i have data of 468 by 8 char type, I need to modulate it using qpsk modulator.

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Sajid Sarwar 2018-11-7

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https://ww2.mathworks.cn/matlabcentral/answers/428561-i-have-data-of-468-by-8-char-type-i-need-to-modulate-it-using-qpsk-modulator

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srb =

468×8 char array
    '11111110'
    '00000000'
    '00000000'
    '00000001'
    '00000000'
    '00000000'
    '00000000'
    '00000001'
    '00000000'
    '00000000'
    '00000001'
    '00000000'
    '00000000'
 ... 400+ rows here
    '00000000'
    '00000000'
    '00000001'
    '00000000'
    '00000000'
    '11111111'
    '11111111'
    '00000000'
qpskMod = comm.QPSKModulator('BitInput',true);
qpskTx = qpskMod(srb);

and got the following error

"Changing the data type on input 1 is not allowed without first calling the release() method."

kindly guide me

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Stephen23 2018-11-7

@Sajid Sarwar: today I formatted your code for you. In future you can do it yourself: select the code text, click the {} Code button, ensure an empty trailing line.

Also note that posting nearly 500 lines of a numeric vector is likely to discourage people from reading your question.