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Pointer access from qsys custom component

Honored Contributor II


My nios code is running on a DDR 

I have also a custom component connected to the DDR 

The purpose is to define a pointer register in DDR and to overwrite its value from the custom component through its avalon mm bus 


So, if i define a pointer on the c code . lets assume its address will be 0x800. 

Which address should be used on the avalon mm bus of the custom component in order to do that ?  


Thanks in advance
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