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LibrePilot/flight/PiOS/Common/pios_bl_helper.c

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/**
******************************************************************************
* @addtogroup PIOS PIOS Core hardware abstraction layer
* @{
* @addtogroup PIOS_BOOTLOADER Functions
* @brief HAL code to interface to the OpenPilot AHRS module
* @{
*
* @file pios_bl_helper.c
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
* @brief Bootloader Helper Functions
* @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
*/
/* Project Includes */
#include "pios.h"
#if defined(PIOS_INCLUDE_BL_HELPER)
#include "stm32f10x_flash.h"
uint8_t *FLASH_If_Read(uint32_t SectorAddress) {
return (uint8_t*) (SectorAddress);
}
uint8_t FLASH_Ini() {
FLASH_Unlock();
return 1;
}
uint8_t FLASH_Start() {
uint32_t pageAdress;
pageAdress = START_OF_USER_CODE;
uint8_t fail = FALSE;
while ((pageAdress < START_OF_USER_CODE + SIZE_OF_CODE + SIZE_OF_DESCRIPTION)
|| (fail == TRUE)) {
for (int retry = 0; retry < MAX_DEL_RETRYS; ++retry) {
if (FLASH_ErasePage(pageAdress) == FLASH_COMPLETE) {
fail = FALSE;
break;
} else {
fail = TRUE;
}
}
#ifdef STM32F10X_HD
pageAdress += 2048;
#elif STM32F10X_MD
pageAdress += 1024;
#endif
}
return (fail == TRUE) ? 0 : 1;
}
uint32_t crc_memory_calc()
{
CRC_ResetDR();
CRC_CalcBlockCRC((uint32_t *) START_OF_USER_CODE, (SIZE_OF_CODE) >> 2);
return CRC_GetCRC();
}
void read_description(uint8_t * array)
{
uint8_t x=0;
for(uint32_t i=START_OF_USER_CODE+SIZE_OF_CODE;i<START_OF_USER_CODE+SIZE_OF_CODE+SIZE_OF_DESCRIPTION;++i)
{
array[x]=*FLASH_If_Read(i);
++x;
}
}
void CRC_Ini()
{
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_CRC, ENABLE);
}
#endif