HDL Coder supports mapping to RAMs in two ways: 1. Manual mapping using the hdl.Ram system object 2. Automatic mapping from MATLAB code
If you know exactly how the RAM should be connected, it may be better to use the manual approach. When using the hdl.Ram system object, you must fully specify all the port connections, including read-address, write-address, write-data and write-enable. See the documentation for an example of using hdl.RAM, but the following is a snippet of usage:
persistent hRam; if isempty(hRam)
hRam = hdl.RAM('RAMType', 'Dual port');
end
% execute single step of RAM
[~, ramRdDout] = step(hRam, ramWriteData, ramWriteAddr, ramWriteEnable, ramReadAddr);
However, you can also do this with the automatic approach. If you want to control using an enable line, all you may want to do is put it in a conditional:
if foo_ary_enable
foo_ary(index) = write_value;
end
