文件名称:SysTick

  • 所属分类:
  • 串口编程
  • 资源属性:
  • [C/C++] [源码]
  • 上传时间:
  • 2015-04-07
  • 文件大小:
  • 2.8mb
  • 下载次数:
  • 0次
  • 提 供 者:
  • 吴**
  • 相关连接:
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  • 别用迅雷下载,失败请重下,重下不扣分!

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SysTick(系统定时器):SysTick 定时器被捆绑在 NVIC 中,用于产生 SysTick 异常(异常号 :15)。在以前,

操作系统和所有使用了时基的系统都必须有一个硬件定时器来产生需要的“滴答”中断,

作为整个系统的时基。滴答中断对操作系统尤其重要。例如,操作系统可以为多个任务分

配不同数目的时间片,确保没有一个任务能霸占系统 ;或者将每个定时器周期的某个时间

范围赐予特定的任务等,操作系统提供的各种定时功能都与这个滴答定时器有关。因此,

需要一个定时器来产生周期性的中断,而且最好还让用户程序不能随意访问它的寄存器,

以维持操作系统“心跳”的节律。-SysTick (System Timer): SysTick timer is tied up in the NVIC, used to generate a SysTick exception (exception number: 15). In the past, the operating system and all systems using the time base must have a hardware timer to produce the desired " tick" interrupt, as the time base for the entire system. Tick ​ ​ interrupt the operating system is particularly important. For example, the operating system can assign multiple tasks for a different number of time slices, to ensure that no one task can occupy the system or a time range for each timer cycle given specific tasks, various timing functions provided by the operating system are related to this ticking timer. Therefore, you need a timer to generate periodic interrupts, and preferably also allows users to freely access the program can not register it, in order to maintain the operating system " heartbeat" of the rhythm.
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下载文件列表





7、SysTick(系统定时器)\Doc\readme.txt

........................\keilkill.bat

........................\Libraries\CMSIS\core_cm3.c

........................\.........\.....\core_cm3.h

........................\.........\.....\startup\startup_stm32f10x_cl.s

........................\.........\.....\.......\startup_stm32f10x_hd.s

........................\.........\.....\.......\startup_stm32f10x_hd_vl.s

........................\.........\.....\.......\startup_stm32f10x_ld.s

........................\.........\.....\.......\startup_stm32f10x_ld_vl.s

........................\.........\.....\.......\startup_stm32f10x_md.s

........................\.........\.....\.......\startup_stm32f10x_md_vl.s

........................\.........\.....\.......\startup_stm32f10x_xl.s

........................\.........\.....\stm32f10x.h

........................\.........\.....\system_stm32f10x.c

........................\.........\.....\system_stm32f10x.h

........................\.........\FWlib\inc\misc.h

........................\.........\.....\...\stm32f10x_adc.h

........................\.........\.....\...\stm32f10x_bkp.h

........................\.........\.....\...\stm32f10x_can.h

........................\.........\.....\...\stm32f10x_cec.h

........................\.........\.....\...\stm32f10x_crc.h

........................\.........\.....\...\stm32f10x_dac.h

........................\.........\.....\...\stm32f10x_dbgmcu.h

........................\.........\.....\...\stm32f10x_dma.h

........................\.........\.....\...\stm32f10x_exti.h

........................\.........\.....\...\stm32f10x_flash.h

........................\.........\.....\...\stm32f10x_fsmc.h

........................\.........\.....\...\stm32f10x_gpio.h

........................\.........\.....\...\stm32f10x_i2c.h

........................\.........\.....\...\stm32f10x_iwdg.h

........................\.........\.....\...\stm32f10x_pwr.h

........................\.........\.....\...\stm32f10x_rcc.h

........................\.........\.....\...\stm32f10x_rtc.h

........................\.........\.....\...\stm32f10x_sdio.h

........................\.........\.....\...\stm32f10x_spi.h

........................\.........\.....\...\stm32f10x_tim.h

........................\.........\.....\...\stm32f10x_usart.h

........................\.........\.....\...\stm32f10x_wwdg.h

........................\.........\.....\src\misc.c

........................\.........\.....\...\stm32f10x_adc.c

........................\.........\.....\...\stm32f10x_bkp.c

........................\.........\.....\...\stm32f10x_can.c

........................\.........\.....\...\stm32f10x_cec.c

........................\.........\.....\...\stm32f10x_crc.c

........................\.........\.....\...\stm32f10x_dac.c

........................\.........\.....\...\stm32f10x_dbgmcu.c

........................\.........\.....\...\stm32f10x_dma.c

........................\.........\.....\...\stm32f10x_exti.c

........................\.........\.....\...\stm32f10x_flash.c

........................\.........\.....\...\stm32f10x_fsmc.c

........................\.........\.....\...\stm32f10x_gpio.c

........................\.........\.....\...\stm32f10x_i2c.c

........................\.........\.....\...\stm32f10x_iwdg.c

........................\.........\.....\...\stm32f10x_pwr.c

........................\.........\.....\...\stm32f10x_rcc.c

........................\.........\.....\...\stm32f10x_rtc.c

........................\.........\.....\...\stm32f10x_sdio.c

........................\.........\.....\...\stm32f10x_spi.c

........................\.........\.....\...\stm32f10x_tim.c

........................\.........\.....\...\stm32f10x_usart.c

........................\.........\.....\...\stm32f10x_wwdg.c

........................\..sting\startup_stm32f10x_hd.lst

........................\.......\流水灯.map

........................\Output\bsp_led.crf

........................\......\bsp_led.d

........................\......\bsp_led.o

........................\......\bsp_systick.crf

........................\......\bsp_systick.d

..............

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