资源简介
发一个在stm32f4 discovery上调试通过的uCosII V2.91。 采用ST官方3.5库
工程文件是在ST官方提供的stm32f4-discovery_demo上修改的,工程文件在stm32f4 uCos IAR\Project\My_uCos\EWARM中
在系统中创建了4个Task,分别控制stm32f4 discovery的4个led闪烁

代码片段和文件信息
/**
******************************************************************************
* @file system_stm32f4xx.c
* @author MCD Application Team
* @version V1.0.0
* @date 30-September-2011
* @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_V1.0.0.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
*-
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
目录 0 2012-11-11 00:55 stm32f4 uCos IAR\
目录 0 2012-11-11 00:55 stm32f4 uCos IAR\Libraries\
目录 0 2012-11-11 00:57 stm32f4 uCos IAR\Libraries\CMSIS\
目录 0 2012-11-11 00:54 stm32f4 uCos IAR\Libraries\CMSIS\Include\
文件 1120 2011-10-28 10:31 stm32f4 uCos IAR\Libraries\CMSIS\Include\arm_common_tables.h
文件 240326 2011-10-28 10:31 stm32f4 uCos IAR\Libraries\CMSIS\Include\arm_math.h
文件 31948 2011-10-28 10:31 stm32f4 uCos IAR\Libraries\CMSIS\Include\core_cm0.h
文件 69722 2011-10-28 10:31 stm32f4 uCos IAR\Libraries\CMSIS\Include\core_cm3.h
文件 79281 2011-10-28 10:31 stm32f4 uCos IAR\Libraries\CMSIS\Include\core_cm4.h
文件 23979 2011-10-28 10:31 stm32f4 uCos IAR\Libraries\CMSIS\Include\core_cm4_simd.h
文件 15691 2011-10-28 10:31 stm32f4 uCos IAR\Libraries\CMSIS\Include\core_cmFunc.h
文件 16108 2011-10-28 10:31 stm32f4 uCos IAR\Libraries\CMSIS\Include\core_cmInstr.h
文件 1370 2011-07-26 10:34 stm32f4 uCos IAR\Libraries\CMSIS\README.txt
目录 0 2012-11-11 00:54 stm32f4 uCos IAR\Libraries\CMSIS\ST\
目录 0 2012-11-11 00:54 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\
目录 0 2012-11-11 00:54 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\Include\
文件 530693 2011-10-28 10:31 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\Include\stm32f4xx.h
文件 2096 2011-10-28 10:31 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\Include\system_stm32f4xx.h
文件 17824 2011-10-28 10:31 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\Release_Notes.html
目录 0 2012-11-11 00:54 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\Source\
目录 0 2012-11-11 00:54 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\
目录 0 2012-11-11 00:54 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\arm\
文件 29511 2011-10-28 10:31 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\arm\startup_stm32f4xx.s
目录 0 2012-11-11 00:54 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\gcc_ride7\
文件 23970 2011-10-28 10:31 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\gcc_ride7\startup_stm32f4xx.s
目录 0 2012-11-11 00:54 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\iar\
文件 24546 2011-10-28 10:31 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\iar\startup_stm32f4xx.s
文件 21726 2011-10-28 10:31 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\system_stm32f4xx.c
目录 0 2012-11-11 00:54 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\TASKING\
文件 3672 2011-10-28 10:31 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\TASKING\cstart_thumb2.asm
目录 0 2012-11-11 00:54 stm32f4 uCos IAR\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\TrueSTUDIO\
............此处省略176个文件信息
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