STM32F042 带定时器中断 can ADC

/**
  ******************************************************************************
  * @file    system_stm32f0xx.c
  * @author  MCD Application Team
  * @version V1.3.1
  * @date    17-January-2014
  * @brief   CMSIS Cortex-M0 Device Peripheral Access layer System Source File.
  *          This file contains the system clock configuration for STM32F0xx devices
  *          and is generated by the clock configuration tool  
  *          STM32F0xx_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_stm32f0xx.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 Range） is used as system clock source.
  *    Then SystemInit（） function is called in “startup_stm32f0xx.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 8MHz refer to “HSE_VALUE“ define
  *    in “stm32f0xx.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:
  *=============================================================================
  *                         System Clock Configuration
  *=============================================================================
  *        System Clock source          | PLL（HSE）
  *-----------------------------------------------------------------------------
  *        SYSCLK                       | 48000000 Hz
  *-----------------------------------------------------------------------------
  *        HCLK                         | 48000000 Hz
  *---------------

 属性            大小     日期    时间   名称
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     目录           0  2018-09-13 13:36  Libraries
     目录           0  2018-09-13 13:36  LibrariesCMSIS
     目录           0  2018-09-13 13:36  LibrariesCMSISinclude
     文件      240326  2014-12-13 22:42  LibrariesCMSISincludearm_math.h
     文件       31948  2014-12-13 22:42  LibrariesCMSISincludecore_cm0.h
     文件       15691  2014-12-13 22:42  LibrariesCMSISincludecore_cmFunc.h
     文件       16108  2014-12-13 22:42  LibrariesCMSISincludecore_cmInstr.h
     文件      410939  2014-12-22 22:48  LibrariesCMSISincludestm32f0xx.h
     文件        2222  2014-12-13 22:42  LibrariesCMSISincludesystem_stm32f0xx.h
     目录           0  2018-09-13 13:36  LibrariesCMSISsource
     目录           0  2018-09-13 13:36  LibrariesCMSISsourcestartup
     目录           0  2018-09-13 13:36  LibrariesCMSISsourcestartuparm
     文件       10068  2014-12-13 22:42  LibrariesCMSISsourcestartuparmstartup_stm32f030.s
     文件        9866  2014-12-13 22:42  LibrariesCMSISsourcestartuparmstartup_stm32f031.s
     文件       10703  2014-12-13 22:42  LibrariesCMSISsourcestartuparmstartup_stm32f042.s
     文件       10703  2014-12-13 22:42  LibrariesCMSISsourcestartuparmstartup_stm32f051.s
     文件       11163  2014-12-13 22:42  LibrariesCMSISsourcestartuparmstartup_stm32f072.s
     文件       10703  2014-12-13 22:42  LibrariesCMSISsourcestartuparmstartup_stm32f0xx.s
     文件        9870  2014-12-13 22:42  LibrariesCMSISsourcestartuparmstartup_stm32f0xx_ld.s
     目录           0  2018-09-13 13:36  LibrariesCMSISsourcestartupgcc_ride7
     文件        8237  2014-12-13 22:42  LibrariesCMSISsourcestartupgcc_ride7startup_stm32f030.s
     文件        8057  2014-12-13 22:42  LibrariesCMSISsourcestartupgcc_ride7startup_stm32f031.s
     文件        8577  2014-12-13 22:42  LibrariesCMSISsourcestartupgcc_ride7startup_stm32f042.s
     文件        8677  2014-12-13 22:42  LibrariesCMSISsourcestartupgcc_ride7startup_stm32f051.s
     文件        9013  2014-12-13 22:42  LibrariesCMSISsourcestartupgcc_ride7startup_stm32f072.s
     文件        8670  2014-12-13 22:42  LibrariesCMSISsourcestartupgcc_ride7startup_stm32f0xx.s
     目录           0  2018-09-13 13:36  LibrariesCMSISsourcestartupiar
     文件       10333  2014-12-13 22:42  LibrariesCMSISsourcestartupiarstartup_stm32f030.s
     文件       10071  2014-12-13 22:42  LibrariesCMSISsourcestartupiarstartup_stm32f031.s
     文件       10902  2014-12-13 22:42  LibrariesCMSISsourcestartupiarstartup_stm32f042.s
     文件       11340  2014-12-13 22:42  LibrariesCMSISsourcestartupiarstartup_stm32f051.s
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