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-/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
-* File Name : readme.txt
-* Author : MCD Application Team
-* Version : V2.0.1
-* Date : 06/13/2008
-* Description : Description of the BKP Backup_Data Example.
-********************************************************************************
-* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
-* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
-* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
-* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
-* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
-* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
-*******************************************************************************/
-
-Example description
-===================
-This example shows how to store user data in the Backup data registers.
-As the Backup (BKP) domain still powered by VBAT when VDD is switched off, its
-contents are not lost if a battery is connected to VBAT pin.
-
-The program behaves as follows:
-1. After startup the program checks if the board has been powered up. If yes,
-the values in the BKP data registers are checked:
- – if a battery is connected to the VBAT pin, the values in the BKP data registers
- are retained
- – if no battery is connected to the VBAT pin, the values in the BKP data registers
- are lost
-2. After an external reset, the BKP data registers’ contents are not checked.
-
-Four LEDs connected to the GPIO_LED Pin6 (LD1), Pin7 (LD2), Pin8 (LD3) and Pin9 (LD4)
-are used to monitor the system state as follows:
-1. LD3 on / LD1 on: a Power On Reset occurred and the values in the BKP data
- registers are correct
-2. LD3 on / LD2 on: a Power On Reset occurred and the values in the BKP data
- registers are not correct or they have not yet been programmed (if it is the
- first time the program is executed)
-3. LD3 off / LD1 off / LD2 off: no Power On Reset occurred
-4. LD4 on: program running
-
-
-Directory contents
-==================
-platform_config.h Evaluation board specific configuration file
-stm32f10x_conf.h Library Configuration file
-stm32f10x_it.c Interrupt handlers
-stm32f10x_it.h Header for stm32f10x_it.c
-main.c Main program
-main.h Header for main.c
-
-
-Hardware environment
-====================
-This example runs on STMicroelectronics STM3210B-EVAL and STM3210E-EVAL evaluation
-boards and can be easily tailored to any other hardware.
-To select the STMicroelectronics evaluation board used to run the example, uncomment
-the corresponding line in platform_config.h file.
-
- + STM3210B-EVAL
- - Use LD1, LD2, LD3 and LD4 leds connected respectively to PC.06, PC.07, PC.08
- and PC.09 pins
- - Use 3V battery on VBAT pin (set jumper JP11 in position 1-2)
-
- + STM3210E-EVAL
- - Use LD1, LD2, LD3 and LD4 leds connected respectively to PF.06, PF0.7, PF.08
- and PF.09 pins
- - Use 3V battery on VBAT pin (set jumper JP1 in position 1-2)
-
-
-How to use it
-=============
-In order to make the program work, you must do the following :
-- Create a project and setup all your toolchain's start-up files
-- Compile the directory content files and required Library files :
- + stm32f10x_lib.c
- + stm32f10x_pwr.c
- + stm32f10x_bkp.c
- + stm32f10x_gpio.c
- + stm32f10x_rcc.c
- + stm32f10x_nvic.c
- + stm32f10x_flash.c
-
-- Link all compiled files and load your image into target memory
-- Run the example in standalone mode (without debugger connection)
-- Power on/off the board and check that the BKP contents are not lost
-
-******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE******