Merge branch 'brown-out-detection' into dev
This commit is contained in:
commit
bb0ea908cb
45
stm-firmware/include/stm-periph/option-bytes.h
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45
stm-firmware/include/stm-periph/option-bytes.h
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/* Reflow Oven Controller
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*
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* Copyright (C) 2020 Mario Hüttel <mario.huettel@gmx.net>
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*
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* This file is part of the Reflow Oven Controller Project.
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*
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* The reflow oven controller is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* GDSII-Converter 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with the reflow oven controller project.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _OPTION_BYTES_H_
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#define _OPTION_BYTES_H_
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#include <stdint.h>
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struct option_bytes {
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/* Word 1 */
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uint32_t read_protection;// : 8;
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uint32_t nrst_standby;// : 1;
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uint32_t nrst_stop;// : 1;
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uint32_t wdg_sw;// : 1;
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uint32_t brown_out_level;// : 2;
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/* Word 2 */
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uint32_t nwrpi;// : 12;
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};
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/**
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* @brief Read out the option bytes to structs
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* @param opts
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*/
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void stm_option_bytes_read(struct option_bytes *opts);
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int stm_option_bytes_program(const struct option_bytes *opts);
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#endif /* _OPTION_BYTES_H_ */
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@ -49,6 +49,7 @@
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#include <reflow-controller/temp-profile/temp-profile-executer.h>
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#include <reflow-controller/settings/spi-eeprom.h>
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#include <reflow-controller/main-cycle-counter.h>
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#include <stm-periph/option-bytes.h>
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static void setup_nvic_priorities(void)
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{
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@ -211,6 +212,35 @@ static inline void handle_boot_status(void)
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}
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}
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/**
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* @brief Read out the option bytes of the STM32 and program them to the desired values.
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*
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* - This function currently forces the brown out level to Level 3.
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*/
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static void check_and_program_opt_bytes(void)
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{
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struct option_bytes opts;
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int err;
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/** - Read option bytes */
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stm_option_bytes_read(&opts);
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if (opts.brown_out_level != 0) {
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/* Set the brown out level to level 3 => highest brown out limit. */
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opts.brown_out_level = 0;
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/** - Program the option bytes if brown out level was not set correctly */
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err = stm_option_bytes_program(&opts);
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/** - If programming failes, enter panic mode */
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if (err)
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panic_mode();
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/** - If programming is successful, reset the system to apply new settings */
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NVIC_SystemReset();
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}
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}
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/**
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* @brief Setup the system.
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*
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@ -220,6 +250,9 @@ static inline void setup_system(void)
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{
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float tmp;
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/** - Read the option bytes and if necessary program them to the desired values */
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check_and_program_opt_bytes();
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/** - Setup the NVIC priorities of the core peripherals using interrupts */
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setup_nvic_priorities();
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@ -45,6 +45,8 @@
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#include <reflow-controller/temp-profile/temp-profile-executer.h>
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#include <reflow-controller/updater/updater.h>
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#include <reflow-controller/main-cycle-counter.h>
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#include <stm-periph/option-bytes.h>
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#include <stdio.h>
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#ifndef GIT_VER
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@ -883,6 +885,25 @@ shellmatta_retCode_t shell_cmd_filter_alpha(const shellmatta_handle_t handle, co
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return SHELLMATTA_OK;
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}
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shellmatta_retCode_t shell_cmd_print_opt_bytes(const shellmatta_handle_t handle,
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const char *args, uint32_t len)
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{
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(void)args;
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(void)len;
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struct option_bytes opts;
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stm_option_bytes_read(&opts);
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shellmatta_printf(handle, "Brown-out Level: 0x%x\r\n", opts.brown_out_level);
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shellmatta_printf(handle, "nRST Standby: 0x%x\r\n", opts.nrst_standby);
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shellmatta_printf(handle, "nRST Stop: 0x%x\r\n", opts.nrst_stop);
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shellmatta_printf(handle, "Write Protection: 0x%x\r\n", opts.nwrpi);
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shellmatta_printf(handle, "Read Protection: 0x%x\r\n", opts.read_protection);
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shellmatta_printf(handle, "SW Watchdog: 0x%x\r\n", opts.wdg_sw);
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return SHELLMATTA_OK;
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}
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//typedef struct shellmatta_cmd
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//{
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// char *cmd; /**< command name */
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@ -1076,6 +1097,14 @@ static shellmatta_cmd_t cmd[24] = {
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.helpText = "Sets the filter constant",
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.usageText = "filter-alpha <alpha>",
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.cmdFct = shell_cmd_filter_alpha,
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.next = &cmd[23],
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},
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{
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.cmd = "print-option-bytes",
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.cmdAlias = "opt-bytes",
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.helpText = "Print the currently set option bytes of the STM32",
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.usageText = "",
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.cmdFct = shell_cmd_print_opt_bytes,
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.next = NULL,
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}
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};
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90
stm-firmware/stm-periph/option-bytes.c
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90
stm-firmware/stm-periph/option-bytes.c
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@ -0,0 +1,90 @@
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/* Reflow Oven Controller
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*
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* Copyright (C) 2021 Mario Hüttel <mario.huettel@gmx.net>
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*
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* This file is part of the Reflow Oven Controller Project.
