async_tx_state_s Struct Reference

#include <async.h>

Public Attributes
int16_t	data_bits
	The number of data bits per character.
int16_t	parity
	The type of parity.
int16_t	total_data_bits
	Total number of bits per frame, including any parity bit.
int16_t	total_bits
	Total number of bits per frame, including any parity bit and the stop bits.
span_get_byte_func_t	get_byte
	A pointer to the callback routine used to get characters to be transmitted.
void *	user_data
	An opaque pointer passed when calling get_byte.
int	presend_bits
	The minimum number of stop bits to send before character transmission begins.
uint16_t	frame_in_progress
	A current, partially transmitted, character with its optional parity bit attached.
int16_t	bitpos
	The current bit position within a partially transmitted character.

Detailed Description

Asynchronous data transmit descriptor. This defines the state of a single working instance of a byte to asynchronous serial converter, for use in FSK modems.

Member Data Documentation

bitpos

int16_t async_tx_state_s::bitpos

The current bit position within a partially transmitted character.

Referenced by async_tx_get_bit(), and async_tx_init().

data_bits

int16_t async_tx_state_s::data_bits

The number of data bits per character.

Referenced by async_tx_get_bit(), and async_tx_init().

frame_in_progress

uint16_t async_tx_state_s::frame_in_progress

A current, partially transmitted, character with its optional parity bit attached.

Referenced by async_tx_get_bit(), and async_tx_init().

get_byte

span_get_byte_func_t async_tx_state_s::get_byte

A pointer to the callback routine used to get characters to be transmitted.

Referenced by async_tx_get_bit(), and async_tx_init().

parity

int16_t async_tx_state_s::parity

The type of parity.

Referenced by async_tx_get_bit(), and async_tx_init().

presend_bits

int async_tx_state_s::presend_bits

The minimum number of stop bits to send before character transmission begins.

Referenced by async_tx_get_bit(), async_tx_init(), and async_tx_presend_bits().

total_bits

int16_t async_tx_state_s::total_bits

Total number of bits per frame, including any parity bit and the stop bits.

Referenced by async_tx_get_bit(), and async_tx_init().

total_data_bits

int16_t async_tx_state_s::total_data_bits

Total number of bits per frame, including any parity bit.

Referenced by async_tx_get_bit(), and async_tx_init().

user_data

void* async_tx_state_s::user_data

An opaque pointer passed when calling get_byte.

Referenced by async_tx_get_bit(), and async_tx_init().

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The documentation for this struct was generated from the following file:

• private/async.h