how to output last sample of every 16 samples

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byb
byb 2018-9-10
评论： Walter Roberson 2018-9-18
I have to store 16 samples of ADC output and then use only last sample of every 16 sample to be the display on scope, How I do it in Simulink only please???
I have used buffer to create store the 16 samples and the took average to display only one signal in scope but that is not as accurate as it would be to get last signal for every 16 signal to be displayed.

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Walter Roberson
Walter Roberson 2018-9-15
You can potentially convert your samples into frames and then index into the frames https://www.mathworks.com/help/dsp/ug/sample-and-frame-based-concepts.html or you can downsample the frame. Or you can just downsample or here
Selecting can be done https://www.mathworks.com/help/simulink/slref/selector.html

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JohnGalt
JohnGalt 2018-9-10
Not sure if I understand the question correctly but if you have an array
myArray = 1:81;
you can get every 16th value using:
myArray(16:16:end) % gives answer: = 16 32 48 64 80
the notation is (startingIndex:stepSize:lastIndex)

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