How to transfer data from one microblaze to another using FSL links correctly?

[Hmidi slim]

I'm using atlys LX45 and I wrote to C programs.I want to transfer data from one side to another but when I debug one of the 2 programs using getfsl I didn't receive any informations.So how can I fix this problem?? 

[Albi]

Hello!

Please specify, whether you want to transfer data between two Microblaze processors on the same FPGA (in this case we are speaking about a dual-processor system), or between two different boards, each running a separate Microblaze system.

In the first case, it is recommended to use the Mailbox/Mutex mechanism between two processors sharing some address space, please look on the Xilinx website for further documentation on dual-processor systems.

 

Note that a FSL bus is a stream bus, usually transferring data between the Microblaze processor and a peripheral, being on the same chip. 

Therefore, in the second case, it is recommended to use some other protocol instead of FSL, such as an Ethernet link (to transfer raw data) or some other protocol using the High-Speed Expansion connector.

Regards

Albert