FPGA Reconfiguration using 2 processors.

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Discussion Overview

The discussion revolves around the use of two processors for FPGA reconfiguration, specifically exploring methods of partial reconfiguration using both a PowerPC (PPC) hard core and a MicroBlaze soft core processor. The scope includes theoretical and procedural aspects of dynamic reconfiguration on an FPGA board.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant has been working on reconfiguration using a single soft core for eight months and seeks assistance on using two cores.
  • Another participant questions the clarity of the original inquiry, particularly regarding the nature of reconfiguration and whether it involves communication between the cores or dynamic loading of FPGA configurations.
  • The original poster clarifies that the reconfiguration is done dynamically without resetting the system, mentioning the use of a controlling code on the soft core to monitor bit file execution.
  • The original poster expresses interest in exploring different methods of partial reconfiguration using both the PPC and MicroBlaze processors, or even two soft cores if PPC is not feasible.
  • One participant admits to having no experience with partial reconfiguration, indicating a lack of expertise in this area.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus, as there are questions about the clarity of the original inquiry and differing levels of experience with partial reconfiguration.

Contextual Notes

The discussion lacks detailed definitions of terms such as "reconfiguration" and "dynamic loading," and there are unresolved questions regarding the communication between the two processors and the specific methods of partial reconfiguration being considered.

badfate
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Hello,

I've been working on the topic since 8 months and different types of reconfiguration using single soft core is done. I need some help on the procedure as well as theory about using 2 cores.

On the FPGA board that i use, there is PPC hardcore and microblaze softcore.
 
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Not sure what you are asking. Are you asking about communication between the two cores (one in fpga and one external)? I'm not sure why you are referring to reconfiguration. I understand reconfiguration as loading a new fpga configuration. Are you doing this dynamically? Again, Your question is not clear.
 
Yes, its done dynamically(without resetting the system, you change a command on hyperterminal/ using a controlling switch on FPGA or give some delay so that the bit file hence functionality changes automatically).

I'm using soft core processor for writing the controlling code that monitors the bit file execution on FPGA. But there exists PPC hardcore on FPGA itself which i haven't used. I want to explore different methods of partial reconfiguration using both the processors.

I ll be glad if anyone can help me with even 2 soft cores if not PPC.

BTW, the board I'm using is Xilinx, virtex 5 s/w, 12.4
 
I have never done any partial reconfiguration. Sorry
 

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