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Forum Index : Microcontroller and PC projects : PIO-Prog for Hub75 display
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| AlbertR Senior Member  Joined: 29/05/2025 Location: GermanyPosts: 106 |
To achieve 0% brightness, I needed another PIO line. I was able to save this by adding an additional state machine. The PIO program now uses four. With this version, I have gone through all the variants (1SM, 2SM, 3SM, and now 4SM). I found another error during testing. With the bitmaps, exceeding the maximum Y position was not intercepted. This occurred in connection with vertical text. Hub75_4SmDemo.zip The Hub75 PIO program appears to be fully developed at this point. However, I would welcome suggestions for improvement or other approaches to the topic. Albert Edited 2026-01-20 00:19 by AlbertR |
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| Bleep Guru  Joined: 09/01/2022 Location: United KingdomPosts: 732 |
Hi Albert, I'm home now, so as promised I've tested your new driver, it's working fine with my 64x128 display, I haven't yet had time to test 128x128, but will do in due course. As you say, loading images is about 35% faster, normal drawing commands and text, a little bit faster :-) This is still using a 2040, on 6.01 not tried a 2350. I also haven't yet tried the latest 6.02. Regards, Kevin. |
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| Bleep Guru Joined: 09/01/2022 Location: United KingdomPosts: 732 |
I have now tested 6.02 and everything is working the same as before, it's all got slightly slower, about 4% slower across the board, but it does still work. It's a shame 332 colour isn't possible, :-( the extra colours would make images much nicer, but then we are only using a microcontroler, which makes what you have done amazing. :-) Also now tested 256x64 which is also working fine. Regards, Kevin. Edited 2026-01-27 06:43 by Bleep |
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