Timer experiment: the experimental results for the four 8-segment LED display 1234, when the press of a keyboard, the timer interrupt will be generated, four 8 point digital control will appear that corresponds to a certain delay After four 8 digital tube display resumed 1234. Debug in flash, you need to modify the RO BASE is 0x00000000, the other not modify, recompile download can run. Note: Due to system interrupt, the program counter will jump to 0x18 Department execute the interrupt service routine, it can not debug the SDRAM.

实验5 定时器\Readme.txt
............\timer.mcp
............\library\library_register.s
............\.......\library_variant.s
............\moduleDriver\button_statusFetch.s
............\os\os_null.s
............\..\register_variant.h
............\..\timer.c
............\post\boot.s
............\....\handler_IRQ.s
............\....\led_code.s
............\....\post_initGpio.s
............\....\post_initKey.s
............\....\post_initMem.s
............\....\post_initStack.s
............\....\post_initVariant.s
............\timer_Data\CWSettingsWindows.stg
............\..........\Debug\TargetDataWindows.tdt
............\..........\.....Rel\TargetDataWindows.tdt
............\..........\........\timer.axf
............\..........\........\timer.bin
............\..........\........\ObjectCode\boot.o
............\..........\........\..........\handler_IRQ.o
............\..........\........\..........\library_register.o
............\..........\........\..........\library_variant.o
............\..........\........\..........\post_initGpio.o
............\..........\........\..........\post_initKey.o
............\..........\........\..........\post_initMem.o
............\..........\........\..........\post_initStack.o
............\..........\........\..........\post_initVariant.o
............\..........\........\..........\timer.o
............\..........\Release\TargetDataWindows.tdt
............\..........\DebugRel\ObjectCode
............\..........\Debug
............\..........\DebugRel
............\..........\Release
............\library
............\moduleDriver
............\os
............\post
............\timer_Data
实验5 定时器

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