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Altera_Forum's avatar
Altera_Forum
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13 years ago

using Dual Port Memory with simple Nios II Qsys system

Hi all, I created a Qsys system with an internal Onchip memory dual port RAM (internal port s1, and exported port s2) I would like to be able to write data from s2 (my test bench) and read data ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

If onchip_memory2_0 is already connected to nios data master port, you simply can change this linker configurations from memory_points to onchip_memory2_0 and rebuilld.

Instead if onchip_memory2_0 is connected to nios instruction master only, while memory_points is connected to nios data master only, you first need to add a data master connection to onchip_memory2_0 (however keep connection to memory_points!).

Then you must rebuild all, I mean Qsys system, Quartus project, bsp and Nios software.

In case onchip_memory2_0 is not big enough to store both code (.text) and data sections, you'd have to add another onchip memory block and map sections there.