创建/**为程序创建桌面快捷方式*/private void addShortcut(){Intent shortcut = new Intent(“com.android.launch
usart.c串口中断处理函数：voidUSART1_IRQHandler(void){u8res;if(USART1->SR(15))//接收到数据{res=USART1->DR;…
输出配置#defineLED_GPIOGPIOC#defineLED_PINGPIO_Pin_9voidGPIO_Configuration(void){GPIO_InitTypeDefGPIO_In
将TIM4配置成输入捕获功能用于计算矩形波的周期。#defineNVIC_Priority_Timer41voidTIM4_Init_Config(void){GPIO_InitTypeDefGPIO
GPIO输入模式voidGPIO_Configuration(void){GPIO_InitTypeDefGPIO_InitStructure;RCC_AHBPeriphClockCmd(RCC_AH
1.毫秒级的延时延时1ms;voiddelay_1ms(void){unsignedinti;for(i=1;i(unsignedint)(xtal*143-2);i++);}在上式中，xtal为晶振
#defineROTATE_APAin(2)#defineROTATE_BPAin(3)s16DATA=0;voidEXTI2_IRQHandler(void){if(EXTI_GetITStatus
Request_irq()调用的定义：intrequest_irq(unsignedintirq,void(*handler)(intirq,void*dev_id,structpt_regs*reg
