cpu 卡 分段读取数据

根据 总字节和每次读取的大小来 分段

def getReadCommand():
    readByteLen = 100
    totalByteLen = 218
    p1p2MaxLen = 4
    hexForecourt = hex(readByteLen)
    hexForecourt = hexForecourt[2:]
    count = math.ceil(totalByteLen / readByteLen)

    for i in range(count):
        comonad = "00B0"
        addCount = i * readByteLen
        lastCount = totalByteLen - addCount
        p1p2 = hex(2 + addCount)
        p1p2 = str(p1p2[2:])
        p1p2Str = str(p1p2).zfill(p1p2MaxLen)
        if lastCount > readByteLen:
            commands = comonad+p1p2Str+hexForecourt
        else:
            commands = comonad + p1p2Str + str(lastCount).zfill(2)

        print(commands)