ST STM32F2 User Manual

LL USART Generic Driver
UM1940
1260/1371
DocID028236 Rev 2
Notes
Macro IS_IRDA_INSTANCE(USARTx) can be used to check
whether or not IrDA feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
reference:
GTPR PSC LL_USART_SetIrdaPrescaler
LL_USART_GetIrdaPrescaler
Function name
__STATIC_INLINE uint32_t LL_USART_GetIrdaPrescaler
(USART_TypeDef * USARTx)
Function description
Return Irda prescaler value, used for dividing the USART clock
source to achieve the Irda Low Power frequency (8 bits value)
Parameters
USARTx: USART Instance
Return values
Irda: prescaler value (Value between Min_Data=0x00 and
Max_Data=0xFF)
Notes
Macro IS_IRDA_INSTANCE(USARTx) can be used to check
whether or not IrDA feature is supported by the USARTx
instance.
Reference Manual to
LL API cross
reference:
GTPR PSC LL_USART_GetIrdaPrescaler
LL_USART_EnableSmartcardNACK
Function name
__STATIC_INLINE void LL_USART_EnableSmartcardNACK
(USART_TypeDef * USARTx)
Function description
Enable Smartcard NACK transmission.
Parameters
USARTx: USART Instance
Return values
None:
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the
USARTx instance.
Reference Manual to
LL API cross
reference:
CR3 NACK LL_USART_EnableSmartcardNACK
LL_USART_DisableSmartcardNACK
Function name
__STATIC_INLINE void LL_USART_DisableSmartcardNACK
(USART_TypeDef * USARTx)
Function description
Disable Smartcard NACK transmission.
Parameters
USARTx: USART Instance
Return values
None:
Notes
Macro IS_SMARTCARD_INSTANCE(USARTx) can be used
to check whether or not Smartcard feature is supported by the

ST STM32F2 Specifications

General

Brand	ST
Model	STM32F2
Category	Microcontrollers
Language	English