示例#1
0
/**
  * @brief  Initializes the SDIO according to the specified
  *         parameters in the SDIO_InitTypeDef and create the associated handle.
  * @param  SDIOx: Pointer to SDIO register base
  * @param  Init: SDIO initialization structure   
  * @retval HAL status
  */
HAL_StatusTypeDef SDIO_Init(SDIO_TypeDef *SDIOx, SDIO_InitTypeDef Init)
{
  uint32_t tmpreg = 0; 

  /* Check the parameters */
  assert_param(IS_SDIO_ALL_INSTANCE(SDIOx));
  assert_param(IS_SDIO_CLOCK_EDGE(Init.ClockEdge)); 
  assert_param(IS_SDIO_CLOCK_BYPASS(Init.ClockBypass));
  assert_param(IS_SDIO_CLOCK_POWER_SAVE(Init.ClockPowerSave));
  assert_param(IS_SDIO_BUS_WIDE(Init.BusWide));
  assert_param(IS_SDIO_HARDWARE_FLOW_CONTROL(Init.HardwareFlowControl));
  assert_param(IS_SDIO_CLKDIV(Init.ClockDiv));
  
  /* Set SDIO configuration parameters */
  tmpreg |= (Init.ClockEdge           |\
             Init.ClockBypass         |\
             Init.ClockPowerSave      |\
             Init.BusWide             |\
             Init.HardwareFlowControl |\
             Init.ClockDiv
             ); 
  
  /* Write to SDIO CLKCR */
  MODIFY_REG(SDIOx->CLKCR, CLKCR_CLEAR_MASK, tmpreg);  

  return HAL_OK;
}
示例#2
0
/*******************************************************************************
* Function Name  : SDIO_Init
* Description    : Initializes the SDIO peripheral according to the specified 
*                  parameters in the SDIO_InitStruct.
* Input          : SDIO_InitStruct : pointer to a SDIO_InitTypeDef structure 
*                  that contains the configuration information for the SDIO 
*                  peripheral.
* Output         : None
* Return         : None
*******************************************************************************/
void SDIO_Init(SDIO_InitTypeDef* SDIO_InitStruct)
{
  u32 tmpreg = 0;
    
  /* Check the parameters */
  assert_param(IS_SDIO_CLOCK_EDGE(SDIO_InitStruct->SDIO_ClockEdge));
  assert_param(IS_SDIO_CLOCK_BYPASS(SDIO_InitStruct->SDIO_ClockBypass));
  assert_param(IS_SDIO_CLOCK_POWER_SAVE(SDIO_InitStruct->SDIO_ClockPowerSave));
  assert_param(IS_SDIO_BUS_WIDE(SDIO_InitStruct->SDIO_BusWide));
  assert_param(IS_SDIO_HARDWARE_FLOW_CONTROL(SDIO_InitStruct->SDIO_HardwareFlowControl)); 
   
/*---------------------------- SDIO CLKCR Configuration ------------------------*/  
  /* Get the SDIO CLKCR value */
  tmpreg = SDIO->CLKCR;
  
  /* Clear CLKDIV, PWRSAV, BYPASS, WIDBUS, NEGEDGE, HWFC_EN bits */
  tmpreg &= CLKCR_CLEAR_MASK;
  
  /* Set CLKDIV bits according to SDIO_ClockDiv value */
  /* Set PWRSAV bit according to SDIO_ClockPowerSave value */
  /* Set BYPASS bit according to SDIO_ClockBypass value */
  /* Set WIDBUS bits according to SDIO_BusWide value */
  /* Set NEGEDGE bits according to SDIO_ClockEdge value */
  /* Set HWFC_EN bits according to SDIO_HardwareFlowControl value */
  tmpreg |= (SDIO_InitStruct->SDIO_ClockDiv  | SDIO_InitStruct->SDIO_ClockPowerSave |
             SDIO_InitStruct->SDIO_ClockBypass | SDIO_InitStruct->SDIO_BusWide |
             SDIO_InitStruct->SDIO_ClockEdge | SDIO_InitStruct->SDIO_HardwareFlowControl); 
  
  /* Write to SDIO CLKCR */
  SDIO->CLKCR = tmpreg;             
}
示例#3
0
/**
  * @brief  Initializes the SDIO according to the specified
  *         parameters in the SDIO_InitTypeDef and create the associated handle.
  * @param  SDIOx: Pointer to SDIO register base
  * @param  Init: SDIO initialization structure   
  * @retval HAL status
  */
HAL_StatusTypeDef SDIO_Init(SDIO_TypeDef *SDIOx, SDIO_InitTypeDef Init)
{
  __IO uint32_t tmpreg = 0; 

  /* Check the parameters */
  assert_param(IS_SDIO_ALL_INSTANCE(SDIOx));
  assert_param(IS_SDIO_CLOCK_EDGE(Init.ClockEdge)); 
  assert_param(IS_SDIO_CLOCK_BYPASS(Init.ClockBypass));
  assert_param(IS_SDIO_CLOCK_POWER_SAVE(Init.ClockPowerSave));
  assert_param(IS_SDIO_BUS_WIDE(Init.BusWide));
  assert_param(IS_SDIO_HARDWARE_FLOW_CONTROL(Init.HardwareFlowControl));
  assert_param(IS_SDIO_CLKDIV(Init.ClockDiv));
  
  /* Get the SDIO CLKCR value */
  tmpreg = SDIOx->CLKCR;
  
  /* Clear CLKDIV, PWRSAV, BYPASS, WIDBUS, NEGEDGE, HWFC_EN bits */
  tmpreg &= CLKCR_CLEAR_MASK;
  
  /* Set SDIO configuration parameters */
  tmpreg |= (Init.ClockEdge           |\
             Init.ClockBypass         |\
             Init.ClockPowerSave      |\
             Init.BusWide             |\
             Init.HardwareFlowControl |\
             Init.ClockDiv
             ); 
  
  /* Write to SDIO CLKCR */
  SDIOx->CLKCR = tmpreg;  

  return HAL_OK;
}