Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Component is outside master's address range

Hi, I have 2 Avalon MM Master components and 1 Avalon MM Slave. If I connect them together - to one slave I get error: Error: System.stream2eth.avalon_master: DM9000A.s1 (0x11048..0x1104b) is...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

First the slave seems to cover a 4 byte space, so the master would need at least a 2-bit address to cover it (from the master side the address is always a byte address). Second, your slave is currently mapped at the address 0x11048, so the master would need at least 17 bits on its address vector to properly address the slave.

You need a wider address bus on your master. I always use 32-bit address buses on my masters to avoid those kind of problems.