帧中断程序，怎么使用帧中断程序呢？例程里的定时器中断也看不懂，求大佬指点！万分感谢

[pez3]

# 定时器控制例子
#
# 这个例子展示了如何使用回调函数和定时器

import time
from pyb import Pin, Timer

def tick(timer):            # we will receive the timer object when being called
    print("Timer callback")

tim = Timer(4, freq=1)      # create a timer object using timer 4 - trigger at 1Hz
tim.callback(tick)          # set the callback to our tick function

while (True):
    time.sleep(1000)
:loudly_crying_face: :loudly_crying_face: :loudly_crying_face: :loudly_crying_face: :loudly_crying_face: :loudly_crying_face: :loudly_crying_face: 

[kidswong999]

什么叫做“帧中断”？

[pez3]

@kidswong999 就是每一帧数据传过来后自动进入一个中断函数里面，STM32有帧中断函数