262K colors on SD1289 LCD ?

[antonius]

Posted on June 06, 2014 at 05:35

Guys,

How can I set on initialization for 262K colors on SD1289 LCD ? I had tried :

LCD_WriteReg(0x0011,0x6070); LCD_Delay(5); ==>64K colors ?
//LCD_WriteReg(0x0011,0x40B0) ==>262K colors?

Any clues ? Thanks

[stm32forum]

Posted on June 06, 2014 at 10:44

Try it first with only changing the DFM bits in the entry mode register, that will become:

LCD_WriteReg(0x0011,0x4070;

[antonius]

Posted on June 07, 2014 at 11:44

it's only displaying a half side of LCD with 4070....which value is right ?

thanks

[jj2]

Posted on June 07, 2014 at 15:02

Sometimes wise/advisable to carefully consider that which you seek.  SD1289 rarely populates best/brightest TFT.  And - 262K colors - really? 

If your need is near perfect, ''flesh tones'' then perhaps.  If not - our group has long found 65K colors to suffice. There is of course a rather severe ''downside'' resulting from hallowed 262K colors.  Can you say ....S.....L.....O.....W.....? We're not told if same, ''half-screen'' image resulted under 65K color mode?  Image ''fill'' is usually regulated by single or dual registers which adjust horizontal and vertical pixel max.

[antonius]

Posted on June 08, 2014 at 00:31

why can't it display 0xFFFF on RGB ? I got some black dots on 0xFFFF ?