esptool.py 文件源码

def __init__(self, port=0, baud=ESP_ROM_BAUD):
        self._port = serial.serial_for_url(port)
        self._slip_reader = slip_reader(self._port)
        # setting baud rate in a separate step is a workaround for
        # CH341 driver on some Linux versions (this opens at 9600 then
        # sets), shouldn't matter for other platforms/drivers. See
        # https://github.com/themadinventor/esptool/issues/44#issuecomment-107094446
        self._port.baudrate = baud