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Altera_Forum
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11 years ago

Avalon 8 bit with Nios 32 bit possible?

It is possible to create a component (ex. UART) with avalon MM slave interface with 8 bit data width and use it with Nios II with 32 bit bus? I tried and compile fine but Nios II don't start on re...
Altera_Forum's avatar
Altera_Forum
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11 years ago

It actually looks as though the bus width adapter is asserting 'byte enable' but not asserting 'read' during the extra cycles.

The nios is definitely documented as always doing 32bit reads (ie asserting all 4 byte enables)

Of course that might have changed - I don't remember us tracing them.