智能手环计步+温湿度+RTC实时时间+心率+血压

实现基于STM32F411的智能手环完整代码，UCOSS多任务编程，拥有（计步+温湿度+RTC实时时间+心率+血压）等功能

/**
  ******************************************************************************
  * @file    system_stm32f4xx.c
  * @author  MCD Application Team
  * @version V1.4.0
  * @date    04-August-2014
  * @brief   CMSIS Cortex-M4 Device Peripheral Access layer System Source File.
  *          This file contains the system clock configuration for STM32F4xx devices.
  *             
  * 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 STM32F40xxx/41xxx devices
  *-----------------------------------------------------------------------------
  *        System Clock source                    | PLL （HSE）
  *-----------------------------------------------------------------------------
  *        SYSCLK（Hz）                             | 168000000
  *-----------------------------------------------------------------------------
  *        HCLK（Hz）                       

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件      24423  2016-11-09 15:16  Project_Hand_Ring+完整版\CMSIS\cmsis_armcc.h

     文件     114498  2016-11-09 15:16  Project_Hand_Ring+完整版\CMSIS\core_cm4.h

     文件       3620  2016-11-09 15:16  Project_Hand_Ring+完整版\CMSIS\core_cmFunc.h

     文件       3636  2016-11-09 15:16  Project_Hand_Ring+完整版\CMSIS\core_cmInstr.h

     文件       3662  2016-11-09 15:16  Project_Hand_Ring+完整版\CMSIS\core_cmSimd.h

     文件       4676  2014-07-17 21:52  Project_Hand_Ring+完整版\CMSIS\Include\arm_common_tables.h

     文件       3666  2014-07-17 21:52  Project_Hand_Ring+完整版\CMSIS\Include\arm_const_structs.h

     文件     242444  2014-07-17 21:52  Project_Hand_Ring+完整版\CMSIS\Include\arm_math.h

     文件      24423  2016-11-09 15:16  Project_Hand_Ring+完整版\CMSIS\Include\cmsis_armcc.h

     文件      33042  2014-07-17 21:52  Project_Hand_Ring+完整版\CMSIS\Include\core_cm0.h

     文件      40429  2014-07-17 21:52  Project_Hand_Ring+完整版\CMSIS\Include\core_cm0plus.h

     文件      99832  2014-07-17 21:52  Project_Hand_Ring+完整版\CMSIS\Include\core_cm3.h

     文件     109142  2014-07-17 21:52  Project_Hand_Ring+完整版\CMSIS\Include\core_cm4.h

     文件      22735  2014-07-17 21:52  Project_Hand_Ring+完整版\CMSIS\Include\core_cm4_simd.h

     文件      17146  2014-07-17 21:52  Project_Hand_Ring+完整版\CMSIS\Include\core_cmFunc.h

     文件      20513  2014-07-17 21:52  Project_Hand_Ring+完整版\CMSIS\Include\core_cmInstr.h

     文件       3662  2016-11-09 15:16  Project_Hand_Ring+完整版\CMSIS\Include\core_cmSimd.h

     文件      41744  2014-07-17 21:52  Project_Hand_Ring+完整版\CMSIS\Include\core_sc000.h

     文件      98211  2014-07-17 21:52  Project_Hand_Ring+完整版\CMSIS\Include\core_sc300.h

     文件      29605  2014-08-02 00:12  Project_Hand_Ring+完整版\CMSIS\Include\startup_stm32f40_41xxx.s

     文件     704091  2018-05-11 19:58  Project_Hand_Ring+完整版\CMSIS\Include\stm32f4xx.h

     文件      47782  2014-08-02 00:06  Project_Hand_Ring+完整版\CMSIS\Include\system_stm32f4xx.c

     文件       2233  2014-08-01 22:30  Project_Hand_Ring+完整版\CMSIS\Include\system_stm32f4xx.h

     文件      29605  2014-08-02 00:12  Project_Hand_Ring+完整版\CMSIS\startup_stm32f40_41xxx.s

     文件      26517  2014-08-02 00:10  Project_Hand_Ring+完整版\CMSIS\startup_stm32f411xe.s

     文件     704095  2014-08-01 22:30  Project_Hand_Ring+完整版\CMSIS\stm32f4xx.h

     文件       4593  2014-08-01 23:35  Project_Hand_Ring+完整版\CMSIS\stm32f4xx_conf.h

     文件      47782  2014-08-02 00:06  Project_Hand_Ring+完整版\CMSIS\system_stm32f4xx.c

     文件       2233  2014-08-01 22:30  Project_Hand_Ring+完整版\CMSIS\system_stm32f4xx.h

     文件       1527  2015-10-27 12:06  Project_Hand_Ring+完整版\DebugConfig\Hand_Ring_STM32F411CEUx.dbgconf

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