/**
??******************************************************************************
??*?@file????system_stm32f10x.c
??*?@author??MCD?Application?Team
??*?@version?V3.6.1
??*?@date????09-March-2012
??*?@brief???CMSIS?Cortex-M3?Device?Peripheral?Access?layer?System?Source?File.
??*?
??*?1.??This?file?provides?two?functions?and?one?global?variable?to?be?called?from?
??*?????user?application:
??*??????-?SystemInit（）:?Setups?the?system?clock?（System?clock?source?PLL?Multiplier
??*??????????????????????factors?AHB/APBx?prescalers?and?Flash?settings）.?
??*??????????????????????This?function?is?called?at?startup?just?after?reset?and?
??*??????????????????????before?branch?to?main?program.?This?call?is?made?inside
??*??????????????????????the?“startup_stm32f10x_xx.s“?file.
??*
??*??????-?SystemCoreClock?variable:?Contains?the?core?clock?（HCLK）?it?can?be?used
??*??????????????????????????????????by?the?user?application?to?setup?the?SysTick?
??*??????????????????????????????????timer?or?configure?other?parameters.
??*?????????????????????????????????????
??*??????-?SystemCoreClockUpdate（）:?Updates?the?variable?SystemCoreClock?and?must
??*?????????????????????????????????be?called?whenever?the?core?clock?is?changed
??*?????????????????????????????????during?program?execution.
??*
??*?2.?After?each?device?reset?the?HSI?（8?MHz）?is?used?as?system?clock?source.
??*????Then?SystemInit（）?function?is?called?in?“startup_stm32f10x_xx.s“?file?to
??*????configure?the?system?clock?before?to?branch?to?main?program.
??*
??*?3.?If?the?system?clock?source?selected?by?user?fails?to?startup?the?SystemInit（）
??*????function?will?do?nothing?and?HSI?still?used?as?system?clock?source.?User?can?
??*????add?some?code?to?deal?with?this?issue?inside?the?SetSysClock（）?function.
??*
??*?4.?The?default?value?of?HSE?crystal?is?set?to?8?MHz?（or?25?MHz?depedning?on
??*????the?product?used）?refer?to?“HSE_VALUE“?define?in?“stm32f10x.h“?file.?
??*????When?HSE?is?used?as?system?clock?source?directly?or?through?PLL?and?you
??*????are?using?different?crystal?you?have?to?adapt?the?HSE?value?to?your?own
??*????configuration.
??*????????
??******************************************************************************
??*?@attention
??*
??*?
©?COPYRIGHT?2012?STMicroelectronics

??*
??*?Licensed?under?MCD-ST?Liberty?SW?License?Agreement?V2?（the?“License“）;
??*?You?may?not?use?this?file?except?in?compliance?with?the?License.
??*?You?may?obtain?a?copy?of?the?License?at:
??*
??*????????http://www.st.com/software_license_agreement_liberty_v2
??*
??*?Unless?required?by?applicable?law?or?agreed?to?in?writing?software?
??*?distributed?under?the?License?is?distributed?on?an?“AS?IS“?BASIS?
??*?WITHOUT?WARRANTIES?OR?CONDITIONS?OF?ANY?KIND?either?express?or?implied.
??*?See?the?License?for?the?specific?language?governing?permissions?and
??*?limitations?under?the?License.
??*
??*************************************

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-10-08?19:38??Doc\
?????文件????????2678??2016-01-11?15:24??Doc\01.例程功能說明.txt
?????文件?????????646??2015-01-27?21:30??Doc\02.例程修改記錄.txt
?????文件????????7044??2013-06-20?09:34??Doc\03.開發環境說明.txt
?????文件????????7564??2013-06-20?06:09??Doc\04.STM32F407IGT6引腳定義（原始定義）.txt
?????文件????????9924??2013-06-20?08:58??Doc\05.GPIO分配表（按GPIO次序排列）.txt
?????文件???????10725??2013-06-20?22:46??Doc\06.GPIO分配表（按功能排列）.txt
?????文件???????80570??2015-01-28?15:25??Doc\485總線連接.png
?????文件??????195963??2013-07-22?07:14??Doc\接線圖.jpg
?????目錄???????????0??2018-10-08?19:39??Libraries\
?????目錄???????????0??2018-10-08?19:39??Libraries\CMSIS\
?????文件???????46999??2013-01-22?02:27??Libraries\CMSIS\CMSIS?END?USER?LICENCE?AGREEMENT.pdf
?????目錄???????????0??2018-10-08?19:38??Libraries\CMSIS\Device\
?????目錄???????????0??2018-10-08?19:38??Libraries\CMSIS\Device\ST\
?????目錄???????????0??2018-10-08?19:38??Libraries\CMSIS\Device\ST\STM32F10x\
?????目錄???????????0??2018-10-08?19:38??Libraries\CMSIS\Device\ST\STM32F10x\Include\
?????文件??????637870??2013-01-22?02:27??Libraries\CMSIS\Device\ST\STM32F10x\Include\stm32f10x.h
?????文件????????2220??2013-01-22?02:27??Libraries\CMSIS\Device\ST\STM32F10x\Include\system_stm32f10x.h
?????文件???????34595??2013-01-22?02:27??Libraries\CMSIS\Device\ST\STM32F10x\Release_Notes.html
?????目錄???????????0??2018-10-08?19:38??Libraries\CMSIS\Device\ST\STM32F10x\Source\
?????目錄???????????0??2018-10-08?19:38??Libraries\CMSIS\Device\ST\STM32F10x\Source\Templates\
?????目錄???????????0??2018-10-08?19:38??Libraries\CMSIS\Device\ST\STM32F10x\Source\Templates\arm\
?????文件???????15896??2013-01-22?02:27??Libraries\CMSIS\Device\ST\STM32F10x\Source\Templates\arm\startup_stm32f10x_cl.s
?????文件???????15670??2015-08-08?08:27??Libraries\CMSIS\Device\ST\STM32F10x\Source\Templates\arm\startup_stm32f10x_hd.s
?????文件???????15822??2013-01-22?02:27??Libraries\CMSIS\Device\ST\STM32F10x\Source\Templates\arm\startup_stm32f10x_hd_vl.s
?????文件???????12506??2013-01-22?02:27??Libraries\CMSIS\Device\ST\STM32F10x\Source\Templates\arm\startup_stm32f10x_ld.s
?????文件???????13786??2013-01-22?02:27??Libraries\CMSIS\Device\ST\STM32F10x\Source\Templates\arm\startup_stm32f10x_ld_vl.s
?????文件???????12895??2013-01-22?02:27??Libraries\CMSIS\Device\ST\STM32F10x\Source\Templates\arm\startup_stm32f10x_md.s
?????文件???????14203??2013-01-22?02:27??Libraries\CMSIS\Device\ST\STM32F10x\Source\Templates\arm\startup_stm32f10x_md_vl.s
?????文件???????16085??2013-01-22?02:27??Libraries\CMSIS\Device\ST\STM32F10x\Source\Templates\arm\startup_stm32f10x_xl.s
?????目錄???????????0??2018-10-08?19:38??Libraries\CMSIS\Device\ST\STM32F10x\Source\Templates\gcc_ride7\
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