is the "qammod" function in communication toolbox not compatible with hdl coder in version R2013a?

7 次查看（过去 30 天）

显示更早的评论

Anuj Aggarwal 2014-3-16

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/121786-is-the-qammod-function-in-communication-toolbox-not-compatible-with-hdl-coder-in-version-r2013a

回答： Ryan Livingston 2014-4-2

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 个评论
显示 3更早的评论隐藏 3更早的评论

Walter Roberson 2014-3-20

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

Anuj Aggarwal 2014-3-20

this is the error for the above code

???The function 'qammod' is not supported for standalone code generation. See the documentation for coder.extrinsic to learn how you can use this function in simulation.

请先登录，再进行评论。

请先登录，再回答此问题。