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55 lines
1.3 KiB
55 lines
1.3 KiB
3 months ago
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/** @addtogroup crc_file CRC peripheral API
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@ingroup peripheral_apis
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@author @htmlonly © @endhtmlonly 2012 Karl Palsson <karlp@remake.is>
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*/
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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) 2012 Karl Palsson <karlp@remake.is>
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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/stm32/crc.h>
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/**@{*/
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void crc_reset(void)
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{
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CRC_CR |= CRC_CR_RESET;
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}
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uint32_t crc_calculate(uint32_t data)
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{
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CRC_DR = data;
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/* Data sheet says this blocks until it's ready.... */
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return CRC_DR;
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}
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uint32_t crc_calculate_block(uint32_t *datap, int size)
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{
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int i;
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for (i = 0; i < size; i++) {
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CRC_DR = datap[i];
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}
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return CRC_DR;
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}
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/**@}*/
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