24 #ifndef UART_HALF_DUPLEX_H 25 #define UART_HALF_DUPLEX_H 35 #ifndef UART_HALF_DUPLEX_DEFAULT_TIMEOUT_US 36 #define UART_HALF_DUPLEX_DEFAULT_TIMEOUT_US (20000LU) 48 #define UART_HALF_DUPLEX_DIR_NONE { NULL, NULL, NULL } given baudrate is not applicable
Low-level UART peripheral driver interface definition.
size_t uart_half_duplex_send(const uart_half_duplex_t *dev, size_t size)
Send the data contained in the driver's buffer.
size_t size
the number of available elements for TX/RX
Configuration for half-duplex UART.
given baudrate is not applicable
unsigned int uart_t
Define default UART type identifier.
uart_half_duplex_dir_t dir
the direction management method
size_t uart_half_duplex_recv(const uart_half_duplex_t *dev, size_t size)
Recv data an fill the driver's buffer.
half-duplex UART direction management method type
uart_half_duplex_params_t params
the half-duplex UART configuration
uint32_t timeout_us
the maximum duration (in microseconds) for waiting data
invalid UART device given
uint32_t baudrate
the baudrate to use
static void uart_half_duplex_set_rx(uart_half_duplex_t *dev)
Set the half-duplex UART bus in RX mode.
int uart_half_duplex_init(uart_half_duplex_t *dev, uint8_t *buffer, size_t buffer_max_size, const uart_half_duplex_params_t *params)
Initialize the half-duplex UART bus to communicate with devices.
static void uart_half_duplex_set_tx(uart_half_duplex_t *dev)
Set the half-duplex UART bus in TX mode.
given mode is not applicable
uart_t uart
the half-duplex UART bus to use
given mode is not applicable
Descriptor struct for half-duplex UART.
uint8_t * buffer
the buffer used for TX and RX
all other internal errors
size_t buffer_max_size
the buffer size
all other internal errors
invalid UART device given