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[SOLVED] Switching between more Bit-streams in single FPGA

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Mai89

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Is there any ability to switch between bitstreams in Single FPGA?
can i store these bitstrems on FPGA's memory and then switch between them?
 

Hi,

I may be wrong, but isn`t a bitstream a data transfer without dedicated start and end?

If so:
can i store these bitstrems on FPGA's memory
Generally No, because an FPGA has only limited amount of memory.
Yes, only if you specify the maximum amount of data you want to store in your memory.

Then you also need to define the memory topology.
FIFO coud be useful.
Again you need to decide: when FIFO is full, do you dismiss the oldest or the newest data?

As so often:
A development should start with clear requirements. With values and units.
A "bitstrem" could be anything from a morse code up to a gigabit telecommunications interface.
The whole idea is not clear. Draw a sketch about your idea. It tells more than a lot of words.

Klaus
 

    Mai89

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Which FPGA?
For SRAM-based FPGA's which load the bitstream from an external serial flash, it is normally possible to switch between bitstreams.
 

    Mai89

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can i store these bitstrems on FPGA's memory and then switch between them?

As mentioned in the above post, you can store the bitstreams in an external flash.
On SRAM based FPGA internal memory (e.g- Xilinx FPGA), no.
 

    Mai89

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