HDL Coder RAM generation for an array

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Arun
Arun 2014-12-2
回答： Kiran Kintali 2021-4-6
will hdl coder generate ram for 2 dimension array if isempty(my_ary)
my_ary = zeros (10,1000)
end
new_value = [1:10];
%later assigna a column in my_ary as follows
my_ary(:,2) = new_value;
Will hdlcoder generate 10 different RAM blocks

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回答（1 个）

Kiran Kintali
Kiran Kintali 2021-4-6
RAM mapping is an area optimization that maps storage and delay elements in your MATLAB® code to RAM. Without this optimization, storage and delay elements are mapped to registers. RAM mapping can therefore reduce the area of your design in the target hardware.
You can map the following MATLAB code elements to RAM:
  • persistent array variable
  • dsp.Delay System object™
  • hdl.RAM System object
See demo example how to use persistent arrays and MAP them to RAMs
>> mlhdlc_demo_setup('heq')
% this table shows code samples for different choices
web(fullfile(docroot, 'hdlcoder/ug/ram-mapping-comparison-for-matlab-code.html?s_tid=doc_srchtitle'))

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