lora-car/libopencm3/lib/stm32/common/crc_common_all.c
Arti Zirk 054740c5de git subrepo clone https://github.com/libopencm3/libopencm3.git
subrepo:
  subdir:   "libopencm3"
  merged:   "88e91c9a7cce"
upstream:
  origin:   "https://github.com/libopencm3/libopencm3.git"
  branch:   "master"
  commit:   "88e91c9a7cce"
git-subrepo:
  version:  "0.4.3"
  origin:   "???"
  commit:   "???"
2023-01-21 21:54:42 +02:00

55 lines
1.3 KiB
C

/** @addtogroup crc_file CRC peripheral API
@ingroup peripheral_apis
@author @htmlonly &copy; @endhtmlonly 2012 Karl Palsson <karlp@remake.is>
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2012 Karl Palsson <karlp@remake.is>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libopencm3/stm32/crc.h>
/**@{*/
void crc_reset(void)
{
CRC_CR |= CRC_CR_RESET;
}
uint32_t crc_calculate(uint32_t data)
{
CRC_DR = data;
/* Data sheet says this blocks until it's ready.... */
return CRC_DR;
}
uint32_t crc_calculate_block(uint32_t *datap, int size)
{
int i;
for (i = 0; i < size; i++) {
CRC_DR = datap[i];
}
return CRC_DR;
}
/**@}*/