Post #2272317
2026-05-04 23:14 UTC
@whitequark@social.treehouse.systems @penguin42@mastodon.org.uk ah, does the FPGA have to be programmed every time the system powers up? I am extremely not-knowledgeable about this
Replies (1)
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@whitequark@social.treehouse.systems 2026-05-04 23:16
@regehr@mastodon.social @penguin42@mastodon.org.uk yep! it has a little state machine which can read out the bitstream from the flash. it has like a half dozen ways you can program it but the basic idea is that the FPGA has internal SRAM with a very custom structure organized in frames, and you have several ports through which these frames can be loaded (JTAG, SPI initiator, SPI peripheral, internal reconfiguration port, some others) at power up the SRAM has nothing inside and it has to be loaded somehow