Hello, I am trying to interface with the SPI contr...
# mpw-2-silicone
Elias Castro
02/14/2025, 1:14 AMHello, I am trying to interface with the SPI controller on the wrapper. I am struggling to understand how it works. The CPU on my physical chip is the vexRISCV, if anyone has example C code for it or any documentation it would help a lot!
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Tim Edwards
02/14/2025, 3:18 PMWhat tapeout is your chip from, and what specific issue are you having?
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Elias Castro
02/18/2025, 2:34 PMChipignite, I am just having trouble on finding documentation for how to work the SPI
Elias Castro
02/18/2025, 2:36 PMI was using this link but the information seems outdated or for a different processor as we don’t have reg_spi_data:
https://caravel-harness.readthedocs.io/en/latest/spi.html
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Matt Venn
02/19/2025, 11:59 AMWhich chipIgnite tapeout? is it one of the ones on this page? https://efabless.com/shuttle-status
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Elias Castro
02/23/2025, 8:01 PMThe CI2406 Shuttle
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Matt Venn
02/24/2025, 10:56 AMhave you checked the docs? https://github.com/efabless/caravel_board/tree/main/firmware/chipignite
Matt Venn
02/24/2025, 10:57 AMstart by getting the blink demo to work
Matt Venn
02/24/2025, 10:57 AMyou can also check the demos in the demos directory
Matt Venn
02/24/2025, 10:58 AMand this channel is for mpw2 silicon which has very specific faults and needs very careful workarounds to get working. You're better off posting in mpw-6plus-silicon for variants that are > mpw6
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