#include?“delay.h“

//////////////////////////////////////////////////////////////////////////////////?	?
static?u8??fac_us=0;//us延時倍乘數
static?u16?fac_ms=0;//ms延時倍乘數

//初始化延遲函數
//SYSTICK的時鐘固定為HCLK時鐘的1/8
//SYSCLK:系統時鐘
void?delay_init（）	?
{
	SysTick_CLKSourceConfig（SysTick_CLKSource_HCLK_Div8）;	//選擇外部時鐘??HCLK/8
	fac_us=SystemCoreClock/8000000;	//為系統時鐘的1/8??
	fac_ms=（u16）fac_us*1000;//代表每個ms需要的systick時鐘數???
}

//延時nus
//nus為要延時的us數.		????								???
void?delay_us（u32?nus）
{		
	u32?temp;	????	?
	SysTick->LOAD=nus*fac_us;?//時間加載	??		?
	SysTick->VAL=0x00;????????//清空計數器
	SysTick->CTRL|=SysTick_CTRL_ENABLE_Msk?;??????????//開始倒數	?
	do
	{
		temp=SysTick->CTRL;???????????????????????????//計數器倒數到0時SysTick->CTRL為0
	}
	while（temp&0x01&&!（temp&（1<<16）））;//等待時間到達???
	SysTick->CTRL&=~SysTick_CTRL_ENABLE_Msk;???????//關閉計數器
	SysTick->VAL?=0X00;???????//清空計數器	?
}
//延時nms
//注意nms的范圍
//SysTick->LOAD為24位寄存器所以最大延時為:
//nms<=0xffffff*8*1000/SYSCLK
//SYSCLK單位為Hznms單位為ms
/

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1646??2015-06-03?08:36??F303RE_StopMode\Hardware\Delay.c

?????文件????????163??2015-06-03?08:36??F303RE_StopMode\Hardware\Delay.h

?????文件???????1374??2015-06-03?08:36??F303RE_StopMode\Hardware\eeprom.c

?????文件????????497??2015-06-03?08:36??F303RE_StopMode\Hardware\eeprom.h

?????文件???????1584??2015-06-03?08:54??F303RE_StopMode\Hardware\KEY.C

?????文件????????112??2015-06-03?08:49??F303RE_StopMode\Hardware\KEY.H

?????文件????????403??2015-06-03?08:36??F303RE_StopMode\Hardware\LED.c

?????文件????????471??2015-06-03?08:36??F303RE_StopMode\Hardware\LED.h

?????文件????????646??2015-06-03?17:20??F303RE_StopMode\Hardware\main.c

?????文件???????1538??2015-06-03?10:02??F303RE_StopMode\Hardware\main.h

?????文件???????4894??2015-06-03?16:34??F303RE_StopMode\Hardware\RTC.c

?????文件????????174??2015-06-03?16:34??F303RE_StopMode\Hardware\RTC.h

?????文件???????2494??2015-06-03?08:36??F303RE_StopMode\Hardware\USART.c

?????文件????????223??2015-06-03?08:36??F303RE_StopMode\Hardware\USART.h

?????文件????????413??2015-06-03?08:57??F303RE_StopMode\keilkilll.bat

?????文件?????726626??2015-06-03?08:36??F303RE_StopMode\Libraries\CMSIS\Device\ST\STM32F30x\Include\stm32f30x.h

?????文件???????2208??2015-06-03?08:36??F303RE_StopMode\Libraries\CMSIS\Device\ST\STM32F30x\Include\system_stm32f30x.h

?????文件??????23799??2015-06-03?09:02??F303RE_StopMode\Libraries\CMSIS\Device\ST\STM32F30x\Source\Templates\arm\startup_stm32f302x8.s

?????文件??????26343??2015-06-03?09:02??F303RE_StopMode\Libraries\CMSIS\Device\ST\STM32F30x\Source\Templates\arm\startup_stm32f303xc.s

?????文件??????27310??2015-06-03?08:37??F303RE_StopMode\Libraries\CMSIS\Device\ST\STM32F30x\Source\Templates\arm\startup_stm32f303xe.s

?????文件??????26339??2015-06-03?09:02??F303RE_StopMode\Libraries\CMSIS\Device\ST\STM32F30x\Source\Templates\arm\startup_stm32f30x.s

?????文件??????22159??2015-06-03?09:02??F303RE_StopMode\Libraries\CMSIS\Device\ST\STM32F30x\Source\Templates\arm\startup_stm32f334x8.s

?????文件??????14043??2015-06-03?09:02??F303RE_StopMode\Libraries\CMSIS\Device\ST\STM32F30x\Source\Templates\system_stm32f30x.c

?????文件??????48359??2015-06-03?08:36??F303RE_StopMode\Libraries\STM32F30x_StdPeriph_Driver\inc\stm32f30x_adc.h

?????文件??????27260??2015-06-03?08:36??F303RE_StopMode\Libraries\STM32F30x_StdPeriph_Driver\inc\stm32f30x_can.h

?????文件??????25499??2015-06-03?08:36??F303RE_StopMode\Libraries\STM32F30x_StdPeriph_Driver\inc\stm32f30x_comp.h

?????文件???????4650??2015-06-03?08:36??F303RE_StopMode\Libraries\STM32F30x_StdPeriph_Driver\inc\stm32f30x_crc.h

?????文件??????16711??2015-06-03?08:36??F303RE_StopMode\Libraries\STM32F30x_StdPeriph_Driver\inc\stm32f30x_dac.h

?????文件???????4251??2015-06-03?08:36??F303RE_StopMode\Libraries\STM32F30x_StdPeriph_Driver\inc\stm32f30x_dbgmcu.h

?????文件??????21196??2015-06-03?08:36??F303RE_StopMode\Libraries\STM32F30x_StdPeriph_Driver\inc\stm32f30x_dma.h

............此處省略73個文件信息