/** ****************************************************************************** * @addtogroup OpenPilotBL OpenPilot BootLoader * @brief These files contain the code to the OpenPilot MB Bootloader. * * @{ * @file main.c * @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010. * @brief This is the file with the main function of the OpenPilot BootLoader * @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 */ /* Bootloader Includes */ #include #include #define MAX_WRI_RETRYS 3 /* Prototype of PIOS_Board_Init() function */ extern void PIOS_Board_Init(void); extern void FLASH_Download(); void error(); int main() { PIOS_SYS_Init(); PIOS_Board_Init(); PIOS_LED_On(LED1); PIOS_DELAY_WaitmS(5000); PIOS_LED_Off(LED1); /// Self overwrite check uint32_t base_adress = SCB->VTOR; if (0x08000000 + (sizeof(dataArray) * 4) > base_adress) error(); /// /// Bootloader memory space erase uint32_t pageAdress; pageAdress = 0x08000000; uint8_t fail = FALSE; while ((pageAdress < base_adress) || (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 defined (STM32F10X_MD) pageAdress += 1024; #endif } if (fail == TRUE) error(); /// /// Bootloader programing for (int x = 0; x < sizeof(dataArray); ++x) { int result = 0; for (int retry = 0; retry < MAX_WRI_RETRYS; ++retry) { if (result == 0) { result = (FLASH_ProgramWord(0x08000000 + (x * 4), dataArray[x]) == FLASH_COMPLETE) ? 1 : 0; } } if (result == 0) error(); } /// PIOS_LED_On(LED1); for (;;) {} } void error() { for (;;) { PIOS_LED_On(LED1); PIOS_DELAY_WaitmS(500); PIOS_LED_Off(LED1); PIOS_DELAY_WaitmS(500); } }