资源简介
stm32f4中用SD卡存储DCMI的图像,程序中用的是串口来控制拍照的,串口2每收到一个字节,则拍照一次,并存储在SD卡中
代码片段和文件信息
/**
******************************************************************************
* @file system_stm32f4xx.c
* @author MCD Application Team
* @version V1.0.2
* @date 05-March-2012
* @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_V1.0.1.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 2013-05-09 12:01 完整的\
目录 0 2013-05-09 12:00 完整的\Libraries\
目录 0 2013-05-09 12:00 完整的\Libraries\CMSIS\
文件 51511 2011-07-26 17:34 完整的\Libraries\CMSIS\CMSIS END USER LICENCE AGREEMENT.pdf
目录 0 2013-05-09 12:00 完整的\Libraries\CMSIS\Device\
目录 0 2013-05-09 12:00 完整的\Libraries\CMSIS\Device\ST\
目录 0 2013-05-09 12:00 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\
目录 0 2013-05-09 12:00 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Include\
文件 530857 2012-03-05 21:39 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Include\stm32f4xx.h
文件 2222 2012-03-05 21:12 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Include\system_stm32f4xx.h
文件 20549 2012-03-05 22:22 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Release_Notes.html
目录 0 2013-05-09 12:00 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Source\
目录 0 2013-05-09 12:00 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\
目录 0 2013-05-09 12:00 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\arm\
文件 29637 2012-03-05 21:23 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\arm\startup_stm32f4xx.s
目录 0 2013-05-09 12:00 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\gcc_ride7\
文件 24087 2012-03-05 21:20 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\gcc_ride7\startup_stm32f4xx.s
目录 0 2013-05-09 12:00 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\iar\
文件 24679 2012-03-05 21:30 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\iar\startup_stm32f4xx.s
文件 21856 2012-03-05 21:12 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\system_stm32f4xx.c
目录 0 2013-05-09 12:00 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\TASKING\
文件 3672 2012-01-27 00:58 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\TASKING\cstart_thumb2.asm
目录 0 2013-05-09 12:00 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\TrueSTUDIO\
文件 24157 2012-03-05 21:20 完整的\Libraries\CMSIS\Device\ST\STM32F4xx\Source\Templates\TrueSTUDIO\startup_stm32f4xx.s
目录 0 2013-05-09 12:00 完整的\Libraries\CMSIS\Documentation\
文件 13643 2011-07-29 21:50 完整的\Libraries\CMSIS\Documentation\CMSIS-SVD_Schema_1_0.xsd
文件 127419 2011-07-26 17:34 完整的\Libraries\CMSIS\Documentation\CMSIS_CM4_SIMD.htm
文件 65406 2011-07-26 17:34 完整的\Libraries\CMSIS\Documentation\CMSIS_Core.htm
文件 9956 2011-07-27 16:27 完整的\Libraries\CMSIS\Documentation\CMSIS_DebugSupport.htm
文件 17863 2011-07-27 15:48 完整的\Libraries\CMSIS\Documentation\CMSIS_History.htm
文件 123676 2011-07-26 17:34 完整的\Libraries\CMSIS\Documentation\CMSIS_Logo_Final.jpg
............此处省略1674个文件信息
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