3.1 systick 定时器设置 1staticvoidsystick_setup(void)2{3/* clock rate / 1000 to get 1mS interrupt rate */4systick_set_reload(64000);5systick_set_clocksource(STK_CSR_CLKSOURCE_AHB);6systick_counter_enable();7/* this done last */8systick_interrupt_enable();9} 这里设置systick重载值为...
This is an interrupt handler. The HAL libraries will manage the main interrupt service routine (ISR) when the timer interrupt occurs (feel free to examine it in stm32l4xx_it.c). At some point in that ISR, the code will call HAL_TIM_PeriodElapsedCallback(), which we ...
从stm32的架构图可以看到，挂载在APB2上的外设有GPIO、EXTI、AFIO GPIO的所有引脚默认是与输入输出寄存器...
STM32 USART+DMA+TIMER 定时器1秒触发一次DMA用串口发送一个字符 硬件基于stm32vldiscovery超值体验板, ...
函数里面有一句注释:/* Configure the SysTick to have interrupt in 1ms time basis*/,翻译过来就是,将 SysTick 配置为 1ms 中断。也就是说,经过此函数,SysTick 定时器被初始化为 1ms 的时基单元,即每毫秒进入一次 Systick 中断。 我们可以在左侧 Application/User 文件夹的 stm32f1xx_it.c 文件中找到 ...
STM32CubeMX 查看 timer10 频率 stm32频率检测 一、STM32 IO中断方式测试频率有要求,频率不能过快,目前测试2M没问题,频率过高中断触发就处理不过来。 二、过快的频率得先降频,用D触发器对频率进行降频,如下图所示,2、4、8、16分频,此例用2M时钟进行测试,对2M时钟进行2、4、8、16分频...
Sign in to view logs Summary Jobs build Run details Usage Workflow file Triggered via pull request February 5, 2025 13:03 H-Grobben opened #16706 AEMICS:stm32g4_timer20_interrupt Status Success Total duration 16s Artifacts – commit_formatting.yml on: pull_request build 5s Oh ...
interrupt(UART1RX_VECTOR) uart1_rx_interrupt(void) { if(timer_expired(&rxtimer)) { /* Timeout */ /* ... */ } timer_restart(&rxtimer); /* ... */ } The Stimer Library Contiki Stimer 库提供的定时机制类似于timer库,但是他的时间使用是秒,允许更长的到期时间,stimer库在时钟模块中用...
//board.c 不知道为什么老是有建议中断函数放在stm32f10x_it.c中写,但我就没见过bsp中断写在stm32f10x_it.c中的; voidSysTick_Handler(void){ rt_interrupt_enter(); rt_tick_increase(); rt_interrupt_leave(); } //clock.c voidrt_tick_increase(void) ...
The catch is your function is now part of an ISR (Interrupt Service Routine), and must be lean / mean, and follow certain rules. More to read on:HOWTO Attach InterruptCurrently supported BoardsSTM32 boards with built-in Ethernet LAN8742A such as : ...