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不完全确定为什么我不断收到此错误queueOutputData

data 参数必须包含会话中每个输出通道的一列。

我只有一个输出通道,为什么我还需要列?任何帮助将不胜感激。

%Initial variables

%set stimulation protoccol
t = 0:1/fs:stimlength;
data = sawtooth(2*pi*freq*t,0.5);
data=data+1;
data=data*ampli;


%set video object, set frames per trigger

vid = videoinput('dalsa', 1, 'C:\Users\IOS User\Documents\MATLAB\IOS\D_DS-21-       01M60_12b_SC.cca');
set(vid,'FramesPerTrigger',FRAMERATE*length);

%Set stim callback halfway through acquisiton
set(vid,'FramesAcquiredFcnCount', FRAMERATE*length/2+1);
set(vid,'FramesAcquiredFcn', {'stimulate'});


%Create session object and save it to the variable, ao
ao = daq.createSession('ni');

ao.Rate = 10000;

%Add an analog output 'Voltage' channel:
ao.addAnalogOutputChannel('Dev1',0,'Voltage')

ao.queueOutputData(data);
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1 回答 1

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您的data变量是一个行向量,这意味着它有很多列。做就是了:

ao.queueOutputData(data.');
于 2013-10-31T21:29:53.147 回答