Initialization de-initialization functions

Initialization and Configuration functions. More...

Functions
HAL_StatusTypeDef	SDMMC_Init (SDMMC_TypeDef *SDMMCx, SDMMC_InitTypeDef Init)
	Initializes the SDMMC according to the specified parameters in the SDMMC_InitTypeDef and create the associated handle. More...

Detailed Description

Initialization and Configuration functions.

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              ##### Initialization/de-initialization functions #####
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    [..]  This section provides functions allowing to:

Function Documentation

SDMMC_Init()

HAL_StatusTypeDef SDMMC_Init	(	SDMMC_TypeDef *	SDMMCx,
		SDMMC_InitTypeDef	Init
	)

Initializes the SDMMC according to the specified parameters in the SDMMC_InitTypeDef and create the associated handle.

Parameters

SDMMCx	Pointer to SDMMC register base
Init	SDMMC initialization structure

Return values

HAL

status

Definition at line 220 of file stm32l4xx_ll_sdmmc.c.

{
  uint32_t tmpreg = 0;

  /* Check the parameters */
  assert_param(IS_SDMMC_ALL_INSTANCE(SDMMCx));
  assert_param(IS_SDMMC_CLOCK_EDGE(Init.ClockEdge));
#if !defined(STM32L4R5xx) && !defined(STM32L4R7xx) && !defined(STM32L4R9xx) && !defined(STM32L4S5xx) && !defined(STM32L4S7xx) && !defined(STM32L4S9xx)
  assert_param(IS_SDMMC_CLOCK_BYPASS(Init.ClockBypass));
#endif /* !STM32L4R5xx && !STM32L4R7xx && !STM32L4R9xx && !STM32L4S5xx && !STM32L4S7xx && !STM32L4S9xx */
  assert_param(IS_SDMMC_CLOCK_POWER_SAVE(Init.ClockPowerSave));
  assert_param(IS_SDMMC_BUS_WIDE(Init.BusWide));
  assert_param(IS_SDMMC_HARDWARE_FLOW_CONTROL(Init.HardwareFlowControl));
  assert_param(IS_SDMMC_CLKDIV(Init.ClockDiv));

  /* Set SDMMC configuration parameters */
#if !defined(STM32L4R5xx) && !defined(STM32L4R7xx) && !defined(STM32L4R9xx) && !defined(STM32L4S5xx) && !defined(STM32L4S7xx) && !defined(STM32L4S9xx)
  tmpreg |= Init.ClockBypass;
#endif
  tmpreg |= (Init.ClockEdge           |\
             Init.ClockPowerSave      |\
             Init.BusWide             |\
             Init.HardwareFlowControl |\
             Init.ClockDiv
             );

  /* Write to SDMMC CLKCR */
  MODIFY_REG(SDMMCx->CLKCR, CLKCR_CLEAR_MASK, tmpreg);

  return HAL_OK;
}