STM32103RC development board based on the real-time clock experiments, when the minutes and seconds can save date, external battery power supply, ensure that data is not lost in power-down under

RTC_USART\Libraries
.........\.........\CMSIS
.........\.........\.....\CM3
.........\.........\.....\...\CoreSupport
.........\.........\.....\...\...........\core_cm3.c
.........\.........\.....\...\...........\core_cm3.h
.........\.........\.....\...\DeviceSupport
.........\.........\.....\...\.............\ST
.........\.........\.....\...\.............\..\STM32F10x
.........\.........\.....\...\.............\..\.........\startup
.........\.........\.....\...\.............\..\.........\.......\arm
.........\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_cl.s
.........\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_hd.s
.........\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_hd_vl.s
.........\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_ld.s
.........\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_ld_vl.s
.........\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_md.s
.........\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_md_vl.s
.........\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_xl.s
.........\.........\.....\...\.............\..\.........\.......\gcc_ride7
.........\.........\.....\...\.............\..\.........\.......\.........\startup_stm32f10x_cl.s
.........\.........\.....\...\.............\..\.........\.......\.........\startup_stm32f10x_hd.s
.........\.........\.....\...\.............\..\.........\.......\.........\startup_stm32f10x_hd_vl.s
.........\.........\.....\...\.............\..\.........\.......\.........\startup_stm32f10x_ld.s
.........\.........\.....\...\.............\..\.........\.......\.........\startup_stm32f10x_ld_vl.s
.........\.........\.....\...\.............\..\.........\.......\.........\startup_stm32f10x_md.s
.........\.........\.....\...\.............\..\.........\.......\.........\startup_stm32f10x_md_vl.s
.........\.........\.....\...\.............\..\.........\.......\.........\startup_stm32f10x_xl.s
.........\.........\.....\...\.............\..\.........\.......\iar
.........\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_cl.s
.........\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_hd.s
.........\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_hd_vl.s
.........\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_ld.s
.........\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_ld_vl.s
.........\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_md.s
.........\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_md_vl.s
.........\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_xl.s
.........\.........\.....\...\.............\..\.........\.......\TrueSTUDIO
.........\.........\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_cl.s
.........\.........\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_hd.s
.........\.........\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_hd_vl.s
.........\.........\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_ld.s
.........\.........\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_ld_vl.s
.........\.........\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_md.s
.........\.........\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_md_vl.s
.........\.........\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_xl.s
.........\.........\.....\...\.............\..\.........\stm32f10x.h
.........\.........\.....\...\.............\..\.........\system_stm32f10x.h
.........\.........\STM32F10x_StdPeriph_Driver
.........\.........\..........................\inc
.........\.........\...................

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