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28 lines
978 B
28 lines
978 B
3 months ago
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2013 Gareth McMullin <gareth@blacksphere.co.nz>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser 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 library 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libopencm3/sam/usart.h>
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extern uint32_t pmc_mck_frequency;
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void usart_set_baudrate(uint32_t usart, uint32_t baud)
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{
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USART_BRGR(usart) = pmc_mck_frequency / (16 * baud);
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}
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