2.26. uart_soft
— Software Universal Asynchronous Receiver/Transmitter¶
Source code: src/drivers/uart_soft.h, src/drivers/uart_soft.c
Defines
-
uart_soft_read
(self_p, buf_p, size)¶ Read data from the UART.
- Return
- Number of received bytes or negative error code.
- Parameters
self_p
: Initialized driver object.buf_p
: Buffer to read into.size
: Number of bytes to receive.
-
uart_soft_write
(self_p, buf_p, size)¶ Write data to the UART.
- Return
- number of sent bytes or negative error code.
- Parameters
self_p
: Initialized driver object.buf_p
: Buffer to write.size
: Number of bytes to write.
Functions
-
int
uart_soft_init
(struct uart_soft_driver_t *self_p, struct pin_device_t *tx_dev_p, struct pin_device_t *rx_dev_p, struct exti_device_t *rx_exti_dev_p, int baudrate, void *rxbuf_p, size_t size)¶ Initialize driver object from given configuration.
- Return
- zero(0) or negative error code.
- Parameters
self_p
: Driver object to be initialized.tx_dev_p
: TX pin device.rx_dev_p
: RX pin device.rx_exti_dev_p
: RX pin external interrupt device.baudrate
: Baudrate.rxbuf_p
: Reception buffer.size
: Reception buffer size.
-
struct
uart_soft_driver_t
¶ - #include <uart_soft.h>