FLAG_Management

Functions

__STATIC_INLINE uint32_t ll_uart_get_line_status_flag (uart_regs_t *UARTx)
 Get UART Receive Line Status Flag. More...
 
__STATIC_INLINE void ll_uart_clear_line_status_flag (uart_regs_t *UARTx)
 Clear UART Receive Line Status Flag. More...
 
__STATIC_INLINE uint32_t ll_uart_is_active_flag_rff (uart_regs_t *UARTx)
 Check if the UART Receive FIFO Full Flag is set or not. More...
 
__STATIC_INLINE uint32_t ll_uart_is_active_flag_rfne (uart_regs_t *UARTx)
 Check if the UART Receive FIFO Not Empty Flag is set or not. More...
 
__STATIC_INLINE uint32_t ll_uart_is_active_flag_tfe (uart_regs_t *UARTx)
 Check if the UART Transmit FIFO Empty Flag is set or not. More...
 
__STATIC_INLINE uint32_t ll_uart_is_active_flag_tfnf (uart_regs_t *UARTx)
 Check if the UART Transmit FIFO Not Full Flag is set or not. More...
 
__STATIC_INLINE uint32_t ll_uart_get_it_flag (uart_regs_t *UARTx)
 Get UART interrupt flags. More...
 

Detailed Description

Function Documentation

◆ ll_uart_clear_line_status_flag()

__STATIC_INLINE void ll_uart_clear_line_status_flag ( uart_regs_t *  UARTx)

Clear UART Receive Line Status Flag.

Note
OE/PE/FE/BI/RFE flags can be cleared by reading LSR register.

Register|BitsName --------|-------- LSR | OE LSR | PE LSR | FE LSR | BI LSR | RFE

Parameters
UARTxUART instance
Return values
None

Definition at line 1280 of file ll_uart.h.

◆ ll_uart_get_it_flag()

__STATIC_INLINE uint32_t ll_uart_get_it_flag ( uart_regs_t *  UARTx)

Get UART interrupt flags.

Note
The interrupt flags will be cleared after reading IIR. If interrupt was triggered when reading IIR register, the interrupt will be pended, and No Interrupt Pending Flag will be RESET, read IIR again can get the pended interrupt

Register|BitsName --------|-------- IIR | IID

Parameters
UARTxUART instance
Return values
Returnedvalue can be one or combination of the following values:

Definition at line 1366 of file ll_uart.h.

◆ ll_uart_get_line_status_flag()

__STATIC_INLINE uint32_t ll_uart_get_line_status_flag ( uart_regs_t *  UARTx)

Get UART Receive Line Status Flag.

Note
This function is used to get OE/PE/FE/BI/THRE/TEMT/RFE flags in LSR register. After LSR register was read, OE/PE/FE/BI/RFE flags will be cleared.

Register|BitsName --------|-------- LSR | OE LSR | PE LSR | FE LSR | BI LSR | THRE LSR | TEMT LSR | RFE

Parameters
UARTxUART instance
Return values
Returnedvalue can be a combination of the following values:

Definition at line 1260 of file ll_uart.h.

◆ ll_uart_is_active_flag_rff()

__STATIC_INLINE uint32_t ll_uart_is_active_flag_rff ( uart_regs_t *  UARTx)

Check if the UART Receive FIFO Full Flag is set or not.

Register|BitsName --------|-------- USR | RFF

Parameters
UARTxUART instance
Return values
Stateof bit (1 or 0).

Definition at line 1297 of file ll_uart.h.

◆ ll_uart_is_active_flag_rfne()

__STATIC_INLINE uint32_t ll_uart_is_active_flag_rfne ( uart_regs_t *  UARTx)

Check if the UART Receive FIFO Not Empty Flag is set or not.

Register|BitsName --------|-------- USR | RFNE

Parameters
UARTxUART instance
Return values
Stateof bit (1 or 0).

Definition at line 1312 of file ll_uart.h.

◆ ll_uart_is_active_flag_tfe()

__STATIC_INLINE uint32_t ll_uart_is_active_flag_tfe ( uart_regs_t *  UARTx)

Check if the UART Transmit FIFO Empty Flag is set or not.

Register|BitsName --------|-------- USR | TFE

Parameters
UARTxUART instance
Return values
Stateof bit (1 or 0).

Definition at line 1327 of file ll_uart.h.

◆ ll_uart_is_active_flag_tfnf()

__STATIC_INLINE uint32_t ll_uart_is_active_flag_tfnf ( uart_regs_t *  UARTx)

Check if the UART Transmit FIFO Not Full Flag is set or not.

Register|BitsName --------|-------- USR | TFNF

Parameters
UARTxUART instance
Return values
Stateof bit (1 or 0).

Definition at line 1342 of file ll_uart.h.