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53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
/*
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* This file is part of the F303usartDMA project.
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* Copyright 2021 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* 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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#pragma once
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#ifndef __USART_H__
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#define __USART_H__
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#include "hardware.h"
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// max pause (ms) from buffer filling and data transmitting
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#define TRANSMIT_DELAY (15)
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// input and output buffers size (don't forget trailing zero in input buffer!)
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// DMA generates TC irq while last byte isn't in buffer, so, to get 80 symbols excluding '\n' we need 82 bytes in buffer
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#define UARTBUFSZI (82)
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#define UARTBUFSZO (80)
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// timeout between data bytes
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#ifndef TIMEOUT_MS
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#define TIMEOUT_MS (1500)
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#endif
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// macro for static strings
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#define SEND(str) usart_send(str)
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#define newline() usart_putchar('\n')
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int usart_ovr();
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int chk_usart();
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void usart_setup();
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int usart_getline(char **line);
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void usart_send(const char *str);
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void usart_sendn(const char *str, uint32_t L);
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void usart_putchar(const char ch);
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void usart_stop();
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#endif // __USART_H__
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