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Altera_Forum's avatar
Altera_Forum
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20 years ago

instruction master address range only 256Mbyte ?

SOPC reports this message : "Address range of instruction master crosses a 256-Mbyte boundary. Not supported by Nios II tool chain" ups. http://forum.niosforum.com/work2/style_emoticons/<#...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Hello Michael,

If bit 31 of the address is set the data cache won’t be used during this access. So if you read from 0x80000000 you will get the data from 0x00000000 (not 0x80000000) directly.

Regards,

niosIIuser