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STM32+LCD顯示,按鍵控制電流值。 (1)24V DC 供電(可以使用成品穩壓電源或者自制),輸出電流范圍:0mA~1000mA; (2)帶負載能力:≥10Ω(在負載電阻5Ω時,效率≥70%); (3)具有“+”、“-”步進調整按鍵,能夠調整輸出電流,設置范圍0mA~1000mA,其步進值為10mA; (4)能夠數字顯示輸出電流給定值和實際輸出電流值,要求實際輸出電流與顯示的電流值之差的絕對值小于5mA; (5)改變負載電阻大小(10Ω~15Ω之間可調節),要求輸出電流穩態絕對誤差值小于5mA。

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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??2015-04-24?11:31??數控直流電流源\
?????目錄???????????0??2015-04-24?11:31??數控直流電流源\CORE\
?????文件???????17273??2010-06-07?10:25??數控直流電流源\CORE\core_cm3.c
?????文件???????85714??2011-02-09?14:59??數控直流電流源\CORE\core_cm3.h
?????文件???????15503??2011-03-10?10:52??數控直流電流源\CORE\startup_stm32f10x_hd.s
?????文件???????12765??2011-03-10?10:52??數控直流電流源\CORE\startup_stm32f10x_md.s
?????目錄???????????0??2015-04-24?11:31??數控直流電流源\HARDWARE\
?????目錄???????????0??2015-04-24?16:07??數控直流電流源\HARDWARE\ADC\
?????文件????????2354??2015-04-24?16:07??數控直流電流源\HARDWARE\ADC\adc.c
?????文件?????????532??2012-09-16?14:32??數控直流電流源\HARDWARE\ADC\adc.h
?????目錄???????????0??2015-04-24?11:31??數控直流電流源\HARDWARE\BEEP\
?????文件?????????573??2015-04-24?11:30??數控直流電流源\HARDWARE\BEEP\beep.c
?????文件?????????180??2015-04-24?11:30??數控直流電流源\HARDWARE\BEEP\beep.h
?????目錄???????????0??2015-04-24?11:31??數控直流電流源\HARDWARE\DAC\
?????文件????????1406??2015-04-24?11:30??數控直流電流源\HARDWARE\DAC\dac.c
?????文件?????????671??2012-09-16?14:13??數控直流電流源\HARDWARE\DAC\dac.h
?????目錄???????????0??2015-04-24?11:31??數控直流電流源\HARDWARE\KEY\
?????文件????????1343??2015-04-24?11:30??數控直流電流源\HARDWARE\KEY\key.c
?????文件????????1114??2012-09-13?15:26??數控直流電流源\HARDWARE\KEY\key.h
?????目錄???????????0??2015-04-24?11:31??數控直流電流源\HARDWARE\LCD\
?????文件???????13278??2015-04-24?11:30??數控直流電流源\HARDWARE\LCD\blcd.c
?????文件???????16156??2012-08-02?00:02??數控直流電流源\HARDWARE\LCD\font.h
?????文件????????4629??2015-04-24?11:30??數控直流電流源\HARDWARE\LCD\lcd.h
?????目錄???????????0??2015-04-24?11:31??數控直流電流源\HARDWARE\LED\
?????文件?????????824??2015-04-24?11:30??數控直流電流源\HARDWARE\LED\led.c
?????文件?????????638??2014-07-31?20:59??數控直流電流源\HARDWARE\LED\led.h
?????文件?????????399??2011-04-23?10:24??數控直流電流源\keilkilll.bat
?????目錄???????????0??2015-04-24?14:23??數控直流電流源\OBJ\
?????文件??????290858??2015-04-24?11:30??數控直流電流源\OBJ\adc.crf
?????文件?????????826??2015-04-24?11:30??數控直流電流源\OBJ\adc.d
?????文件??????311264??2015-04-24?11:31??數控直流電流源\OBJ\adc.o
............此處省略191個文件信息

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