USART Events

The USART driver generates call back events that are notified via the function ARM_USART_SignalEvent. More...

Macros
#define	ARM_USART_EVENT_SEND_COMPLETE   (1UL << 0)
	Send completed; however USART may still transmit data.
#define	ARM_USART_EVENT_RECEIVE_COMPLETE   (1UL << 1)
	Receive completed.
#define	ARM_USART_EVENT_TRANSFER_COMPLETE   (1UL << 2)
	Transfer completed.
#define	ARM_USART_EVENT_TX_COMPLETE   (1UL << 3)
	Transmit completed (optional)
#define	ARM_USART_EVENT_TX_UNDERFLOW   (1UL << 4)
	Transmit data not available (Synchronous Slave)
#define	ARM_USART_EVENT_RX_OVERFLOW   (1UL << 5)
	Receive data overflow.
#define	ARM_USART_EVENT_RX_TIMEOUT   (1UL << 6)
	Receive character timeout (optional)
#define	ARM_USART_EVENT_RX_BREAK   (1UL << 7)
	Break detected on receive.
#define	ARM_USART_EVENT_RX_FRAMING_ERROR   (1UL << 8)
	Framing error detected on receive.
#define	ARM_USART_EVENT_RX_PARITY_ERROR   (1UL << 9)
	Parity error detected on receive.
#define	ARM_USART_EVENT_CTS   (1UL << 10)
	CTS state changed (optional)
#define	ARM_USART_EVENT_DSR   (1UL << 11)
	DSR state changed (optional)
#define	ARM_USART_EVENT_DCD   (1UL << 12)
	DCD state changed (optional)
#define	ARM_USART_EVENT_RI   (1UL << 13)
	RI state changed (optional)

Description

The USART driver generates call back events that are notified via the function ARM_USART_SignalEvent.

This section provides the event values for the ARM_USART_SignalEvent callback function.

The following call back notification events are generated:

Macro Definition Documentation

ARM_USART_EVENT_SEND_COMPLETE

#define ARM_USART_EVENT_SEND_COMPLETE   (1UL << 0)

Send completed; however USART may still transmit data.

ARM_USART_EVENT_RECEIVE_COMPLETE

#define ARM_USART_EVENT_RECEIVE_COMPLETE   (1UL << 1)

Receive completed.

ARM_USART_EVENT_TRANSFER_COMPLETE

#define ARM_USART_EVENT_TRANSFER_COMPLETE   (1UL << 2)

Transfer completed.

ARM_USART_EVENT_TX_COMPLETE

#define ARM_USART_EVENT_TX_COMPLETE   (1UL << 3)

Transmit completed (optional)

ARM_USART_EVENT_TX_UNDERFLOW

#define ARM_USART_EVENT_TX_UNDERFLOW   (1UL << 4)

Transmit data not available (Synchronous Slave)

ARM_USART_EVENT_RX_OVERFLOW

#define ARM_USART_EVENT_RX_OVERFLOW   (1UL << 5)

Receive data overflow.

ARM_USART_EVENT_RX_TIMEOUT

#define ARM_USART_EVENT_RX_TIMEOUT   (1UL << 6)

Receive character timeout (optional)

ARM_USART_EVENT_RX_BREAK

#define ARM_USART_EVENT_RX_BREAK   (1UL << 7)

Break detected on receive.

ARM_USART_EVENT_RX_FRAMING_ERROR

#define ARM_USART_EVENT_RX_FRAMING_ERROR   (1UL << 8)

Framing error detected on receive.

ARM_USART_EVENT_RX_PARITY_ERROR

#define ARM_USART_EVENT_RX_PARITY_ERROR   (1UL << 9)

Parity error detected on receive.

ARM_USART_EVENT_CTS

#define ARM_USART_EVENT_CTS   (1UL << 10)

CTS state changed (optional)

ARM_USART_EVENT_DSR

#define ARM_USART_EVENT_DSR   (1UL << 11)

DSR state changed (optional)

ARM_USART_EVENT_DCD

#define ARM_USART_EVENT_DCD   (1UL << 12)

DCD state changed (optional)

ARM_USART_EVENT_RI

#define ARM_USART_EVENT_RI   (1UL << 13)

RI state changed (optional)