&(i2c->CTRL), _I2C_CTRL_EN_SHIFT, init->enable);
}

Example #2

/***************************************************************************//**
 * @brief
 *   Initialize I2C.
 *
 * @param[in] i2c
 *   Pointer to I2C peripheral register block.
 *
 * @param[in] init
 *   Pointer to I2C initialization structure.
 ******************************************************************************/
void I2C_Init(I2C_TypeDef *i2c, const I2C_Init_TypeDef *init)
{
  EFM_ASSERT(I2C_REF_VALID(i2c));

  i2c->IEN = 0;
  i2c->IFC = _I2C_IFC_MASK;

  BITBAND_Peripheral(&(i2c->CTRL),
                     _I2C_CTRL_SLAVE_SHIFT,
                     init->master? 0 : 1);

  I2C_BusFreqSet(i2c, init->refFreq, init->freq, init->clhr);

  BITBAND_Peripheral(&(i2c->CTRL),
                     _I2C_CTRL_EN_SHIFT,
                     (unsigned int)(init->enable));
}

Example #3

File: i2c_api.c Project: ChristianRiesen/Smoothie2

/* Set the frequency of the I2C interface */
void i2c_frequency(i2c_t *obj, int hz)
{
    /* Set frequency. As the second argument is 0,
     *  HFPER clock frequency is used as reference freq */
    I2C_BusFreqSet(obj->i2c.i2c, REFERENCE_FREQUENCY, hz, i2cClockHLRStandard);
}