DEDuino – Some more performance tuning

I’ve been Working on some way to streamline performance as much as I could. The biggest performance limiter, is the drawing of the big screens (DED/PFD),

One of the tricks I’ve thought might help was to switch the display from 2 bit color mode to 1 bit (4 shades of “grayscale” to only “black and white”) theoretically – a 100% boost, it practice I have discovered I had a bug in the code all along. Apparently U8Glib has a switch to handle displays bigger then 240pixels, I’ve known about it but as long as I’ve been using the grayscale mode, I’ve been unaware of it (because the part that didn’t work was black). once I’ve switched to BW mode – it lit up casing stripes on the screen.

To fix this, and simply basic installation, I thought about including the entire U8Glib library, with the required change in the folder. Unfortunatly, the Arduino IDE does not allow this, So I’ll be including a ZIP file with the modified library for easy import into the IDE.

I’ve also found out that ┬ámy plan to flip the DED display (to allow better weight distribution in the case) is a very bad idea as putting in “rotate 180” on the screen almost halfs the FPS.

I’ll be working on this some more till the PCBs arrive – but I think this is pretty much the limit as far as my ability to optimize the code to improve refresh rate.

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