is the "qammod" function in communication toolbox not compatible with hdl coder in version R2013a?
11 views (last 30 days)
Show older comments
i am trying to generate VHDL code of 16 QAM MODULATION from matlab code using HDL CODER. my code is
function mod_data =qammod(data_in_sym,M);
n=8
M=16
no_of_rows=n/4; no_of_bits_in_symbol=4;
data_in=[1;1;0;1;0;1;1;0];
data_instp=reshape(data_in,no_of_rows,no_of_bits_in_symbol);
data_in_sym=bi2de(data_instp);
now when i use the workflow adviser the following erroe comes:
??? Output argument 'mod_data' is not assigned on some execution paths.
Error in ==> qammod Line: 1 Column: 20
please point out the mistakes and give its solution.
5 Comments
Walter Roberson
on 20 Mar 2014
I am having difficulty determining at the moment whether qammod() is supported for code generation. It appears to me that there is an alternate coding that is supported; see http://www.mathworks.com/help/comm/ug/digital-modulation.html#fp59559
Answers (1)
Ryan Livingston
on 2 Apr 2014
I'm not certain of your needs but the System Object comm.RectangularModulator is supported for HDL Coder:
http://www.mathworks.com/help/hdlcoder/ug/system-objects.html#bteb8b9-1 http://www.mathworks.com/help/comm/ref/comm.rectangularqammodulator-class.html
It may allow you to achieve what you need.
0 Comments
See Also
Categories
Find more on Modulation in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!