drv_system.h

/*
   drv_sytem.h : system utilities (init, reset, delay, etc.)  for STM32F103CB

   Adapted from https://github.com/multiwii/baseflight/blob/master/src/drv_system.h

   This file is part of BreezySTM32.

   BreezySTM32 is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   BreezySTM32 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 BreezySTM32.  If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#define BKP_SOFTRESET (0x50F7B007)

//#define GYRO
//#define ACC
//#define BUZZER
#define LED0
#define LED1
#define INVERTER

#define LED0_GPIO   GPIOB
#define LED0_PIN    Pin_3 // PB3 (LED)
#define LED1_GPIO   GPIOB
#define LED1_PIN    Pin_4 // PB4 (LED)
#define INV_PIN     Pin_2 // PB2 (BOOT1) abused as inverter select GPIO
#define INV_GPIO    GPIOB

#ifdef LED0
#define LED0_TOGGLE              digitalToggle(LED0_GPIO, LED0_PIN);
#define LED0_OFF                 digitalHi(LED0_GPIO, LED0_PIN);
#define LED0_ON                  digitalLo(LED0_GPIO, LED0_PIN);
#else
#define LED0_TOGGLE
#define LED0_OFF
#define LED0_ON
#endif

#ifdef LED1
#define LED1_TOGGLE              digitalToggle(LED1_GPIO, LED1_PIN);
#define LED1_OFF                 digitalHi(LED1_GPIO, LED1_PIN);
#define LED1_ON                  digitalLo(LED1_GPIO, LED1_PIN);
#else
#define LED1_TOGGLE
#define LED1_OFF
#define LED1_ON
#endif

#ifdef INV_GPIO
#define INV_OFF                  digitalLo(INV_GPIO, INV_PIN);
#define INV_ON                   digitalHi(INV_GPIO, INV_PIN);
#else
#define INV_OFF                 ;
#define INV_ON                  ;
#endif

void systemInit(void);
void delayMicroseconds(uint32_t us);
void delay(uint32_t ms);

uint64_t micros(void);
uint32_t millis(void);

// Backup SRAM R/W
uint32_t rccReadBkpDr(void);
void rccWriteBkpDr(uint32_t value);

// failure
void failureMode();

// bootloader/IAP
void systemReset(bool toBootloader);