Web本文代码参考正点原子例程 文章目录实验功能代码剖析HAL_Init()SystemClock_Config()delay_init()LED_Init()LED 操作函数delay_ms()WWDG_Init()中断服务函数之所以称为窗口就是因为其喂狗时间是一个有上下限的范围(窗口),你可以通过设定相关寄存器&… WebLowell, MA. $45. 1989 80+ Baseball Cards Topps Rookies and stars- Randy Johson, Gary Sheffield, Rose, Clemens, Pucket. Ipswich, MA. $299. Samsung Galaxy S 21 5G 128 GB …
HAL库配置系统滴答时钟问题
WebDec 11, 2024 · Systick定时器常用来做延时,或者实时系统的心跳时钟。. 这样可以节省MCU资源,不用浪费一个定时器。. Systick定时器就是系统滴答定时器,一个24 位的倒计数定时器,计到0 时,将从RELOAD 寄存器中自动重装载定时初值(浅画一下,大概就是这样)。. 只要不把它 ... WebNov 1, 2024 · 9个回答. 你指的是哪几个函数?. SysTick_CounterCmd();SysTick_ITConfig();SysTick_GetCounter();SysTick_GetFlagStatus();等几个函数源代码。. 你说的应该是旧版本的固件库吧,你可以在所有库文件中搜索一下。. 我目前只有新版本的固件库。. 谢谢!. 我在MDK4.1 (KEIL ... shenyang covid lockdown
STM32——独立看门狗
WebNov 20, 2024 · 1. I am trying to configure the Systick Timer to generate a 1ms interrupt. My MCU is STM32F767 and my clock frequencies are as shown below. Oscillator = HSE No PLL SYSCLK = 25 MHz AHB Prescaler = 2 HCLK = 12.5 MHz APB1 Prescaler = 2 PCLK1 = 6.25 MHz APB2 Prescaler = 2 PCLK2 = 6.25 MHz. I have configured the clock properly and … WebNov 11, 2024 · 预期应该是SysTick_CLKSource_HCLK时,1ms产生一次tick中断;当SysTick_CLKSource_HCLK_Div8时,8ms时产生一次tick中断。. 这边主要问题在于SysTick_Config这个函数。. 如上图,被框出来的位置会将时钟源位重新设置为1,这就导致了前面SysTick_CLKSourceConfig设置的时钟源无效。. 问题 ... WebSysTick and interrupt priorities are handled in the core. Whether preemption is possible also depends on how the priority groups are set up. To be fair this happens on an STM32F100, F103, and the F407 (and probably more but I haven't tested). I think this particular issue is pretty standard across all of them. spout mounted sensor faucet