Forum Discussion

mke's avatar
mke
Icon for New Contributor rankNew Contributor
4 years ago

Qsys Avalon bus symbol width

Hi, I have a question regarding the Avalon bus symbol width. First, I have a custom IP with Avalon bus data width 576 bits. And I connected Avalon BFM to it in order to simulate it and here is ...
mke's avatar
mke
Icon for New Contributor rankNew Contributor
4 years ago

Additional:

I played a bit with the system with just two BFM-s connected together. If I use 8-bit symbol width, 64 symbols, 32-bit address, and addressing mode as "word" for both master and slave then everything is fine.

But if I change the symbol width to 9 (both master and slave) I have to use a 33-bit address for the master while the slave did not change, except the symbol width. Qsys complains about masters insufficient address range otherwise. Could you please explain to me what I am overlooking here?

BR, Madis