修改stm32f407 tim14的ccr1,但是占空比不变?
修改stm32f407 tim14的ccr1,但是占空比不变
STM32F723ZET6 定时器输入捕获通道的GPIO不能上拉
stm32f10x_tim.h文件编译错误?
PWM输出
stm32用tim输出pwm似乎先使能一次cen再设置cnt才有用?
关于定时器输出比较问题
stm32f303RE PWM输出波形变形
在STM32F407上使用DMA给TIM2的CCR4写值,输出固定个数PWM波个数时,遇见了CCR4的高位与低位同时被写入相同的值
NUCLEO-U575ZI-Q板中例程TIM_InputCapture的相关问题
Low-speed external clock generated from a crystal/ceramic resonator
The low-speed external (LSE) clock can be supplied with a 32.768 kHz crystal/ceramic resonator oscillator. All the information given in this paragraph are based on characterization results obtained with typical external components specified in Table 29. In the application, the resonator and the load capacitors have to be placed as close as possible to the oscillator pins in order to minimize output distortion and startup stabilization time. Refer to the crystal resonator manufacturer for more details on the resonator characteristics (frequency, package, accuracy).
晶体/陶瓷谐振器产生的低速外部时钟
低速外部(LSE)时钟可配备32.768 kHz晶体/陶瓷谐振器振荡器。本段中给出的所有信息均基于表29中规定的典型外部元件的特性化结果。在应用中,谐振器和负载电容器必须尽可能靠近振荡器引脚,以最小化输出失真和启动稳定时间。有关谐振器特性(频率、封装、精度)的更多详情,请咨询晶体谐振器制造商。
手册上好像有这么说,你好 ,可以给个咨询的QQ吗,谢谢
stm32L476开发板
看过了,说是从ETR或者TI引脚对应引进来,看了感觉好像又不太行,寻求大佬帮助
好的 时钟树我试过可以接外部的32K,我试试用LPTIM产生下方波,谢谢