43 lines
1.6 KiB
C
43 lines
1.6 KiB
C
/* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/* Copyright (c) 2016 King Kévin <kingkevin@cuvoodoo.info> */
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/* This library handles the USART */
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/* which USART to use */
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#define USART USART1
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#define USART_RCC RCC_USART1
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#define USART_IRQ NVIC_USART1_IRQ
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#define USART_PORT GPIOA
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#define USART_PIN_TX GPIO_USART1_TX
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#define USART_PIN_RX GPIO_USART1_RX
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/* serial baudrate, in bits per second (with 8N1 8 bits, no parity bit, 1 stop bit settings) */
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#define BAUD 115200
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/* USART RX and TX buffer sizes */
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#define USART_BUFFER 64
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/* show the user how much received is available */
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extern volatile uint8_t usart_received;
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/* setup USART port */
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void usart_setup(void);
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/* put character on USART (blocking) */
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void usart_putchar_blocking(char c);
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/* ensure all data has been transmitted (blocking) */
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void usart_flush(void);
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/* get character from USART (blocking) */
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char usart_getchar(void);
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/* put character on USART (non-blocking until buffer is full) */
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void usart_putchar_nonblocking(char c);
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