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資源簡介

這是公司實際項目工程（編譯器用DK5）,STM32F4x7+freertos+lwip+ssl+MQTT，其中MQTT自己花了一個禮拜移植，可以同時發布消息和訂閱消息（發布主題：DongLuTest，訂閱主題：mymqttsubtest），經過長期測試MQTT運行穩定。此外還移植了pollarSSL(TSL,AES,DES,RAS等等算法都經過項目測試，沒有問題)，另外LWIP網絡部分也運行穩定，支持隨時插拔網線，最后公司所有運行信息可用printf從串口1輸出（測試MQTT就可以打開串口，收到的訂閱消息在串口打印出來）。公司產品用的是STM32F407，LAN芯片為8720A,cpu外接8M晶振，所有下載到你的開發板上時候注意修改晶振。

資源截圖

代碼片段和文件信息 

/**
??******************************************************************************
??*?@file????system_stm32f4xx.c
??*?@author??MCD?Application?Team
??*?@version?V1.0.2
??*?@date????05-March-2012
??*?@brief???CMSIS?Cortex-M4?Device?Peripheral?Access?layer?System?Source?File.
??*??????????This?file?contains?the?system?clock?configuration?for?STM32F4xx?devices
??*??????????and?is?generated?by?the?clock?configuration?tool
??*??????????stm32f4xx_Clock_Configuration_V1.0.1.xls
??*?????????????
??*?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
??*??????????????????????and?Divider?factors?AHB/APBx?prescalers?and?Flash?settings）
??*??????????????????????depending?on?the?configuration?made?in?the?clock?xls?tool.?
??*??????????????????????This?function?is?called?at?startup?just?after?reset?and?
??*??????????????????????before?branch?to?main?program.?This?call?is?made?inside
??*??????????????????????the?“startup_stm32f4xx.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?（16?MHz）?is?used?as?system?clock?source.
??*????Then?SystemInit（）?function?is?called?in?“startup_stm32f4xx.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?25MHz?refer?to?“HSE_VALUE“?define
??*????in?“stm32f4xx.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.
??*
??*?5.?This?file?configures?the?system?clock?as?follows:
??*=============================================================================
??*=============================================================================
??*????????Supported?STM32F4xx?device?revision????|?Rev?A
??*-----------------------------------------------------------------------------
??*????????System?Clock?source????????????????????|?PLL?（HSE）
??*-----------------------------------------------------------------------------
??*????????SYSCLK（Hz）?????????????????????????????|?168000000
??*-----

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????51511??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\CMSIS?END?USER?LICENCE?AGREEMENT.pdf

?????文件?????544860??2017-11-29?13:23??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Device\ST\STM32F4xx\Include\stm32f4xx.h

?????文件???????2234??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Device\ST\STM32F4xx\Include\system_stm32f4xx.h

?????文件??????24989??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Device\ST\STM32F4xx\Release_Notes.html

?????文件??????29637??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\arm\startup_stm32f4xx.s

?????文件??????24087??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\gcc_ride7\startup_stm32f4xx.s

?????文件??????24692??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\iar\startup_stm32f40xx.s

?????文件??????25690??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\iar\startup_stm32f427x.s

?????文件??????24679??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\iar\startup_stm32f4xx.s

?????文件??????21856??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\system_stm32f4xx.c

?????文件???????3672??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\TASKING\cstart_thumb2.asm

?????文件??????24157??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\TrueSTUDIO\startup_stm32f4xx.s

?????文件???????8469??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\annotated.html

?????文件????????702??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\bc_s.png

?????文件????????922??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\check.png

?????文件??????10378??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\classes.html

?????文件????????126??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\closed.png

?????文件??????13737??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\cmsis.css

?????文件??????20924??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\CMSIS_CORE_Files.png

?????文件??????10053??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\CMSIS_CORE_Files_user.png

?????文件??????12402??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\CMSIS_Logo_Final.png

?????文件??????33903??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\device_h_pg.html

?????文件???????4008??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\doxygen.png

?????文件?????????82??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\ftv2blank.png

?????文件????????766??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\ftv2doc.png

?????文件????????567??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\ftv2folderclosed.png

?????文件????????599??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\ftv2folderopen.png

?????文件?????????82??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\ftv2lastnode.png

?????文件????????766??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\ftv2link.png

?????文件????????219??2013-07-31?16:49??STM32F4x7_ETH_LwIP_V1.1.1\Libraries\CMSIS\Documentation\Core\html\ftv2mlastnode.png

............此處省略1560個文件信息

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