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| 0107-2023-07-02.md | 0109-2023-07-06.md |
- Fixed bug to reset
spi_done. - PicoDeo firmware now supports sending cursor position using SPI (via bit-banging).
- Cursor now stays square, as we expect, though there is a glitch where a column gets momentarily filled, that I think is actually just a problem with the "cursor Y stop" not being triggered because the cursor position gets updated (at VBLANK start) before it would have a chance. It seems like the proper thing to do here anyway is to make sure there is no logic that depends on comparisons being done in VBLANK, and in this case just resetting the register regardless as soon as VBLANK starts.
- Now that we've got bit-banging of SPI working from PicoDeo, try using the RP2040's actual SPI hardware? Would be good to try speeding it up progressively.
- Also try to now make raybox-bridge send the cursor using this new method (instead of just circle-cursor).
- For Raybox, design could be simpler if we just let the host controller write into our registers directly when it is safe to do so (i.e. during visible region), and reject it otherwise.