openmv的外部中断怎么写，急急急！

[l46w]

def callback(line):
print("line =", line)
就用这个函数吗

[kidswong999]

https://docs.singtown.com/micropython/zh/latest/openmvcam/library/pyb.ExtInt.html

def callback(line):
    print("line =", line)
    
extint = pyb.ExtInt(pyb.Pin("P0"), pyb.ExtInt.IRQ_FALLING, pyb.Pin.PULL_UP, callback)

while True:
    pass