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262K colors on SD1289 LCD ?

antonius
Senior
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
4 REPLIES 4
stm32forum
Associate II
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
Senior
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
Associate II
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
Senior
Posted on June 08, 2014 at 00:31

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