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

04 UART2Printf
..............\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
..............\........

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