T-0.99TFT Source Code

[jxk]

hello, im trying to make the .99 inch tft work on an Arduino, and when inspecting the source code for the esp library, i got quite confused by the following lines in the LCD_INIT of src/TFT_GC9D01N.cpp

RST_H;
delay(80);

RST_L;
delay(80);

RST_H;
delay(480);

//ok the above lines reset the screen

writecommand(0xFE);
writecommand(0xEF);

//based on the datasheet provided, this unlocks the inner register set

writecommand(0x80);
writedata(0xFF);

writecommand(0x81);
writedata(0xFF);

//now this (and the other commands that don't match with any hex calls in the datasheet) is what i don't understand. what does it do here exactly. 0x80 is a setting in set_gamma1, but shouldn't then F0 should be called to arrive at set_gamma1?

and then 0x81-0x8E lines aren't even mentioned in the whole datasheet.

so my question is, how do those lines work, what functions do they perform for the screen, or is this leftover code from adapting this library from other screens?

[teastain2]

@jxk What LilyGO board and what application are you having trouble with?

[jxk]

@teastain2
the T-0.99TFT display, and it's code, as mentioned in the previous comment.

[teastain2]

@jxk Ok, then.