timing.py 文件源码

def cfg_handshaking_timing(
            self, sample_mode=AcquisitionType.FINITE, samps_per_chan=1000):
        """
        Determines the number of digital samples to acquire or generate
        using digital handshaking between the device and a peripheral
        device.

        Args:
            sample_mode (Optional[nidaqmx.constants.AcquisitionType]): 
                Specifies if the task acquires or generates samples
                continuously or if it acquires or generates a finite
                number of samples.
            samps_per_chan (Optional[long]): Specifies the number of
                samples to acquire or generate for each channel in the
                task if **sample_mode** is **FINITE_SAMPLES**. If
                **sample_mode** is **CONTINUOUS_SAMPLES**, NI-DAQmx uses
                this value to determine the buffer size. This function
                returns an error if the specified value is negative.
        """
        cfunc = lib_importer.windll.DAQmxCfgHandshakingTiming
        if cfunc.argtypes is None:
            with cfunc.arglock:
                if cfunc.argtypes is None:
                    cfunc.argtypes = [
                        lib_importer.task_handle, ctypes.c_int,
                        ctypes.c_ulonglong]

        error_code = cfunc(
            self._handle, sample_mode.value, samps_per_chan)
        check_for_error(error_code)