Shenzhou 4 STM32F107V development board of the source. Serial input and output of the source. Hope useful to you.

05 UART2inout
.............\Libraries
.............\.........\CMSIS
.............\.........\.....\CM3
.............\.........\.....\...\CoreSupport
.............\.........\.....\...\...........\core_cm3.c
.............\.........\.....\...\...........\core_cm3.h
.............\.........\.....\...\DeviceSupport
.............\.........\.....\...\.............\ST
.............\.........\.....\...\.............\..\Release_Notes_for_STM32F10x_CMSIS.html
.............\.........\.....\...\.............\..\STM32F10x
.............\.........\.....\...\.............\..\.........\startup
.............\.........\.....\...\.............\..\.........\.......\arm
.............\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_cl.s
.............\.........\.....\...\.............\..\.........\.......\...\startup_stm32f10x_hd.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_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_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_ld.s
.............\.........\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_ld_vl.s
.............\.........\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_md.s
.............\.........\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_md_vl.s
.............\.........\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_xl.s
.............\.........\.....\...\.............\..\.........\stm32f10x.h
.............\.........\.....\...\.............\..\.........\system_stm32f10x.c
.............\.........\.....\...\.............\..\.........\system_stm32f10x.h
.............\.........\.....\CMSIS debug support.htm
.............\.........\.....\CMSIS_changes.htm
.............\.........\.....\Documentation
.............\.........\....

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