mhu/reflow-oven-control-sw
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Issue #18: Implement CRC calculation module

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This commit is contained in:
Mario Hüttel 2020-09-05 12:17:16 +02:00
parent 928dbfb9f3
commit 04008a07c0
5 changed files with 99 additions and 3 deletions
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2
doc/source/firmware/safety.rst
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@ -13,7 +13,7 @@ On the other hand, fatal errors like an over-temperature error, or memory proble
which forces the output zero, but does not allow any further interaction.
.. toctree::
:maxdepth: 2
:maxdepth: 3
flags
backup-ram

2
stm-firmware/Makefile
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@ -46,7 +46,7 @@ CFILES += ui/lcd.c ui/menu.c reflow-menu.c
CFILES += fatfs/diskio.c fatfs/ff.c fatfs/ffsystem.c fatfs/ffunicode.c fatfs/shimatta_sdio_driver/shimatta_sdio.c
CFILES += pid-controller.c oven-driver.c
CFILES += settings/settings.c settings/settings-sd-card.c
CFILES += stm-periph/crc-unit.c
CFILES += safety/safety-adc.c safety/safety-controller.c safety/watchdog.c safety/fault.c safety/safety-memory.c
DEBUG_DEFINES = -DDEBUGBUILD

1
stm-firmware/include/reflow-controller/safety/safety-memory.h
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@ -52,5 +52,4 @@ struct safety_memory_boot_status {
uint32_t code_updated;
};
#endif /* __SAFETY_MEMORY_H__ */

38
stm-firmware/include/stm-periph/crc-unit.h Normal file
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@ -0,0 +1,38 @@
/* Reflow Oven Controller
*
* Copyright (C) 2020 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.
*
* GDSII-Converter 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 __CRC_UNIT_H__
#define __CRC_UNIT_H__
#include <stdint.h>
void crc_unit_init(void);
void crc_unit_deinit(void);
void crc_unit_reset(void);
uint32_t crc_unit_get_crc(void);
void crc_unit_input(uint32_t data);
void crc_unit_input_array(const uint32_t *data, uint32_t len);
#endif /* __CRC_UNIT_H__ */

59
stm-firmware/stm-periph/crc-unit.c Normal file
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@ -0,0 +1,59 @@
/* Reflow Oven Controller
*
* Copyright (C) 2020 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.
*
* GDSII-Converter 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/>.
*/
#include <stm-periph/crc-unit.h>
#include <stm-periph/clock-enable-manager.h>
#include <stm32/stm32f4xx.h>
void crc_unit_init(void)
{
rcc_manager_enable_clock(&RCC->AHB1ENR, BITMASK_TO_BITNO(RCC_AHB1ENR_CRCEN));
crc_unit_reset();
}
void crc_unit_deinit(void)
{
rcc_manager_disable_clock(&RCC->AHB1ENR, BITMASK_TO_BITNO(RCC_AHB1ENR_CRCEN));
}
void crc_unit_reset(void)
{
CRC->CR = CRC_CR_RESET;
}
uint32_t crc_unit_get_crc(void)
{
return CRC->DR;
}
void crc_unit_input(uint32_t data)
{
CRC->DR = data;
}
void crc_unit_input_array(const uint32_t *data, uint32_t len)
{
uint32_t i;
if (!data)
return;
for (i = 0; i < len; i++)
crc_unit_input(data[i]);
}