#include?“stm32f4xx_gpio.h“
#include?“stm32f4xx_rcc.h“
#include?“stm32f4xx_tim.h“
#include?“misc.h“
#include?“stm32f4xx.h“


void?led_gpio_config（void）?{????//???
????GPIO_InitTypeDef?led_struct;
????RCC_APB2PeriphClockCmd（RCC_AHB1Periph_GPIOE?ENABLE）;
????led_struct.GPIO_Pin?=?GPIO_Pin_2;
????led_struct.GPIO_Speed?=?GPIO_Speed_50MHz;
????led_struct.GPIO_Mode?=?GPIO_OType_PP;
????GPIO_Init（GPIOE?&led_struct）;
}

int?g_led?=?0;

void?main（）
{
	//SCB->VTOR?=?FLASH_base?|?0x10000;
	NVIC_PriorityGroupConfig（NVIC_PriorityGroup_2）;
	led_gpio_config（）;
	GPIO_WriteBit（GPIOE?GPIO_Pin_2?1）;????//??????????
	
	RCC_APB1PeriphClockCmd（RCC_APB1Periph_TIM3ENABLE）;
	
	TIM_TimebaseInitTypeDef?TIM_TimebaseStructure;??//????????????
	TIM_TimebaseStructure.TIM_Period?=?5000;????????//??????
	TIM_TimebaseStructure.TIM_Prescaler?=7199;
	TIM_TimebaseStructure.TIM_ClockDivision?=?TIM_CKD_DIV1;
	TIM_TimebaseStructure.TIM_CounterMode?=?TIM_CounterMode_Up;
	TIM_TimebaseInit（TIM3?&TIM_TimebaseStructure）;?//?????
	
	TIM_ITConfig（TIM3TIM_IT_UpdateENABLE?）;
	
	NVIC_InitTypeDef?NVIC_InitStructure;
	NVIC_InitStructure.NVIC_IRQChannel=TIM3_IRQn;//TIM3??
	NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;//IRQ?????
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0;//?????????0
	NVIC_InitStructure.NVIC_IRQChannelSubPriority=3;//????3?
	NVIC_Init（&NVIC_InitStructure）;//???NVIC???
	
	TIM_Cmd（TIM3ENABLE）;//???3??
	
	while（1）?{

	}
}

void?TIM3_IRQHandler（void）
{
????if（TIM_GetITStatus（TIM3TIM_IT_Update）!=RESET）
????{
				if?（g_led?==?0）
				{
					g_led?=?1;
					GPIO_WriteBit（GPIOE?GPIO_Pin_2?1）;????//??????????
				}
				else
				{
					g_led?=?0;
					GPIO_WriteBit（GPIOE?GPIO_Pin_2?0）;????//??????????
				}
????????TIM_ClearITPendingBit（TIM3TIM_IT_Update）;
????}????
}?

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

?????文件??????84320??2019-02-26?09:01??IAP_test\app\app.uvguix.Xiao

?????文件???????7821??2019-02-26?09:01??IAP_test\app\app.uvoptx

?????文件??????13649??2019-02-26?09:01??IAP_test\app\app.uvprojx

?????文件???????1848??2019-02-25?18:10??IAP_test\app\main.c

?????文件?????167858??2019-02-27?09:02??IAP_test\boot_loader\bootloader.uvguix.Xiao

?????文件??????11227??2019-02-27?09:02??IAP_test\boot_loader\bootloader.uvoptx

?????文件??????16442??2019-02-27?08:25??IAP_test\boot_loader\bootloader.uvprojx

?????文件???????2851??2017-11-21?16:21??IAP_test\boot_loader\DebugConfig\Target_1_STM32F407VETx.dbgconf

?????文件??????54982??2019-02-27?08:59??IAP_test\boot_loader\JlinkLog.txt

?????文件????????755??2019-02-26?10:07??IAP_test\boot_loader\JlinkSettings.ini

?????文件??????69562??2019-02-27?08:51??IAP_test\boot_loader\Listings\bootloader.map

?????文件??????82622??2019-02-26?14:43??IAP_test\boot_loader\Listings\startup_stm32f407xx.lst

?????文件???????6811??2019-02-27?08:51??IAP_test\boot_loader\main.c

?????文件?????288692??2019-02-27?08:51??IAP_test\boot_loader\objects\bootloader.axf

?????文件???????2521??2019-02-27?08:51??IAP_test\boot_loader\objects\bootloader.build_log.htm

?????文件???????4326??2019-02-27?08:51??IAP_test\boot_loader\objects\bootloader.hex

?????文件??????51489??2019-02-27?08:51??IAP_test\boot_loader\objects\bootloader.htm

?????文件????????399??2019-02-27?08:51??IAP_test\boot_loader\objects\bootloader.lnp

?????文件????????479??2019-02-26?11:40??IAP_test\boot_loader\objects\bootloader.sct

?????文件??????10871??2019-02-27?08:51??IAP_test\boot_loader\objects\bootloader_Target?1.dep

?????文件?????????19??2019-02-27?08:46??IAP_test\boot_loader\objects\ExtDll.iex

?????文件?????459189??2019-02-27?08:51??IAP_test\boot_loader\objects\main.crf

?????文件???????2168??2019-02-27?08:51??IAP_test\boot_loader\objects\main.d

?????文件?????486764??2019-02-27?08:51??IAP_test\boot_loader\objects\main.o

?????文件?????458151??2019-02-26?14:43??IAP_test\boot_loader\objects\misc.crf

?????文件???????2184??2019-02-26?14:43??IAP_test\boot_loader\objects\misc.d

?????文件?????482208??2019-02-26?14:43??IAP_test\boot_loader\objects\misc.o

?????文件?????????81??2019-02-26?14:43??IAP_test\boot_loader\objects\startup_stm32f407xx.d

?????文件???????8056??2019-02-26?14:43??IAP_test\boot_loader\objects\startup_stm32f407xx.o

?????文件?????464844??2019-02-26?14:43??IAP_test\boot_loader\objects\stm32f4xx_flash.crf

............此處省略88個文件信息