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1be3e8e550
after first hard reset (power on) if hardware bind plug is not configured. Now completly tested.
70 lines
2 KiB
C
70 lines
2 KiB
C
/*
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* This file is part of Cleanflight.
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*
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* Cleanflight is free software: you can redistribute it and/or modify
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* it under the terms of the GNU 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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* Cleanflight 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 Cleanflight. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include "platform.h"
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#include "gpio.h"
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#include "system.h"
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#define AIRCR_VECTKEY_MASK ((uint32_t)0x05FA0000)
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#define BKP_SOFTRESET (0x50F7B007)
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void systemReset(void)
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{
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// write magic value that we're doing a soft reset
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
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PWR->CR |= PWR_CR_DBP;
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*((uint16_t *)BKP_BASE + 0x04) = BKP_SOFTRESET & 0xffff;
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*((uint16_t *)BKP_BASE + 0x08) = (BKP_SOFTRESET & 0xffff0000) >> 16;
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// Generate system reset
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SCB->AIRCR = AIRCR_VECTKEY_MASK | (uint32_t)0x04;
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}
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void systemResetToBootloader(void) {
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// 1FFFF000 -> 20000200 -> SP
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// 1FFFF004 -> 1FFFF021 -> PC
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*((uint32_t *)0x20004FF0) = 0xDEADBEEF; // 20KB STM32F103
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systemReset();
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}
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void enableGPIOPowerUsageAndNoiseReductions(void)
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{
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC, ENABLE);
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gpio_config_t gpio;
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gpio.mode = Mode_AIN;
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gpio.pin = Pin_All;
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gpioInit(GPIOA, &gpio);
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gpioInit(GPIOB, &gpio);
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gpioInit(GPIOC, &gpio);
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}
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bool isMPUSoftReset(void)
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{
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if ((*((uint16_t *)BKP_BASE + 0x04) | *((uint16_t *)BKP_BASE + 0x08) << 16) == BKP_SOFTRESET)
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return true;
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else
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return false;
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}
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