Select Git revision
Damien George authored
UART object now uses a stream-like interface: read, readall, readline, readinto, readchar, write, writechar. Timeouts are configured when the UART object is initialised, using timeout and timeout_char keyword args. The object includes optional read buffering, using interrupts. You can set the buffer size dynamically using read_buf_len keyword arg. A size of 0 disables buffering.
uart.h 2.02 KiB
/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
typedef enum {
PYB_UART_NONE = 0,
PYB_UART_1 = 1,
PYB_UART_2 = 2,
PYB_UART_3 = 3,
PYB_UART_4 = 4,
PYB_UART_5 = 5,
PYB_UART_6 = 6,
#if defined(PYBV10)
PYB_UART_XA = 4, // UART4 on X1, X2 = PA0, PA1
PYB_UART_XB = 1, // USART1 on X9, X10 = PB6, PB7
PYB_UART_YA = 6, // USART6 on Y1, Y2 = PC6, PC7
PYB_UART_YB = 3, // USART3 on Y9, Y10 = PB10, PB11
#endif
} pyb_uart_t;
typedef struct _pyb_uart_obj_t pyb_uart_obj_t;
extern const mp_obj_type_t pyb_uart_type;
void uart_init0(void);
void uart_deinit(void);
void uart_irq_handler(mp_uint_t uart_id);
bool uart_rx_any(pyb_uart_obj_t *uart_obj);
int uart_rx_char(pyb_uart_obj_t *uart_obj);
void uart_tx_strn(pyb_uart_obj_t *uart_obj, const char *str, uint len);
void uart_tx_strn_cooked(pyb_uart_obj_t *uart_obj, const char *str, uint len);