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Altera_Forum
Honored Contributor
17 years agoHi,
I am not sure if this is going to be helpful. According to my old experience, the avalon bridge only operates in byte addressing mode(data bus itself can be variable). Thus you need to discard some LSBs of address as follows: avalon datawidth bridge datawidth discard address bits 32 ........................32................... 2 LSB bits 32 ....................... 16................... 1 LSB bit 32 ........................8....................... none Nios aligns addresses from byte to byte. Thus I expect the address to move from 0 to 1 to read two bytes across the bridge if your avalon datawidth is 16.