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LibrePilot/flight/CopterControl/System/coptercontrol.c

121 lines
3.8 KiB
C

/**
******************************************************************************
* @addtogroup OpenPilotSystem OpenPilot System
* @brief These files are the core system files of OpenPilot.
* They are the ground layer just above PiOS. In practice, OpenPilot actually starts
* in the main() function of openpilot.c
* @{
* @addtogroup OpenPilotCore OpenPilot Core
* @brief This is where the OP firmware starts. Those files also define the compile-time
* options of the firmware.
* @{
* @file openpilot.c
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
* @brief Sets up and runs main OpenPilot tasks.
* @see The GNU Public License (GPL) Version 3
*
*****************************************************************************/
/*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* OpenPilot Includes */
#include "openpilot.h"
#include "uavobjectsinit.h"
#include "hwsettings.h"
#include "systemmod.h"
/* Task Priorities */
#define PRIORITY_TASK_HOOKS (tskIDLE_PRIORITY + 3)
/* Global Variables */
/* Prototype of PIOS_Board_Init() function */
extern void PIOS_Board_Init(void);
extern void Stack_Change(void);
/**
* OpenPilot Main function:
*
* Initialize PiOS<BR>
* Create the "System" task (SystemModInitializein Modules/System/systemmod.c) <BR>
* Start FreeRTOS Scheduler (vTaskStartScheduler) (Now handled by caller)
* If something goes wrong, blink LED1 and LED2 every 100ms
*
*/
int main()
{
/* NOTE: Do NOT modify the following start-up sequence */
/* Any new initialization functions should be added in OpenPilotInit() */
/* Brings up System using CMSIS functions, enables the LEDs. */
PIOS_SYS_Init();
/* Architecture dependant Hardware and
* core subsystem initialisation
* (see pios_board.c for your arch)
* */
PIOS_Board_Init();
PIOS_WDG_Clear();
#ifdef ERASE_FLASH
PIOS_Flash_Jedec_EraseChip();
#if defined(PIOS_LED_HEARTBEAT)
PIOS_LED_Off(PIOS_LED_HEARTBEAT);
#endif /* PIOS_LED_HEARTBEAT */
while (1) ;
#endif
/* Initialize modules */
MODULE_INITIALISE_ALL
/* swap the stack to use the IRQ stack */
Stack_Change();
/* Start the FreeRTOS scheduler, which should never return.
*
* NOTE: OpenPilot runs an operating system (FreeRTOS), which constantly calls
* (schedules) function files (modules). These functions never return from their
* while loops, which explains why each module has a while(1){} segment. Thus,
* the OpenPilot software actually starts at the vTaskStartScheduler() function,
* even though this is somewhat obscure.
*
* In addition, there are many main() functions in the OpenPilot firmware source tree
* This is because each main() refers to a separate hardware platform. Of course,
* C only allows one main(), so only the relevant main() function is compiled when
* making a specific firmware.
*
*/
vTaskStartScheduler();
/* If all is well we will never reach here as the scheduler will now be running. */
/* Do some indication to user that something bad just happened */
while (1) {
#if defined(PIOS_LED_HEARTBEAT)
PIOS_LED_Toggle(PIOS_LED_HEARTBEAT);
#endif /* PIOS_LED_HEARTBEAT */
PIOS_DELAY_WaitmS(100);
}
return 0;
}
/**
* @}
* @}
*/