#include?“app_delay.h“
#include?“stm32f0xx.h“



static?uint8_t??fac_us=0;
static?uint16_t?fac_ms=0;

void?delay_init（uint8_t?SYSCLK）
{


	SysTick->CTRL=SysTick_CLKSource_HCLK_Div8;	
	fac_us=SYSCLK/8;	
	fac_ms=（uint16_t）fac_us*1000;

}								????

		????								???
void?delay_us（uint32_t?nus）
{		
	uint32_t?temp;	????	?
	SysTick->LOAD=nus*fac_us;?		?
	SysTick->VAL=0x00;???????
	SysTick->CTRL|=SysTick_CTRL_ENABLE_Msk?;??????????
	do
	{
		temp=SysTick->CTRL;
	}
	while（temp&0x01&&!（temp&（1<<16）））;
	SysTick->CTRL&=~SysTick_CTRL_ENABLE_Msk;???????
	SysTick->VAL?=0X00;??????
}

void?delay_ms（uint32_t?nms）
{	?		??	??
	uint32_t?temp;		???
	SysTick->LOAD=（uint32_t）nms*fac_ms;
	SysTick->VAL?=0x00;??????????
	SysTick->CTRL|=0x01?;???????????
	do
	{
		temp=SysTick->CTRL;
	}
	while（temp&0x01&&!（temp&（1<<16）））;//?????????
	SysTick->CTRL=0x00;???????//?????
	SysTick->VAL?=0X00;???????//?????	??	????
}?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2020-04-13?21:10??2.4Gwifi發(fā)\
?????目錄???????????0??2020-04-13?21:10??2.4Gwifi發(fā)\APP\
?????文件?????????953??2017-07-14?14:10??2.4Gwifi發(fā)\APP\app_delay.c
?????文件?????????201??2017-05-02?09:01??2.4Gwifi發(fā)\APP\app_delay.h
?????文件????????6007??2017-07-14?12:26??2.4Gwifi發(fā)\APP\app_nrf24l01.c
?????文件????????4194??2017-07-14?09:21??2.4Gwifi發(fā)\APP\app_nrf24l01.h
?????文件????????1124??2017-07-10?21:41??2.4Gwifi發(fā)\APP\app_spi.c
?????文件?????????161??2017-07-11?08:32??2.4Gwifi發(fā)\APP\app_spi.h
?????目錄???????????0??2020-04-13?21:10??2.4Gwifi發(fā)\BSP\
?????文件????????5751??2017-07-14?12:07??2.4Gwifi發(fā)\BSP\bsp.c
?????文件????????4158??2017-07-11?20:39??2.4Gwifi發(fā)\BSP\bsp.h
?????目錄???????????0??2020-04-13?21:10??2.4Gwifi發(fā)\CMSIS\
?????目錄???????????0??2020-04-13?21:10??2.4Gwifi發(fā)\CMSIS\Device\
?????目錄???????????0??2020-04-13?21:10??2.4Gwifi發(fā)\CMSIS\Device\ST\
?????目錄???????????0??2020-04-13?21:10??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\
?????目錄???????????0??2020-04-13?21:10??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\Include\
?????文件??????462563??2017-07-09?09:42??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\Include\stm32f0xx.h
?????文件??????462509??2014-12-04?17:34??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\Include\stm32f0xx.h~RF9777f.TMP
?????文件????????2223??2017-04-10?19:50??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\Include\system_stm32f0xx.h
?????文件???????45805??2014-12-04?17:34??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\Release_Notes.html
?????目錄???????????0??2020-04-13?21:10??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\Source\
?????目錄???????????0??2020-04-13?21:10??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\Source\Templates\
?????目錄???????????0??2020-04-13?21:10??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\Source\Templates\arm\
?????文件???????10677??2014-12-04?17:34??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\Source\Templates\arm\startup_stm32f030.s
?????文件???????10953??2014-12-04?17:34??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\Source\Templates\arm\startup_stm32f030xc.s
?????文件???????10476??2014-12-04?17:34??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\Source\Templates\arm\startup_stm32f031.s
?????文件???????11304??2014-12-04?17:34??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\Source\Templates\arm\startup_stm32f042.s
?????文件???????11312??2014-12-04?17:34??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\Source\Templates\arm\startup_stm32f051.s
?????文件???????10639??2014-12-04?17:34??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\Source\Templates\arm\startup_stm32f070x6.s
?????文件???????11130??2014-12-04?17:34??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\Source\Templates\arm\startup_stm32f070xb.s
?????文件???????11772??2014-12-04?17:34??2.4Gwifi發(fā)\CMSIS\Device\ST\STM32F0xx\Source\Templates\arm\startup_stm32f072.s
............此處省略297個文件信息