device.py 文件源码

def ai_max_multi_chan_rate(self):
        """
        float: Indicates the maximum sampling rate for an analog input
            task from this device. To find the maximum rate for the
            task, take the minimum of **ai_max_single_chan_rate** or the
            indicated sampling rate of this device divided by the number
            of channels to acquire data from (including cold-junction
            compensation and autozero channels).
        """
        val = ctypes.c_double()

        cfunc = lib_importer.windll.DAQmxGetDevAIMaxMultiChanRate
        if cfunc.argtypes is None:
            with cfunc.arglock:
                if cfunc.argtypes is None:
                    cfunc.argtypes = [
                        ctypes_byte_str, ctypes.POINTER(ctypes.c_double)]

        error_code = cfunc(
            self._name, ctypes.byref(val))
        check_for_error(error_code)

        return val.value