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Implementing onchip dual access ram

Altera_Forum
Honored Contributor II
783 Views

Hi, 

 

I am trying to implement an onchip memory as a framebuffer. Although I like to do some image improvement using vhdl code. 

 

My problem is, when I add the support for dual access ram in the SOPC Builder, i get an error that both slaves have the same adress range, as it should be. 

 

So could you give me a hint, where I am wrong? 

 

Thanks a lot for your help 

 

Best wishes
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3 Replies
Altera_Forum
Honored Contributor II
87 Views

Are both slaves connected to the same master? In that case you'll have this error. The fabric can't know what slave to connect to.

Altera_Forum
Honored Contributor II
87 Views

No, one is connected to the CPU Data and Instruction master, the other one is connected to the "External Bus to Avalon Bridge".

Altera_Forum
Honored Contributor II
87 Views

 

--- Quote Start ---  

 

My problem is, when I add the support for dual access ram in the SOPC Builder, i get an error that both slaves have the same adress range, as it should be. 

 

--- Quote End ---  

 

 

Did you try to set manually different address range for each port?
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