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diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/BKP/Backup_Data/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/BKP/Backup_Data/readme.txt new file mode 100644 index 0000000..fc4cf9b --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/BKP/Backup_Data/readme.txt @@ -0,0 +1,125 @@ +/** + @page BKP_Backup_Data Backup Data example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file BKP/Backup_Data/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the 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. + ****************************************************************************** + @endverbatim + +@par 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 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 + +@par Directory contents + + - BKP/Backup_Data/stm32f10x_conf.h Library Configuration file + - BKP/Backup_Data/stm32f10x_it.c Interrupt handlers + - BKP/Backup_Data/stm32f10x_it.h Header for stm32f10x_it.c + - BKP/Backup_Data/system_stm32f10x.c STM32F10x system source file + - BKP/Backup_Data/main.c Main program + +@par Hardware and Software environment + + - This example runs on STM32F10x Connectivity line, High-Density, Medium-Density, + XL-Density, High-Density Value line, Medium-Density Value line, Low-Density + and Low-Density Value line Devices. + + - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density + Value line), STM32100B-EVAL (Medium-Density Value line), STM3210C-EVAL + (Connectivity line), STM3210E-EVAL (High-Density and XL-Density) and + STM3210B-EVAL (Medium-Density) evaluation boards and can be easily tailored + to any other supported device and development board. + To select the STMicroelectronics evaluation board used to run the example, + uncomment the corresponding line in stm32_eval.h file (under Utilities\STM32_EVAL) + + - STM32100B-EVAL Set-up + - 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 JP9 in position 1-2) + + - STM3210C-EVAL Set-up + - Use LD1, LD2, LD3 and LD4 leds connected respectively to PD.07, PD.13, PF.03 + and PD.04 pins + - Use 3V battery on VBAT pin (set jumper JP24 in position 1-2) + + - STM3210E-EVAL Set-up + - 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) + + - STM3210B-EVAL Set-up + - 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) + + - STM32100E-EVAL Set-up + - 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) + +@par How to use it ? + +In order to make the program work, you must do the following : + - Copy all source files from this example folder to the template folder under + Project\STM32F10x_StdPeriph_Template + - Open your preferred toolchain + - Rebuild all files and load your image into target memory + - Run the example + - Power on/off the board and check that the BKP contents are not lost + +@note + - Low-density Value line devices are STM32F100xx microcontrollers where the + Flash memory density ranges between 16 and 32 Kbytes. + - Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes. + - Medium-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 64 and 128 Kbytes. + - Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx + microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes. + - High-density Value line devices are STM32F100xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - High-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 256 and 512 Kbytes. + - XL-density devices are STM32F101xx and STM32F103xx microcontrollers where + the Flash memory density ranges between 512 and 1024 Kbytes. + - Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers. + + * <h3><center>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ |