Initialization and de-initialization functions

Collaboration diagram for Initialization and de-initialization functions:

Functions
ErrorStatus	LL_USART_DeInit (const USART_TypeDef *USARTx)
	De-initialize USART registers (Registers restored to their default values). More...
ErrorStatus	LL_USART_Init (USART_TypeDef *USARTx, const LL_USART_InitTypeDef *USART_InitStruct)
	Initialize USART registers according to the specified parameters in USART_InitStruct. More...
void	LL_USART_StructInit (LL_USART_InitTypeDef *USART_InitStruct)
	Set each LL_USART_InitTypeDef field to default value. More...
ErrorStatus	LL_USART_ClockInit (USART_TypeDef *USARTx, const LL_USART_ClockInitTypeDef *USART_ClockInitStruct)
	Initialize USART Clock related settings according to the specified parameters in the USART_ClockInitStruct. More...
void	LL_USART_ClockStructInit (LL_USART_ClockInitTypeDef *USART_ClockInitStruct)
	Set each field of a LL_USART_ClockInitTypeDef type structure to default value. More...

Detailed Description

Function Documentation

LL_USART_ClockInit()

ErrorStatus LL_USART_ClockInit	(	USART_TypeDef *	USARTx,
		const LL_USART_ClockInitTypeDef *	USART_ClockInitStruct
	)

Initialize USART Clock related settings according to the specified parameters in the USART_ClockInitStruct.

Note

As some bits in USART configuration registers can only be written when the USART is disabled (USART_CR1_UE bit =0), USART IP should be in disabled state prior calling this function. Otherwise, ERROR result will be returned.

Parameters

USARTx	USART Instance
USART_ClockInitStruct	Pointer to a LL_USART_ClockInitTypeDef structure that contains the Clock configuration information for the specified USART peripheral.

Return values

An	ErrorStatus enumeration value: SUCCESS: USART registers related to Clock settings are initialized according to USART_ClockInitStruct content ERROR: Problem occurred during USART Registers initialization

Definition at line 412 of file stm32f4xx_ll_usart.c.

LL_USART_ClockStructInit()

void LL_USART_ClockStructInit

(

LL_USART_ClockInitTypeDef *

USART_ClockInitStruct

)

Set each field of a LL_USART_ClockInitTypeDef type structure to default value.

Parameters

USART_ClockInitStruct

Pointer to a LL_USART_ClockInitTypeDef structure whose fields will be set to default values.

Return values

None

Definition at line 471 of file stm32f4xx_ll_usart.c.

LL_USART_DeInit()

ErrorStatus LL_USART_DeInit

(

const USART_TypeDef *

USARTx

)

De-initialize USART registers (Registers restored to their default values).

Parameters

USARTx

USART Instance

Return values

An	ErrorStatus enumeration value: SUCCESS: USART registers are de-initialized ERROR: USART registers are not de-initialized

Definition at line 124 of file stm32f4xx_ll_usart.c.

LL_USART_Init()

ErrorStatus LL_USART_Init	(	USART_TypeDef *	USARTx,
		const LL_USART_InitTypeDef *	USART_InitStruct
	)

Initialize USART registers according to the specified parameters in USART_InitStruct.

Note

As some bits in USART configuration registers can only be written when the USART is disabled (USART_CR1_UE bit =0), USART IP should be in disabled state prior calling this function. Otherwise, ERROR result will be returned.

Baud rate value stored in USART_InitStruct BaudRate field, should be valid (different from 0).

Parameters

USARTx	USART Instance
USART_InitStruct	pointer to a LL_USART_InitTypeDef structure that contains the configuration information for the specified USART peripheral.

Return values

An	ErrorStatus enumeration value: SUCCESS: USART registers are initialized according to USART_InitStruct content ERROR: Problem occurred during USART Registers initialization

Definition at line 248 of file stm32f4xx_ll_usart.c.

LL_USART_StructInit()

void LL_USART_StructInit

(

LL_USART_InitTypeDef *

USART_InitStruct

)

Set each LL_USART_InitTypeDef field to default value.

Parameters

USART_InitStruct

Pointer to a LL_USART_InitTypeDef structure whose fields will be set to default values.

Return values

None

Definition at line 388 of file stm32f4xx_ll_usart.c.