ST STM32F31xx User Manual

Universal synchronous asynchronous receiver
transmitter (USART)
UM1581
556/584
DocID023800 Rev 1
Return values
 None.
Notes
 None.
23.2.17.4 USART_GetFlagStatus
Function Name
FlagStatus USART_GetFlagStatus ( USART_TypeDef *
USARTx, uint32_t USART_FLAG)
Function Description
Checks whether the specified USART flag is set or not.
Parameters
 USARTx : Select the USART peripheral. This parameter can
be one of the following values: USART1 or USART2 or
USART3 or UART4 or UART5.
 USART_FLAG : specifies the flag to check. This parameter
can be one of the following values:
 USART_FLAG_REACK : Receive Enable acknowledge
flag.
 USART_FLAG_TEACK : Transmit Enable acknowledge
flag.
 USART_FLAG_WUF : Wake up flag.
 USART_FLAG_RWU : Receive Wake up flag.
 USART_FLAG_SBK : Send Break flag.
 USART_FLAG_CMF : Character match flag.
 USART_FLAG_BUSY : Busy flag.
 USART_FLAG_ABRF : Auto baud rate flag.
 USART_FLAG_ABRE : Auto baud rate error flag.
 USART_FLAG_EOBF : End of block flag.
 USART_FLAG_RTOF : Receive time out flag.
 USART_FLAG_nCTSS : Inverted nCTS input bit status.
 USART_FLAG_CTS : CTS Change flag.
 USART_FLAG_LBD : LIN Break detection flag.
 USART_FLAG_TXE : Transmit data register empty flag.
 USART_FLAG_TC : Transmission Complete flag.
 USART_FLAG_RXNE : Receive data register not
empty flag.
 USART_FLAG_IDLE : Idle Line detection flag.
 USART_FLAG_ORE : OverRun Error flag.
 USART_FLAG_NE : Noise Error flag.
 USART_FLAG_FE : Framing Error flag.
 USART_FLAG_PE : Parity Error flag.
Return values
 The new state of USART_FLAG (SET or RESET).
Notes
 None.

ST STM32F31xx Specifications

General

Brand	ST
Model	STM32F31xx
Category	Microcontrollers
Language	English