I tested both modes extensively on the 1280×800 BT817, drawing sinewaves, lines, text and borders. The sine curves and borders look virtually identical whether I use VERTEX_FORMAT=4 with translation or VERTEX_FORMAT=3. Given this, I’m happy to...
Thank you for looking into this further. I reviewed the BT81x programming guide and it clarifies how VERTEX_FORMAT affects coordinate range. With VERTEX_FORMAT set to 4 (the default), only 10 bits are used for the integer part of each coordinate...
Hi again
TFTLCDCyg
,
Thanks for the updated hello‑world example and your guidance on timing. I’m still running into one consistent limitation, though: on the 1280×800 BT817 panels, anything drawn with Vertex2f() beyond x = 1023 is either...
On 1280×800 panels the X coordinate wraps at 1023 for lines and rectangles. GDSTx currently requires manual use of VertexTranslateX() to draw past x=1023. Would you consider adding an optional ‘BT81x extended’ mode or helper so that...
Testcard with updated library works well - see attached.
If by artifacts, you mean unexpected flashes outside the area where the sprites are, then no. The Teensy gets to the 2001 counter very fast so I put a delay in the main loop to slow it...
A while ago, I was configuring the library to connect a 10.1" EVE4 display. However, due to time and resource constraints, it wasn't possible to get the display for testing. Since you already have a 12.1" display, if you'd allow me, "you'll be my...
Awesome, thanks TFTLCDCyg!! I had to change the reset pin in your .h file to 3 as the Teensy doesn't have an (easily accessible) pin 24. Your Hello World example now shows Hello World. There is a white border along the left edge but no other...