ST STM32F2 User Manual

UM1940
LL USART Generic Driver
DocID028236 Rev 2
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values).
Parameters
USARTx: USART Instance
Return values
An: ErrorStatus enumeration value:
SUCCESS: USART registers are de-initialized
ERROR: USART registers are not de-initialized
LL_USART_Init
Function name
ErrorStatus LL_USART_Init (USART_TypeDef * USARTx,
LL_USART_InitTypeDef * USART_InitStruct)
Function description
Initialize USART registers according to the specified parameters in
USART_InitStruct.
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
Notes
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).
LL_USART_StructInit
Function name
void LL_USART_StructInit (LL_USART_InitTypeDef *
USART_InitStruct)
Function description
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:
LL_USART_ClockInit
Function name
ErrorStatus LL_USART_ClockInit (USART_TypeDef * USARTx,
LL_USART_ClockInitTypeDef * USART_ClockInitStruct)
Function description
Initialize USART Clock related settings according to the specified
parameters in the USART_ClockInitStruct.
Parameters
USARTx: USART Instance
USART_ClockInitStruct: pointer to a
LL_USART_ClockInitTypeDef structure that contains the
Clock configuration information for the specified USART
peripheral.

ST STM32F2 Specifications

General

Brand	ST
Model	STM32F2
Category	Microcontrollers
Language	English