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STM32 做的modbus_rtu程序,使用KEIL編寫,沒有移植FREEMODBUS,適合搞MODBUS協議開發的朋友

代碼片段和文件信息
/**
??******************************************************************************
??*?@file????system_stm32f10x.c
??*?@author??MCD?Application?Team
??*?@version?V3.5.0
??*?@date????11-March-2011
??*?@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
??*
??*?THE?PRESENT?FIRMWARE?WHICH?IS?FOR?GUIDANCE?ONLY?AIMS?AT?PROVIDING?CUSTOMERS
??*?WITH?CODING?INFORMATION?REGARDING?THEIR?PRODUCTS?IN?ORDER?FOR?THEM?TO?SAVE
??*?TIME.?AS?A?RESULT?STMICROELECTRONICS?SHALL?NOT?BE?HELD?LIABLE?FOR?ANY
??*?DIRECT?INDIRECT?OR?CONSEQUENTIAL?DAMAGES?WITH?RESPECT?TO?ANY?CLAIMS?ARISING
??*?FROM?THE?CONTENT?OF?SUCH?FIRMWARE?AND/OR?THE?USE?MADE?BY?CUSTOMERS?OF?THE
??*?CODING?INFORMATION?CONTAINED?HEREIN?IN?CONNECTION?WITH?THEIR?PRODUCTS.
??*
??*?©?COPYRIGHT?2011?STMicroelectronics
??******************************************************************************
??*/
/**?@addtogroup?CMSIS
??*?@{
??*/
/**?@addtogroup?stm32f10x_system
??*?@{
??*
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件??????73863??2014-06-06?16:02??Modbus_6.6\D_EXAMPLE.map
?????文件????????458??2013-05-17?17:11??Modbus_6.6\D_EXAMPLE.plg
????.......????136350??2014-04-28?10:46??Modbus_6.6\D_EXAMPLE.uvgui.Admin
????.......????137259??2014-06-06?16:02??Modbus_6.6\D_EXAMPLE.uvgui.Administrator
????.......????136351??2014-04-28?10:43??Modbus_6.6\D_EXAMPLE.uvgui_Admin.bak
????.......????136527??2014-06-06?15:54??Modbus_6.6\D_EXAMPLE.uvgui_Administrator.bak
????.......?????14023??2014-06-06?16:02??Modbus_6.6\D_EXAMPLE.uvopt
????.......?????17015??2014-06-06?15:54??Modbus_6.6\D_EXAMPLE.uvproj
?????文件??????19816??2014-06-06?16:02??Modbus_6.6\D_EXAMPLE_Moban.dep
?????文件?????????76??2013-05-17?17:07??Modbus_6.6\D_EXAMPLE_Target?1.dep
????.......?????14023??2014-06-06?15:54??Modbus_6.6\D_EXAMPLE_uvopt.bak
????.......?????16916??2014-06-06?15:53??Modbus_6.6\D_EXAMPLE_uvproj.bak
?????文件???????6905??2014-04-28?10:35??Modbus_6.6\History\sch.~(1).SchDoc.Zip
?????文件???47780351??2014-06-06?11:58??Modbus_6.6\Jli
?????文件????????573??2013-09-17?08:59??Modbus_6.6\Jli
?????文件?????354450??2014-06-06?15:54??Modbus_6.6\OUTPUT\config.crf
?????文件???????1730??2014-06-06?15:54??Modbus_6.6\OUTPUT\config.d
?????文件?????389008??2014-06-06?15:54??Modbus_6.6\OUTPUT\config.o
?????文件????????347??2014-06-06?15:54??Modbus_6.6\OUTPUT\config.__i
?????文件???????3547??2014-06-06?15:53??Modbus_6.6\OUTPUT\core_cm3.crf
?????文件????????111??2014-06-06?15:53??Modbus_6.6\OUTPUT\core_cm3.d
?????文件??????10328??2014-06-06?15:53??Modbus_6.6\OUTPUT\core_cm3.o
?????文件????????376??2014-06-06?15:53??Modbus_6.6\OUTPUT\core_cm3.__i
?????文件?????340084??2014-06-06?16:02??Modbus_6.6\OUTPUT\D_EXAMPLE.axf
?????文件??????61496??2014-06-06?16:02??Modbus_6.6\OUTPUT\D_EXAMPLE.htm
?????文件????????546??2014-06-06?16:02??Modbus_6.6\OUTPUT\D_EXAMPLE.lnp
?????文件???????1044??2014-06-06?16:02??Modbus_6.6\OUTPUT\D_EXAMPLE.plg
?????文件????????479??2014-04-14?12:27??Modbus_6.6\OUTPUT\D_EXAMPLE.sct
?????文件???????1834??2014-06-06?16:02??Modbus_6.6\OUTPUT\D_EXAMPLE.tra
????.......???????479??2013-09-22?15:45??Modbus_6.6\OUTPUT\D_EXAMPLE_sct.Bak
............此處省略161個文件信息
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