I’ve had mine (2) for a while, so they’re Epson. In 12 bit mode they always write two pixels, starting at the even address. This messes up the pixel count in Jim Lynch’s excellent tutorial, so the rectangles don’t fully fill. A four pixel line starting at an even address will take 2 writes, fitting perfectly, while a four pixel line starting at an odd address will take 3 writes, and stick an extra pixel both before and after the line. The total write count needs to consider this odd/even orientation.
Otherwise a nice little display, not too hard to get working, even when driven by an underpowered AVR Butterfly.
Product LCD-00569 | about 3 years ago
I’ve had mine (2) for a while, so they’re Epson. In 12 bit mode they always write two pixels, starting at the even address. This messes up the pixel count in Jim Lynch’s excellent tutorial, so the rectangles don’t fully fill. A four pixel line starting at an even address will take 2 writes, fitting perfectly, while a four pixel line starting at an odd address will take 3 writes, and stick an extra pixel both before and after the line. The total write count needs to consider this odd/even orientation.
Otherwise a nice little display, not too hard to get working, even when driven by an underpowered AVR Butterfly.