Exemplos de __I2C_GPIO_CLK_CMD em C++ (Cpp)

Exemplo n.º 1

Arquivo: stm32f37x_i2c_cpal_hal.c Projeto: jgobuyan/bootloader

/**
  * @brief  Configure the IO pins used by the I2C device.
  * @param  Device : I2C Device instance.
  * @retval None.
  */
void CPAL_I2C_HAL_GPIOInit(CPAL_DevTypeDef Device)
{
  GPIO_InitTypeDef GPIO_InitStructure;

  /* Enable I2Cx SCL and SDA Pin Clock */
  __I2C_GPIO_CLK_CMD((CPAL_I2C_SCL_GPIO_CLK[Device] | CPAL_I2C_SDA_GPIO_CLK[Device]), ENABLE);
 
  /* Connect PXx to I2C_SCL */
  GPIO_PinAFConfig((GPIO_TypeDef*)CPAL_I2C_SCL_GPIO_PORT[Device],CPAL_I2C_SCL_GPIO_PINSOURCE[Device],CPAL_I2C_AF[Device]);

  /* Connect PXx to I2C_SDA */
  GPIO_PinAFConfig((GPIO_TypeDef*)CPAL_I2C_SDA_GPIO_PORT[Device],CPAL_I2C_SDA_GPIO_PINSOURCE[Device],CPAL_I2C_AF[Device]);  

  /* Set GPIO frequency to 50MHz */
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

  /* Select Alternate function mode */
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;

  /* Select output Open Drain type */
  GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;

  /* Disable internal Pull-up */
  GPIO_InitStructure.GPIO_PuPd  = GPIO_PuPd_NOPULL;

  /* Initialize I2Cx SCL Pin */
  GPIO_InitStructure.GPIO_Pin = CPAL_I2C_SCL_GPIO_PIN[Device];
  GPIO_Init((GPIO_TypeDef*)CPAL_I2C_SCL_GPIO_PORT[Device], &GPIO_InitStructure);

  /* Initialize I2Cx SDA Pin */
  GPIO_InitStructure.GPIO_Pin = CPAL_I2C_SDA_GPIO_PIN[Device];
  GPIO_Init((GPIO_TypeDef*)CPAL_I2C_SDA_GPIO_PORT[Device], &GPIO_InitStructure); 
}

Exemplo n.º 2

Arquivo: cpal_i2c_hal_stm32f10x.c Projeto: ADTL/ARMWork

/**
  * @brief  Configure the IO pins used by the I2C device.
  * @param  Device : I2C Device instance. 
  * @retval None. 
  */
void CPAL_I2C_HAL_GPIOInit(CPAL_DevTypeDef Device)
{  
  GPIO_InitTypeDef GPIO_InitStructure;
    
  /* Enable I2Cx SCL and SDA Pin Clock */
  __I2C_GPIO_CLK_CMD((CPAL_I2C_SCL_GPIO_CLK[Device] | CPAL_I2C_SDA_GPIO_CLK[Device]), ENABLE); 
   
  /* Enable Pin Remap if PB8 (SCL) and PB9 (SDA) is used for I2C1 */
  if ((Device == CPAL_I2C1) && (CPAL_I2C1_SCL_GPIO_PIN == GPIO_Pin_8) && (CPAL_I2C1_SDA_GPIO_PIN == GPIO_Pin_9))
  {
    /* Enable GPIO Alternative Functions */
    __AFIO_CLK_CMD(ENABLE);
   
    /* Enable I2C1 pin Remap */
    GPIO_PinRemapConfig(GPIO_Remap_I2C1, ENABLE);
  }
  
  /* Set GPIO frequency to 50MHz */
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  
  /* Select Output open-drain mode */
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
                                    
  /* Initialize I2Cx SCL Pin */ 
  GPIO_InitStructure.GPIO_Pin = CPAL_I2C_SCL_GPIO_PIN[Device];
  
  GPIO_Init((GPIO_TypeDef*)CPAL_I2C_SCL_GPIO_PORT[Device], &GPIO_InitStructure);

  /* Initialize I2Cx SDA Pin */
  GPIO_InitStructure.GPIO_Pin = CPAL_I2C_SDA_GPIO_PIN[Device];
  
  GPIO_Init((GPIO_TypeDef*)CPAL_I2C_SDA_GPIO_PORT[Device], &GPIO_InitStructure);   
}