2.23. uart_soft
— Bitbang UART¶
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
¶