谁给讲一下STM32的SVC中断啊.

发表于 2012-3-29 14:44

为什么其他rtos（如freertos、mqx、rlarm）都用到了SVC中断和PendSV，而ucos-ii却只用了PendSV中断呢？

发表于 2012-3-30 08:39

推荐参考 CortexM3 权威指南

发表于 2012-3-30 16:59

CortexM3 权威指南里有讲，你可以给我个邮箱，把它发给你。
不过空间比较大，网上可以下载。

发表于 2012-3-30 17:08

我是初学的，我想请问一个问题。我用IAR6.3和3.5版本的固件库。按照例子设置，可还是出现
Building configuration: GPIO - Debug
Updating build tree...

9  file(s) deleted.
Updating build tree...
core_cm3.c
Fatal Error[Pe1696]: cannot open source file "#PROJ_DIR$\..\Libraries\
STM32F10x_StdPeriph_Driver\inc"
         searched: "D:\stm32\GPIO\Libraries\CMSIS\CM3\CoreSupport\"
         searched: "#PROJ_DIR$\..\"
         searched: "#PROJ_DIR$\..\Libraries\STM32F10x_StdPeriph_Driver\inc\"
         searched: "C:\Program Files\IAR Systems\Embedded Workbench 6.0\arm\inc\"
         searched: "C:\Program Files\IAR Systems\Embedded Workbench 6.0\arm\inc\c\
"
Error while running C/C++ Compiler
main.c
Fatal Error[Pe1696]: cannot open source file "#PROJ_DIR$\..\Libraries\
STM32F10x_StdPeriph_Driver\inc"
         searched: "D:\stm32\GPIO\"
         searched: "#PROJ_DIR$\..\"
         searched: "#PROJ_DIR$\..\Libraries\STM32F10x_StdPeriph_Driver\inc\"
         searched: "C:\Program Files\IAR Systems\Embedded Workbench 6.0\arm\inc\"
         searched: "C:\Program Files\IAR Systems\Embedded Workbench 6.0\arm\inc\c\
"
Error while running C/C++ Compiler
misc.c
Fatal Error[Pe1696]: cannot open source file "#PROJ_DIR$\..\Libraries\
STM32F10x_StdPeriph_Driver\inc"
         searched: "D:\stm32\GPIO\Libraries\STM32F10x_StdPeriph_Driver\src\"
         searched: "#PROJ_DIR$\..\"
         searched: "#PROJ_DIR$\..\Libraries\STM32F10x_StdPeriph_Driver\inc\"
         searched: "C:\Program Files\IAR Systems\Embedded Workbench 6.0\arm\inc\"
         searched: "C:\Program Files\IAR Systems\Embedded Workbench 6.0\arm\inc\c\
"
Error while running C/C++ Compiler
startup_stm32f10x_hd.s
stm32f10x_flash.c
Fatal Error[Pe1696]: cannot open source file "#PROJ_DIR$\..\Libraries\
STM32F10x_StdPeriph_Driver\inc"
         searched: "D:\stm32\GPIO\Libraries\STM32F10x_StdPeriph_Driver\src\"
         searched: "#PROJ_DIR$\..\"
         searched: "#PROJ_DIR$\..\Libraries\STM32F10x_StdPeriph_Driver\inc\"
         searched: "C:\Program Files\IAR Systems\Embedded Workbench 6.0\arm\inc\"
         searched: "C:\Program Files\IAR Systems\Embedded Workbench 6.0\arm\inc\c\
"
Error while running C/C++ Compiler
stm32f10x_gpio.c
Fatal Error[Pe1696]: cannot open source file "#PROJ_DIR$\..\Libraries\
STM32F10x_StdPeriph_Driver\inc"
         searched: "D:\stm32\GPIO\Libraries\STM32F10x_StdPeriph_Driver\src\"
         searched: "#PROJ_DIR$\..\"
         searched: "#PROJ_DIR$\..\Libraries\STM32F10x_StdPeriph_Driver\inc\"
         searched: "C:\Program Files\IAR Systems\Embedded Workbench 6.0\arm\inc\"
         searched: "C:\Program Files\IAR Systems\Embedded Workbench 6.0\arm\inc\c\
"
Error while running C/C++ Compiler
stm32f10x_it.c
Fatal Error[Pe1696]: cannot open source file "D:\stm32\GPIO\project\stm32f10x_it.c"
Error while running C/C++ Compiler
stm32f10x_rcc.c
Fatal Error[Pe1696]: cannot open source file "#PROJ_DIR$\..\Libraries\
STM32F10x_StdPeriph_Driver\inc"
         searched: "D:\stm32\GPIO\Libraries\STM32F10x_StdPeriph_Driver\src\"
         searched: "#PROJ_DIR$\..\"
         searched: "#PROJ_DIR$\..\Libraries\STM32F10x_StdPeriph_Driver\inc\"
         searched: "C:\Program Files\IAR Systems\Embedded Workbench 6.0\arm\inc\"
         searched: "C:\Program Files\IAR Systems\Embedded Workbench 6.0\arm\inc\c\
"
Error while running C/C++ Compiler
system_stm32f10x.c
Fatal Error[Pe1696]: cannot open source file "#PROJ_DIR$\..\Libraries\
STM32F10x_StdPeriph_Driver\inc"
         searched: "D:\stm32\GPIO\Libraries\CMSIS\CM3\DeviceSupport\ST\
STM32F10x\"
         searched: "#PROJ_DIR$\..\"
         searched: "#PROJ_DIR$\..\Libraries\STM32F10x_StdPeriph_Driver\inc\"
         searched: "C:\Program Files\IAR Systems\Embedded Workbench 6.0\arm\inc\"
         searched: "C:\Program Files\IAR Systems\Embedded Workbench 6.0\arm\inc\c\
"
Error while running C/C++ Compiler

Total number of errors: 8
Total number of warnings: 0

请指教，谢谢

``` · 发表于 2014-3-16 12:11

SVC主要用在分特权级和用户级的操作系统，ucosii不区分特权级和用户级，可以不管这个东西.

发表于 2014-3-16 16:54

这个一直都不明白，谢谢

发表于 2014-3-17 16:22

非常目意5楼的看法
如果OS使用特权保护，那么很多功能要求被限制。操作系统只能通过SVC为应用程序提供特权级才能执行的功能。

发表于 2019-12-30 19:47

csq463276932 发表于 2014-3-16 12:11
SVC主要用在分特权级和用户级的操作系统，ucosii不区分特权级和用户级，可以不管这个东西. ...

回答的好！

谁给讲一下STM32的SVC中断啊.

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