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c595四位數碼管在STM32上計時顯示,在閱讀了51的程序后大概了解了主要代碼思路,花了一點時間把程序移植到了STM32上,寫了一個計時的功能。和大家分享下。我手上的單片機是**STM32f103C8T6.**

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代碼片段和文件信息

/**************************************************************************//**
?*?@file?????core_cm3.c
?*?@brief????CMSIS?Cortex-M3?Core?Peripheral?Access?layer?Source?File
?*?@version??V1.30
?*?@date?????30.?October?2009
?*
?*?@note
?*?Copyright?(C)?2009?ARM?Limited.?All?rights?reserved.
?*
?*?@par
?*?ARM?Limited?(ARM)?is?supplying?this?software?for?use?with?Cortex-M?
?*?processor?based?microcontrollers.??This?file?can?be?freely?distributed?
?*?within?development?tools?that?are?supporting?such?ARM?based?processors.?
?*
?*?@par
?*?THIS?SOFTWARE?IS?PROVIDED?“AS?IS“.??NO?WARRANTIES?WHETHER?EXPRESS?IMPLIED
?*?OR?STATUTORY?INCLUDING?BUT?NOT?LIMITED?TO?IMPLIED?WARRANTIES?OF
?*?MERCHANTABILITY?AND?FITNESS?FOR?A?PARTICULAR?PURPOSE?APPLY?TO?THIS?SOFTWARE.
?*?ARM?SHALL?NOT?IN?ANY?CIRCUMSTANCES?BE?LIABLE?FOR?SPECIAL?INCIDENTAL?OR
?*?CONSEQUENTIAL?DAMAGES?FOR?ANY?REASON?WHATSOEVER.
?*
?******************************************************************************/

#include?

/*?define?compiler?specific?symbols?*/
#if?defined?(?__CC_ARM???)
??#define?__ASM????????????__asm??????????????????????????????????????/*!??#define?__INLINE?????????__inline???????????????????????????????????/*!
#elif?defined?(?__ICCARM__?)
??#define?__ASM???????????__asm???????????????????????????????????????/*!??#define?__INLINE????????inline??????????????????????????????????????/*!
#elif?defined???(??__GNUC__??)
??#define?__ASM????????????__asm??????????????????????????????????????/*!??#define?__INLINE?????????inline?????????????????????????????????????/*!
#elif?defined???(??__TASKING__??)
??#define?__ASM????????????__asm??????????????????????????????????????/*!??#define?__INLINE?????????inline?????????????????????????????????????/*!
#endif


/*?###################??Compiler?specific?Intrinsics??###########################?*/

#if?defined?(?__CC_ARM???)?/*------------------RealView?Compiler?-----------------*/
/*?ARM?armcc?specific?functions?*/

/**
?*?@brief??Return?the?Process?Stack?Pointer
?*
?*?@return?ProcessStackPointer
?*
?*?Return?the?actual?process?stack?pointer
?*/
__ASM?uint32_t?__get_PSP(void)
{
??mrs?r0?psp
??bx?lr
}

/**
?*?@brief??Set?the?Process?Stack?Pointer
?*
?*?@param??topOfProcStack??Process?Stack?Pointer
?*
?*?Assign?the?value?ProcessStackPointer?to?the?MSP?
?*?(process?stack?pointer)?Cortex?processor?register
?*/
__ASM?void?__set_PSP(uint32_t?topOfProcStack)
{
??msr?psp?r0
??bx?lr
}

/**
?*?@brief??Return?the?Main?Stack?Pointer
?*
?*?@return?Main?Stack?Pointer
?*
?*?Return?the?curren

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-01-15?16:37??LED4TIME\
?????目錄???????????0??2019-01-15?16:37??LED4TIME\CORE\
?????文件???????17273??2010-06-07?10:25??LED4TIME\CORE\core_cm3.c
?????文件???????85714??2011-02-09?14:59??LED4TIME\CORE\core_cm3.h
?????文件???????15503??2011-03-10?10:52??LED4TIME\CORE\startup_stm32f10x_hd.s
?????文件???????12765??2011-03-10?10:52??LED4TIME\CORE\startup_stm32f10x_md.s
?????目錄???????????0??2019-01-15?16:51??LED4TIME\HARDWARE\
?????目錄???????????0??2019-01-15?21:54??LED4TIME\HARDWARE\LED4\
?????目錄???????????0??2019-01-15?16:37??LED4TIME\HARDWARE\led4show\
?????文件?????????880??2019-01-15?15:19??LED4TIME\HARDWARE\led4show\led4show.c
?????文件??????????92??2019-01-15?15:19??LED4TIME\HARDWARE\led4show\led4show.h
?????文件????????1036??2019-01-15?21:54??LED4TIME\HARDWARE\LED4\led4.c
?????文件?????????169??2019-01-15?21:54??LED4TIME\HARDWARE\LED4\led4.h
?????目錄???????????0??2019-01-15?21:53??LED4TIME\HARDWARE\OLED\
?????文件???????26738??2018-12-21?20:54??LED4TIME\HARDWARE\OLED\bmp.h
?????文件????????9678??2019-01-15?21:53??LED4TIME\HARDWARE\OLED\oled.c
?????文件????????2588??2017-10-25?20:45??LED4TIME\HARDWARE\OLED\oled.h
?????文件????????2588??2015-12-03?14:28??LED4TIME\HARDWARE\OLED\oled.h.bak
?????文件???????15257??2014-10-26?23:37??LED4TIME\HARDWARE\OLED\oledfont.h
?????目錄???????????0??2019-01-15?21:57??LED4TIME\HARDWARE\TIMER\
?????文件????????1612??2019-01-15?21:57??LED4TIME\HARDWARE\TIMER\timer.c
?????文件?????????111??2019-01-15?21:54??LED4TIME\HARDWARE\TIMER\timer.h
?????文件?????????399??2011-04-23?10:24??LED4TIME\keilkilll.bat
?????目錄???????????0??2019-01-15?22:05??LED4TIME\OBJ\
?????文件????????3940??2019-01-15?22:05??LED4TIME\OBJ\core_cm3.crf
?????文件?????????102??2019-01-15?22:05??LED4TIME\OBJ\core_cm3.d
?????文件???????11192??2019-01-15?22:05??LED4TIME\OBJ\core_cm3.o
?????文件??????247028??2019-01-15?22:05??LED4TIME\OBJ\delay.crf
?????文件?????????652??2019-01-15?22:05??LED4TIME\OBJ\delay.d
?????文件??????265996??2019-01-15?22:05??LED4TIME\OBJ\delay.o
?????文件??????????19??2014-02-20?01:13??LED4TIME\OBJ\ExtDll.iex
............此處省略148個文件信息

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