资源简介
STM32定时器输出带有死区时间的PWM波形。死区时间为1us,CH1,CH2,CH3之间的相位差为3us,频率为50KHz。此外,更改一下代码,还可以进行刹车控制。
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
----------- --------- ---------- ----- ----
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89个文件信息
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