DA8XX-FB LCD DRIVER

27. April 2019 at 13:00

I was quite surprised to discover that my two favorite programs, Photoshop and ImageMagick, both don’t export in that format, and apparently neither does Gimp. Definitely not a Rev C board, so it must be a B I think we have an A here as well, but this isn’t it. It is imperative that these base-ceiling pairs match up when the hardware reads them. We’ll take a look at this setup today and let you know what happens. So, now the question is what did I do wrong to cause the frame buffer to be non-readable and non-writable?

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If so, let me know. Yes, the instructions are involved, but they’re easy enough to follow.

Linux-Kernel Archive: [PATCH] davinci: fb: Frame Buffer driver for TI DA8xx/OMAP-L1xx

This framebuffer, as understood by the DMA engine, will be way off. Again, we can’t really help too much here without detailed schematics, and ideally some hardware test with. Meanwhile, the DMA uses the current values of those registers for the next frame immediately after firing the interrupt. Would be nice to get this more automated if we can figure out why it’s not showing up, ad8xx-fb again that’s not a show-stopper. I’ve got a true DVI panel hooked to the unit, as required.

Sorry for the delay. The compile command line is in the file header comment.

[PATCH] davinci: fb: Frame Buffer driver for TI DA8xx/OMAP-L1xx

Views Read View source View history. Currently entering to this condition is narrowed down smallest possible extent by disabling system wide interrupts. I’m researching that now and will post here again if I find it before someone else does.

The kernel included in the development kit provided should have the necessary code installed da8xs-fb support either the DVI interface or the LCD panel interface. If not, can you tell me how to create them?

I’ll get the source up there as well. William If you are seeing blue vertical stripes every other pixel then the frame buffer is working. BTW, we figured out how to do da8xx-vb bitmaps. It draws a white box around the border of the frame buffer and fills it with 16 bars. But Android is designed to work with double buffered mode and increasing no.

I can write something myself very easily, but thought I’d ask if you already know of something.

I’ve updated the wiki with more instructions they seem involved, but it’s not that bad once you do it the first timeprimarily with turning on da8xx-ffb DVI controller it comes up in a power savings mode. That’s the right image. I’ll post the LCD image up there.

fbdev: da8xx-fb: fix videomodes of lcd panels [Linux 3.10.102]

That seems to have gotten the low-level hardware d8axx-fb recognize things, since the U-Boot startup now says something like “configured LCD: I now see a raster on the DVI-based monitor. The LCD configuration wiki page has been started that will cover the information you need. I can, however, point you to the relevant source code that you will need to modify to set the timings for the video portion, etc.

If you use qt-embedded, it has a translator built in to read png’s, etc. The “name” fields is keyed in the init code in the board-mityomapl This page has been accessed 6, times. But I won’t be using DVI for my real demo, so that’s not very critical.

Application follows below steps:. It will lead to sync error interrupts and possibly affect system performance. Here’s what I see: It’s not there yet. At this point, all we really need to do is draw a bitmap to memory and have it show up on the LCD. Quite possibly an error on my end. lvd

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