MATLAB: What is the difference between wr_dout and r_dout ports of a Dual-port RAM in the hdldemolib? Please give a detailed explanation (if possible with an example)

dual port ramhdlHDL Coderhdldemolibportramsimulink

The link to the Dual-port RAM is here.

Dear community members, any help is appreciated. Thank you.

Best Answer

This is straightforward. The Dual Port RAM has two address inputs; wr_addr and rd_addr. wr_dout is the contents of the address wr_addr, and rd_dout is the contents of the address rd_addr.

The documentation is quite short and clear as to the specific behavior of all the ports, and tradeoffs between the various RAM blocks.

 >> web(fullfile(docroot, 'simulink/slref/dualportram.html'))

Related Solutions

MATLAB: Ho we run a section code one time in Matlab function block ? In below body I dont want assigning zeros in Dout after 1st iteration. This matlab function block run 100 times and problem is it every time set zeros in dout.

You can make Dout persistent so it preserves the value between runs, like this

persistent Dout;
if isempty(Dout)
  Dout = zeros(1,N);
end

HTH

MATLAB: About hdlsllib/HDL RAMs blocks

hdl.RAM is a system object and all RAM system blocks can be configured within variations of the system object. They have identical behavior w.r.to regular RAM blocks but have additional capabilities apart from being able to use hdl.RAM from MATLAB to HDL workflow.

You can find the details of the block here. Faster simulaiton performance for large RAMs, ability to specify initial values for the RAM contents and RAM bank capability with vector address and data signals.

web(fullfile(docroot, 'simulink/slref/dualportramsystemsimpledualportramsystemsingleportramsystem.html'))

web(fullfile(docroot, 'hdlcoder/ref/hdl.ram-system-object.html'))

Best Answer

Related Solutions

MATLAB: Ho we run a section code one time in Matlab function block ? In below body I dont want assigning zeros in Dout after 1st iteration. This matlab function block run 100 times and problem is it every time set zeros in dout.

MATLAB: About hdlsllib/HDL RAMs blocks

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