Code generation from level-2 s-function without tlc-file

4 次查看（过去 30 天）
Bettina
Bettina 2013-12-9
评论： liangjunfu 2023-5-26
Hello,
I`m using R2012b. I have a problem generating code for a xpc-target system. I have written a level 2 Matlab S-function in which I have called a c-code (which I have mex-ed before). I can call this C-Code inside the Simulink Matlab S-Function and it runs fine on the normal mode.
But now I have tried to compile this model to be run in a xpc-target system. I have added the corresponding c-file by parameters-> code generation -> custom code -> include list of additional -> source file = the c-file and -> libraries = the dll-file and the mexw64-file. But when building the model, I get the error: The corresponding "xxxx.tlc" file for the Matlab S-function "xxx" in block "xxx" must be located in the current working directory, the Matlab S-function directory, or the directory "xxx\tlc_c".
It is not possible to automatically create a tlc-file, when using a Matlab S-function. Is it really necessary to write the tlc-file manually? If yes, for what did I have to write the S-function? Could I call a C-code (legacy code) in an tlc-file?
Thanks in advance for any answers!
Bettina
  1 个评论
Or Hirshfeld
Or Hirshfeld 2015-2-19
did you found any solution to by pass full coding in TLC because i have similar problem where i have level 2 s-function and i want to run the model in External mode in Windows Real-Time target

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Rajiv Ghosh-Roy
Rajiv Ghosh-Roy 2013-12-10
In order to use this with code generation, everything you call must be in C (i.e. no M). The only exception would be if you were using a MATLAB function block.
In your case, the myfunc and myconstraint MATLAB files must also have a C equivalent. Without this, it would be hard to proceed.
  1 个评论
Bettina
Bettina 2013-12-17
Thanks, I am then working to translate the MatLab M-S-Function into C-Code for the C-S-Function. Happy X-Mas!

请先登录，再进行评论。

更多回答（1 个）

Rajiv Ghosh-Roy
Rajiv Ghosh-Roy 2013-12-9
You can either write a C S-function, or add a simple TLC file for your MATLAB S-function. The TLC file could be as simple as calling an external function from your external C file.
Note that you will have to call LibAddToModelSources in order to inform the code generator of your external C-file, and also the external function call should be a C-style call, not a mex-file.
  2 个评论
Bettina
Bettina 2013-12-10
As I am not so firm with C S-Functions (or C-programming in general), I had used the M S-Function. the write manually a TLC-file is not that easy, as I have to integrate somehow 2 subfunction, which I have until now called as matlab m-files.
What kind of language have the TLC-files? Is this C or can I also use MatLab commands?
I need to translate the following M S-function, maybe someone can help me with the corresponding TLC translation:
function msfuntmpl_NLopt_V7(block)
setup(block);
%endfunction
function setup(block)
block.NumDialogPrms = 1;
block.DialogPrmsTunable = {'Nontunable'};
block.NumInputPorts = 1;
block.InputPort(1).Dimensions = 2;
block.InputPort(1).DatatypeID = 0;
block.InputPort(1).Complexity = 'Real';
block.InputPort(1).DirectFeedthrough = false;
block.InputPort(1).SamplingMode = 'Sample';
block.NumOutputPorts = 2;
block.OutputPort(1).Dimensions = 2;
block.OutputPort(1).DatatypeID = 0;
block.OutputPort(1).Complexity = 'Real';
block.OutputPort(1).SamplingMode = 'Sample';
block.OutputPort(2).Dimensions = 1;
block.OutputPort(2).DatatypeID = 0;
block.OutputPort(2).Complexity = 'Real';
block.OutputPort(2).SamplingMode = 'Sample';
block.SampleTimes = [0 0];
block.SetAccelRunOnTLC(false);
block.RegBlockMethod('PostPropagationSetup', @DoPostPropSetup);
block.RegBlockMethod('InitializeConditions', @InitializeConditions);
block.RegBlockMethod('Outputs', @Outputs); % Required
% end setup
function DoPostPropSetup(block)
block.NumDworks = 1;
block.Dwork(1).Name = 'x0';
block.Dwork(1).Dimensions = 2;
block.Dwork(1).DatatypeID = 0;
block.Dwork(1).Complexity = 'Real';
block.Dwork(1).UsedAsDiscState = true;
block.NumDworks = 2;
block.Dwork(2).Name = 'xopt';
block.Dwork(2).Dimensions = 2;
block.Dwork(2).DatatypeID = 0;
block.Dwork(2).Complexity = 'Real';
block.Dwork(2).UsedAsDiscState = true;
block.NumDworks = 3;
block.Dwork(3).Name = 'fmin';
block.Dwork(3).Dimensions = 1;
block.Dwork(3).DatatypeID = 0;
block.Dwork(3).Complexity = 'Real';
block.Dwork(3).UsedAsDiscState = true;
% end DoPostPropSetup
function InitializeConditions(block)
global opt
opt.algorithm = block.DialogPrm(1).Data;
opt.lower_bounds = [-inf, 0];
opt.min_objective =@(x) myfunc(x);
opt.fc = {(@(x) myconstraint(x,2,0)), (@(x) myconstraint(x,-1,1))};
opt.fc_tol=[1e-8, 1e-8];
opt.xtol_rel = 1e-4;
block.Dwork(1).Data = block.InputPort(1).Data;
%end InitializeConditions
function Outputs(block)
global opt
[block.Dwork(2).Data, block.Dwork(3).Data] = n_optimize(opt, block.InputPort(1).Data); % Aufruf der Optimierungsroutine
block.OutputPort(1).Data = block.Dwork(2).Data;
block.OutputPort(2).Data = block.Dwork(3).Data;
% end Outputs
"myfunc" and "myconstraint" are M-Files, while "n_optimize" calls the C-Code (mexed before).
liangjunfu
liangjunfu 2023-5-26
How did you solve this problem? I recently encountered the same problem.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Block and Blockset Authoring 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by