lizzylot

6 ms·

1. 1.▲
   by lizzylot 8mo ago

   Climate change is a global problem. Fossil fuels burned in Norway or somewhere contributes the same amount of CO2. It's kinda like shipping your plastic trash to another country and have them dumping it into the ocean and going "l
2. 2.▲
   by lizzylot 8mo ago

   For simple SPI displays it's the transfer bandwidth that dominates, so for best performance you wanna minimize the number of pixels you need to send. So for eaxmple: if you wanna draw a 100 pixel long horizontal line, if you ever send
3. 3.▲
   by lizzylot 8mo ago

   Without DMA you need to insert a lot of wasted cycles to wait between each SPI transfer, so it doesn't take that many bytes to make it worth it. I use variable width fonts on 16bit rgb565 displays and DMA doubles the speed of drawing t