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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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AN2629 Fiches technique(PDF) 40 Page - STMicroelectronics |
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AN2629 Fiches technique(HTML) 40 Page - STMicroelectronics |
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40 / 43 page  Using the Backup domain in very low-power applications AN2629 40/43 Doc ID 13922 Rev 2 8 Using the Backup domain in very low-power applications 8.1 Introduction This section describes how to use the STM32F10xxx backup registers and keep the benefit of the low-power consumption of the Backup domain. 8.2 Using the Backup domain in an applicative way 8.2.1 Context This section describes how to use the STM32F10xxx backup registers, using the same firmware as the one used in Section 6.2 of this application note. It can be found in the Zip file delivered with the application note, in the Run_Mode folder. The Run_Mode folder contains all the subdirectories and files that make up the core of the application example: ● inc subfolder contains the example header files ● src subfolder contains the example source files ● project subfolder contains two projects that compile the example files: – EWARMv5: contains the project for the EWARM toolchain – RVMDK: contains the project for the RVMDK toolchain – RIDE: contains the project for the RIDE toolchain 8.2.2 Detailed description The program is a basic application that sends the time from the RTC on a serial line (USART). Every second, the time is stored into the backup registers. After a power on reset, the contents of the backup registers are sent through the USART. The time at which the power-off event occurred is displayed on the HyperTerminal as shown in Figure 9. Figure 9. HyperTerminal display of time |
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