Low-Power $5 FPGA Module

Re:Low-Power $5 FPGA Module by raverbashing on Friday July 10, 2015 @09:28AM (#9863791)

I think you would be surprised to know a lot of the bigger FPGAs work exactly like that

You usually need a serial flash with the data, or load it on device boot (no persistent memory)

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Re:Low-Power $5 FPGA Module by tcas on Friday July 10, 2015 @10:54AM (#9864255)

I think almost every FPGA is like that -- I think ones that have internal flash (like the Spartan-3AN) are still SRAM based and just have a flash chip in the package as well.

The only flash based programmable logic from Xilinx/Altera are CPLDs as far as I remember.

External SPI flash is pretty cheap even at low quantity (~$0.50 at qty 1 for 2Mbit, going down to the $0.30 range for low thousands)

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Re:Low-Power $5 FPGA Module by makomk on Friday July 10, 2015 @12:12PM (#9864787)

Yeah, but FPGA dev boards usually have the required Flash chip integrated on the board rather than requiring you to supply your own.

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Re:Low-Power $5 FPGA Module by raverbashing on Friday July 10, 2015 @12:20PM (#9864861)

Of course. Because it's a dev board

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Re:Low-Power $5 FPGA Module by taralx on Saturday July 11, 2015 @12:04AM (#9868482)

True flash FPGAs do exist -- they're used when startup time is important. Microsemi has quite a few.

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Re:Low-Power $5 FPGA Module by david-given on Friday July 10, 2015 @01:15PM (#9865294)

How big is the bitstream for a device like this?

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