How can I mux an AvalonMM Bus (VIP_VFR -> 2x SDRAM)

Hello and thanks for your replies.

I want to switch without the slave port, because I got timing problems while switching with it. To explain that: I am not just switching the FrameReader, I simultanious switch a selfwritten module, that creates the frame in sdram. So I will have to switch the two modules at the exact same moment. Also I will get more things to consider that way. For example I will have to monitor for the FrameReader to finish befopre I can switch that way. I am not using any C-Code, I am configurating the FrameReader from another VHDL-Module with Avalon-Bus at the moment. So Kevins idea would be some kind of troublesome I believe.

@jakobjones: Unfortunately that switch is not that easy to made. I have already programmed a switch to switch my selfwritten module. There I can just connect all wires I require and switch them like in my first sketch. As I tried to explain, for the FrameReader this does not work just to connect every required wire, because the SOPC-Builder seems to recognise when a module needs piplined/burst capabilities. I got stuck in the programming of this switch many times now. The error I get from SOPC-Builder says: "Slave with readdatavalid signal must support at least 1 pending read" Can you suggest/explain what I have to implement, to achieve pending read support in the module? Perhaps this seams like an easy problem to you, but I don't get it.

I have also attached another sketch to make the problem a bit clearer (I hope it gets clearer from that). The design is inspired by the FrameBuffer.

Thanks in advance.