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https://github.com/eddyem/stm32samples.git
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59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/*
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* usart.h
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*
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* Copyright 2017 Edward V. Emelianoff <eddy@sao.ru, 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 2 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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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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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#ifdef USART3
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#define USARTNUM (3)
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#else
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#define USARTNUM (2)
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#endif
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// input and output buffers size
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#define UARTBUFSZI (32)
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#define UARTBUFSZO (512)
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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(n, str) usart_send(n, str)
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#define usartrx(n) (linerdy[n-1])
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#define usartovr(n) (bufovr[n-1])
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extern volatile int linerdy[], bufovr[], txrdy[];
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void transmit_tbuf();
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void usart_setup();
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int usart_getline(int usartno, char **line);
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void usart_send(int usartno, const char *str);
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void usart_sendn(int usartno, const char *str, uint32_t L);
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void newline(int usartno);
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void usart_putchar(int usartno, const char ch);
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#endif // __USART_H__
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