Routing error due to blocksize mismatch on custom module development.

Hi Monika,

Generally speaking, if the input and output block sizes are fixed, I would simply put those code lines in the body of the main matlab function rather than the prebuild function.

In addition, you have to make sure to declare your prebuild function in the main part of your code.

M.name=NAME;

M.preBuildFunc=@custom_module_prebuild_func;

Have you put a breakpoint on your prebuild function to make sure it is getting executed?

Gary

Hi Monika,

I created a new custom module and added the prebuild function as shown below.  This changes the module's output blocksize to 67.  Let me know if this works for you.

function M= BlockSize_module(NAME)

% M = BlockSize_module(NAME)

% Copies input pin data to the output pin.

%

% Arguments:

% NAME - name of the module

%

% AudioWeaverModule [This tag makes it appear under awe_help]

M=awe_module('BlockSize', 'Copies input wire to output wire');

if (nargin == 0)

return;

end

M.name=NAME;

M.defaultName='BlockSize';

M.preBuildFunc = @blockSize_prebuild;

% Add input and output pins with no data or size restrictions

PT=new_pin_type([], [], [], '*32', []);

add_pin(M, 'input', 'in', 'Input signal', PT);

add_pin(M, 'output', 'out', 'Output signal', PT);

% ----------------------------------------------------------------------

% Code generation details

% ----------------------------------------------------------------------

awe_addcodemarker(M, 'processFunction', 'Insert:\InnerBlockSize_Process.c');

awe_addcodemarker(M, 'discussion', {'Copies the input to the output. '});

% ----------------------------------------------------------------------

% Module browser information

% ----------------------------------------------------------------------

M.moduleBrowser.path = 'Third Party';

M.moduleBrowser.image = '../images/BlockSize.bmp';

M.moduleBrowser.searchTags = 'pass thru through copy';

return;

function M = blockSize_prebuild(M)

numPins = length(M.outputPin);

for i = 1:numPins

M.outputPin{i}.type.blockSize = 67;

end

return;

Thanks,

Gary

Hi Monika,

Please also see this forum post.  If you use a blank prebuild function, then your output pins should behave as they were declared.  Without a prebuild function (even a blank one), they are inheriting the values from the corresponding input pins.

Incorrect Output Pin Channel Count | DSP Concepts

Thanks,

Gary