Honored Contributor
Honored ContributorThat is exactly what the module did what i tried to replace by the tristate bridge.
If you have a 32-Bit connection to the avalon and a 8-Bit connection you must look at the byteenable signals which bit 0-7 8-15 16-23 24-31 are currently selected and out of this create the two missing addresslines to address to according bytes. 00 01 10 11. Furthermore you have to create out of a 16 or 32 bit access 2 or 4 8-Bit access. This and the generation of the missing address lines makes it a bit complicated. even more with timing (waitstates) But i thought that such a tristate bridge does this and i do not have to bother about that anymore. Maybe somebody from Altera or any other nios-expert can tell us right out of his head if this is what this bridge does or not. A side note here... the tristate bridge has only 8-bit avalon-tristate-slaves. I will try it with nios2_5.0.1 i have received from our sales office. today or on monday. i have to setup the ide for this purpose as well
