57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
|
/* Reflow Oven Controller
|
||
|
|
*
|
||
|
|
* Copyright (C) 2022 Mario Hüttel <mario.huettel@gmx.net>
|
||
|
|
*
|
||
|
|
* This file is part of the Reflow Oven Controller Project.
|
||
|
|
*
|
||
|
|
* The reflow oven controller is free software: you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* The Reflow Oven Control Firmware 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 General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with the reflow oven controller project.
|
||
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _SAFETY_FLASH_CRC_H_
|
||
|
|
#define _SAFETY_FLASH_CRC_H_
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
enum flash_crc_section {
|
||
|
|
FLASH_CRC_VECTOR = 0,
|
||
|
|
FLASH_CRC_TEXT,
|
||
|
|
FLASH_CRC_DATA,
|
||
|
|
FLASH_CRC_CCMDATA,
|
||
|
|
N_FLASH_CRC,
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Perform a CRC check of the flash memory and set appropriate flags
|
||
|
|
* @return negative if internal error occured. Otherwise (independent from CRC check result) 0.
|
||
|
|
* @note This function requires the safety controller (and CRC unit) to be set up before calling!
|
||
|
|
*/
|
||
|
|
int flash_crc_trigger_check(void);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Calculate CRC over flash section
|
||
|
|
* @param sec Section to calculate CRC over
|
||
|
|
* @param[out] crc_result Calculated CRC
|
||
|
|
* @return negative if internal error occured. Otherwise (independent from CRC check result) 0.
|
||
|
|
*/
|
||
|
|
int flash_crc_calc_section(enum flash_crc_section sec, uint32_t *crc_result);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Get expected CRC value of a section
|
||
|
|
* @param sec Section
|
||
|
|
* @return Expected CRC
|
||
|
|
*/
|
||
|
|
uint32_t flash_crc_get_expected_crc(enum flash_crc_section sec);
|
||
|
|
|
||
|
|
#endif /* _SAFETY_FLASH_CRC_H_ */
|