Ml310(xc2vp30) with ppc 405,multi processor share memory?

Question

Hello,everyoneI am doing my thesis on the ML310 board..it's so hard.Lots,lots of pdf for reading.. :!:My first target is transfer data between processors using the FPGBlock-SelectRAM (BRAM).1.-----Prove data flow between the processors (from processor A tprocessor B and vice versa)After BSB, I open up the PBD file, see that the two ppcs have alreadconnected with brams..plbs..ocm-ctrl.But how could I prove the data flow.. Shall I write a short C tesprogram in EDK, and saw the result with hyper terminal? or shall write a vhdl program to see the result with modelsim..confusing.. :(2.-----If possible make also use of the Rocket-IO (MGT)  why should I use the rocket-IO..is that the same procedure to provthe data flow with rocket I/O  as with Brams...Great appreciate your help!!!!!!!!! :

Wing Fong Wong · Accepted Answer

Me too! I'm also using that same board. :) Sorry but I don't really have anything useful to add other than I sympathise with you.-- Wing Wong.Webpage:

Nju Njoroge · Answer

I have done something like this in the past on a ML310 board. I'd go with option #1. I would write a simple C program. To get something working quickly, write two versions of the simple program--one for processor 0 and another for processor 1. You create two software projects in XPS and have the linker script put the programs in two different BRAM's. The shared data must be in the same BRAM obviously.

Sample Program

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-Processor 0 writes to location x with value y. Meanwhile, Processor 1 is in a while loop reading location x. If mem[x] == y, then Processor 1 writes mem[x]

Ml310(xc2vp30) with ppc 405,multi processor share memory?

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