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[Nios II] Handle different sizes of SDRAM with the same software

Altera_Forum
Honored Contributor I
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Hi, 

 

I use the nios ii processor in my application. For the moment, I use it with an 256Mb SYNCHRONOUS DRAM with 12 Row Address Input and 9 Column Address Input.  

 

My application is evolving and I need a bigger memory. So I selected an 512Mb SYNCHRONOUS DRAM with 13 Row Address Input and 9 Column Address Input.  

 

I often make software update (with bootloader) of my installed product base and I don't want to deal with two different software.  

 

I can get the information of which RAM I have but I have not enough size in my EPCS to store two HW and software (to handle different sizes of RAM) + HW and software for the bootloader 

 

Is it any way to select the RAM size in nios software at the code execution ?  

 

If is not, have you any idea about my problem ? 

 

Thanks for your help. 

Sorry for my poor English. 

 

Flandroid
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