Hallo, I'm trying to create a memory controller based on a state machine to send to Microbalze signals like ram_data_out, read_acknowledge, write_acknowledge, etc...
I have connected it to OPB Bus.
My trouble is that I don't have a clear idea of the steps to read, write, read_acknowledge, write_acknowledge, etc...
In example: when microblaze must read data:
States:
0 -> 1) enable RAM
1 -> 2) assign address that comes from bus to ram address and assign ram_data_out to bus_data
2 -> 3) read_acknowledge = 1
3 -> 0) disable ram
Is it correct?
Where I could find a good documentation about it?
Many Thanks Marco