Give initial value to the "AXI4 Random Access Memory" block in simulink

I wanted to try out the newly introduced simulink block "AXI4 Random Access Memory". In my design I use the DDR3 simulation model which I copied from one of example designs. I wanted to replace it with this new block but I couldn't find any option to initialize the memory with initial data.

Is there no way to initialze the memory? That seems like a cruical functionality for a memory block in simulation.

[Bharath Venkataraman]

Could you please give more information on what block you are using? Where did you copy this block from?

The following command may be helpful in getting the information - click on the block first so that gcb is set:

BlockType = get_param(gcb, 'BlockType')

[ALi Falahati]

The block in the screenshot is taken from one of the MATLAB examples related to https://www.mathworks.com/help/soc/ug/model-design-for-axi4-master-interface-generation.html

Simplified AXI4 Master interface.

But the block I have a question about is this

https://www.mathworks.com/help/soc/ref/axi4randomaccessmemory.html

Answer 1

[Govind KM]

Hi @ALi Falahati,

Functionality for memory initialization and logging has been added to the AXI4 Random Access Memory block in MATLAB R2023a. To initialize the memory, select Initialize memory content in the block parameters, and specify the initial value in the Initial value box. I would suggest upgrading to MATLAB R2023a or later to make use of these parameters.

Kindly refer to the following documentation for more information about the block parameters, along with newer functionality such as memory logging:

https://www.mathworks.com/help/soc/ref/axi4randomaccessmemory.html#mw_3cca80ea-71f2-44cc-aa7e-4cc16ef05581

Hope this resolves the issue.