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auzzz
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Last seen: 4 months 2 weeks ago
Joined: 2016-06-20 10:43
Demo for RGB mode LCD

Hello there,

Is there any document regarding how RGB interface cd is connected to DA14695 G0,G1,B0, B1, R0, R1?

Is it possible that I can use a MCU 8080 interface LCD in DA14965 GDI framework?

Device: 
PS_Dialog
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Last seen: 11 months 3 weeks ago
Joined: 2018-01-15 10:36
Hi,

Hi,

LCD IF is described at Cap 22.2.1 Parallel LCD Interfaces pag 199 of the datasheet.

Table 105 shows HSYNC/VSYNC Parallel I/F Pinout

Table 106 shows JDI Parallel I/F Pinout

MCU8080 is not supported.

BR, Paolo

auzzz
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Last seen: 4 months 2 weeks ago
Joined: 2016-06-20 10:43
Hello Paolo,

Hello Paolo,

I found 6bit mode supported in document, but it transfer 2bit R, 2bit G, 2bit B in one clock tick. But most 6 bit rgb mode supported I found, is kind of serial mode - 6bit R, 6bit G, 6bit B. So, my question is if the 6bit rgb mode is only supported for several specific display dirver?

 

PM_Dialog
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Last seen: 3 days 21 hours ago
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Joined: 2018-02-08 11:03
Hi auzzz,

Hi auzzz,

Sorry for jumping in. The DA1469x has only 6 pins for the RGB. So, you will have to take the 2 most significant bits from each color from the LCD that you are using and connect them to the DA1469x.

The 2 MSB from each color are enough to fully represent the displayed image. The other 6 LSB are used for the color intercity. We are using 2 bits from each color just to save pins.

In the Parallel LCD Interface, the controller will take out all the color bits for each pixel in only 1 clock cycle.

For instance, in case of the RGB88 : 24 parallel bits (color information : of which only 6 are available in the DA1469x device family) will take out in 1 clock cycle.

The color format is not depended on the interface (serial, parallel, etc. ) will be used.

It’s possible to have various output color formats such as RGB565/RGB666/RGB888, but in all cases the DA1469x will take only the 2 MSBs from each color as an output. So, in the parallel interface, 6 bits will take out in 1 clock cycle.

Thanks, PM_Dialog

auzzz
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Last seen: 4 months 2 weeks ago
Joined: 2016-06-20 10:43
Thanks for your kind

Thanks for your kind informative reply. Now I understand that it's actually a 64 color pallette for RGB mode.