ir.py 文件源码

def __init__(self,pno=4,bsz=1024,dbgport=None):
        self.BUFSZ=int(pow(2, math.ceil(math.log(bsz)/math.log(2))))
        self.MASK=self.BUFSZ-1
        self.pin=pno
        self.ir=Pin(pno,Pin.IN)
        self.buf=array.array('i',0 for i in range(self.BUFSZ))
        self.ledge=0
        self.wptr=0
        self.rptr=0
        self.dbgport=dbgport
        if dbgport is None:
            self.dbgport=DummyPort()
        self.dbgport.low()
        # cache ticks functions for native call
        self.ticks_diff = time.ticks_diff
        self.ticks_us = time.ticks_us
        self.start()