Talking to a 320x240 colour LCD

Now that we have a fast SPI driver, we can tackle a more ambituous task of driving a 320x240 colour LCD display. In this example, we’ll use the HyTiny board with this 3.2” display, because the two can be connected via a simple 12-pin FPC cable (included with the display). When you do the math, you can see that there’s a lot of data involved: 240 x 320 x 16-bit colour (max 18-bit) requires 153,600 bytes of memory (172,800 bytes in 18-bit mode).