STM32一个Timer输出4路不同频率、可调占空比的PWM

stm32 用一个定时器(TIM3)，实现四路不同频率、占空比可调的PWM

/**
  ******************************************************************************
  * @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）
 

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

     文件     530693  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\ST\STM32F4xx\Include\stm32f4xx.h

     文件       2096  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\ST\STM32F4xx\Include\system_stm32f4xx.h

     文件      17824  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\ST\STM32F4xx\Release_Notes.html

     文件      29511  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\arm\startup_stm32f4xx.s

     文件      23970  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\gcc_ride7\startup_stm32f4xx.s

     文件      24546  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\iar\startup_stm32f4xx.s

     文件      21726  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\system_stm32f4xx.c

     文件       3672  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\TASKING\cstart_thumb2.asm

     文件      24040  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\CMSIS\ST\STM32F4xx\Source\Templates\TrueSTUDIO\startup_stm32f4xx.s

     文件       6792  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\misc.h

     文件      32417  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_adc.h

     文件      27186  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_can.h

     文件       2284  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_crc.h

     文件      12528  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_cryp.h

     文件      14814  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_dac.h

     文件       4164  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_dbgmcu.h

     文件      12845  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_dcmi.h

     文件      28750  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_dma.h

     文件       7880  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_exti.h

     文件      14463  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_flash.h

     文件      27044  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_fsmc.h

     文件      17569  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_gpio.h

     文件       8952  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_hash.h

     文件      31516  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_i2c.h

     文件       4191  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_iwdg.h

     文件       6022  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_pwr.h

     文件      24742  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_rcc.h

     文件       3826  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_rng.h

     文件      40414  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_rtc.h

     文件      22645  2011-10-28 10:31  STM32F4-Discovery_FW_V1.1.0\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_sdio.h

............此处省略87个文件信息