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*
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* The reflow oven controller is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* The Reflow Oven Control Firmware 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with the reflow oven controller project.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stm-periph/option-bytes.h>
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#include <stm32/stm32f4xx.h>
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/**
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* @brief First key for unlocking hte option byte write access
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*/
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#define FLASH_OPTION_KEY1 (0x08192A3BUL)
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/**
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* @brief Second key for unlocking hte option byte write access
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*/
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#define FLASH_OPTION_KEY2 (0x4C5D6E7FUL)
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void stm_option_bytes_read(struct option_bytes *opts)
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{
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uint32_t opt_reg;
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if (!opts)
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return;
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opt_reg = FLASH->OPTCR;
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opts->brown_out_level = (opt_reg & FLASH_OPTCR_BOR_LEV) >> 2;
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opts->nrst_standby = (opt_reg & FLASH_OPTCR_nRST_STDBY) >> 7;
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opts->nrst_stop = (opt_reg & FLASH_OPTCR_nRST_STOP) >> 6;
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opts->nwrpi = (opt_reg & FLASH_OPTCR_nWRP) >> 16;
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opts->read_protection = (opt_reg & FLASH_OPTCR_RDP) >> 8;
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opts->wdg_sw = (opt_reg & FLASH_OPTCR_WDG_SW) >> 5;
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}
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int stm_option_bytes_program(const struct option_bytes *opts)
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{
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uint32_t reg;
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FLASH->OPTKEYR = FLASH_OPTION_KEY1;
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FLASH->OPTKEYR = FLASH_OPTION_KEY2;
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__DSB();
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if (FLASH->OPTCR & FLASH_OPTCR_OPTLOCK) {
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/* Unlocking failed */
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return -1;
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}
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reg = FLASH->OPTCR;
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reg &= ~FLASH_OPTCR_BOR_LEV;
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reg &= ~FLASH_OPTCR_nRST_STDBY;
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reg &= ~FLASH_OPTCR_nRST_STOP;
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reg &= ~FLASH_OPTCR_nWRP;
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reg &= ~FLASH_OPTCR_RDP;
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reg &= ~FLASH_OPTCR_WDG_SW;
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reg |= (opts->brown_out_level << 2) & FLASH_OPTCR_BOR_LEV;
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reg |= (opts->nrst_standby << 7) & FLASH_OPTCR_nRST_STDBY;
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reg |= (opts->nrst_stop << 6) & FLASH_OPTCR_nRST_STOP;
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reg |= (opts->nwrpi << 16) & FLASH_OPTCR_nWRP;
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reg |= (opts->read_protection << 8) & FLASH_OPTCR_RDP;
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reg |= (opts->wdg_sw << 5) & FLASH_OPTCR_WDG_SW;
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while (FLASH->SR & FLASH_SR_BSY);
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FLASH->OPTCR = reg;
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FLASH->OPTCR |= FLASH_OPTCR_OPTSTRT;
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__DSB();
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while (FLASH->SR & FLASH_SR_BSY);
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FLASH->OPTCR |= FLASH_OPTCR_OPTLOCK;
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__DSB();
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return 0;
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}
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