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STM32測輸入信號頻率,通過輸入捕獲的方式測量信號頻率(學習定時器的輸入捕獲功能)

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
-----------?---------??----------?-----??----
?????文件??????17273??2010-06-07?10:25??輸入捕獲\CORE\core_cm3.c
?????文件??????85714??2011-02-09?14:59??輸入捕獲\CORE\core_cm3.h
?????文件??????15503??2011-03-10?10:52??輸入捕獲\CORE\startup_stm32f10x_hd.s
?????文件???????1827??2015-03-20?12:41??輸入捕獲\HARDWARE\KEY\key.c
?????文件???????1186??2015-03-19?16:14??輸入捕獲\HARDWARE\KEY\key.h
?????文件???????1298??2012-09-13?13:13??輸入捕獲\HARDWARE\LED\led.c
?????文件????????638??2012-09-13?09:45??輸入捕獲\HARDWARE\LED\led.h
?????文件???????7622??2015-04-23?15:24??輸入捕獲\HARDWARE\TIMER\timer.c
?????文件????????180??2012-08-27?22:37??輸入捕獲\HARDWARE\TIMER\timer.h
?????文件????????399??2011-04-23?10:24??輸入捕獲\keilkilll.bat
?????文件???????3942??2017-08-03?11:30??輸入捕獲\OBJ\core_cm3.crf
?????文件????????104??2017-08-03?11:30??輸入捕獲\OBJ\core_cm3.d
?????文件??????11312??2017-08-03?11:30??輸入捕獲\OBJ\core_cm3.o
?????文件?????349955??2017-08-03?11:30??輸入捕獲\OBJ\delay.crf
?????文件???????1669??2017-08-03?11:30??輸入捕獲\OBJ\delay.d
?????文件?????384668??2017-08-03?11:30??輸入捕獲\OBJ\delay.o
?????文件?????351436??2017-08-03?11:30??輸入捕獲\OBJ\ICAPTURE.axf
?????文件???????1324??2017-08-03?12:28??輸入捕獲\OBJ\ICAPTURE.build_log.htm
?????文件??????27681??2017-08-03?11:30??輸入捕獲\OBJ\ICAPTURE.hex
?????文件??????78993??2017-08-03?11:30??輸入捕獲\OBJ\ICAPTURE.htm
?????文件????????586??2017-08-03?11:30??輸入捕獲\OBJ\ICAPTURE.lnp
?????文件????????479??2017-07-28?09:49??輸入捕獲\OBJ\ICAPTURE.sct
?????文件??????31341??2017-08-03?12:28??輸入捕獲\OBJ\ICAPTURE_ICAPTURE.dep
?????文件?????350475??2017-08-03?11:30??輸入捕獲\OBJ\key.crf
?????文件???????1640??2017-08-03?11:30??輸入捕獲\OBJ\key.d
?????文件?????385588??2017-08-03?11:30??輸入捕獲\OBJ\key.o
?????文件?????349502??2017-08-03?11:30??輸入捕獲\OBJ\led.crf
?????文件???????1601??2017-08-03?11:30??輸入捕獲\OBJ\led.d
?????文件?????383536??2017-08-03?11:30??輸入捕獲\OBJ\led.o
?????文件?????354958??2017-08-03?11:30??輸入捕獲\OBJ\main.crf
............此處省略121個文件信息
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