i.MX ProcessorsのトピックRe: Can G1120B0MIPI use DPI-2 interface(RGB interface) mode with MIMXRT595-EVK?

Can G1120B0MIPI use DPI-2 interface(RGB interface) mode with MIMXRT595-EVK?

mintisan — Mon, 21 Aug 2023 14:58:06 GMT

I have MIMXRT595-EVK and G1120B0MIPI board.

And I runned sd_jepg demo successfully.

When I traced the internal logic further, I found that the code uses APB interface but not DPI-2 interface(also called RGB interface)[It uses VSYNC, HSYNC, DOTCLK and ENABLE signals to transmit data to LCD panel.].

But APB interface only can transfer 255 bytes per time, just as below:

I want to change APB interface to DPI-2 interface(RGB interface) as below:

Does G1120B0MIPI support DPI-2 interface(RGB interface) mode?

Are there any relevant documents or routines that can be provided for reference?

Looking forward to your reply. Thanks.

Re: Can G1120B0MIPI use DPI-2 interface(RGB interface) mode with MIMXRT595-EVK?

Bio_TICFSL — Wed, 23 Aug 2023 14:40:38 GMT

Hello,

The RT595 does not support DPI-2, sorry, you may check with i.MX8M for this.

Regards

Re: Can G1120B0MIPI use DPI-2 interface(RGB interface) mode with MIMXRT595-EVK?

mintisan — Thu, 24 Aug 2023 14:31:34 GMT

hi,

I read AN13509-Analysis of screen pushing scene based on i.MXRT595 MIPI DSI Controller, which shows it support DPI-2 as below:

Do I missed something? Thanks...

Re: Can G1120B0MIPI use DPI-2 interface(RGB interface) mode with MIMXRT595-EVK?

Bio_TICFSL — Thu, 24 Aug 2023 15:12:10 GMT

Hello,

I mean we do not have any code for DPI-2.

Regards

Re: Can G1120B0MIPI use DPI-2 interface(RGB interface) mode with MIMXRT595-EVK?

mintisan — Fri, 25 Aug 2023 06:51:06 GMT

Thanks for your reply.

I find evkmimxrt595_lcdif_rgb565 example use lcdif(dpi)+dsi with 2 lane. It works fine.

But when I modify 2 lane to 1 lane.

The parameter not same between setting and captured:

The images shows abnormal as below:

Should I also change clk or something else?

Thanks.

Re: Can G1120B0MIPI use DPI-2 interface(RGB interface) mode with MIMXRT595-EVK?

mintisan — Sat, 30 Sep 2023 10:36:22 GMT

Solved after I changed the pixel clock.