[Buildroot] Setting RGB

Ezequiel Garcia ezequiel at vanguardiasur.com.ar
Thu Feb 11 14:06:06 UTC 2016


Hey Gabriel,

On 10 February 2016 at 14:40, GabrielCastillo
<gcastillo at controlnet.com.ar> wrote:
> I'm using:
> - SAMA5D3x
> -Atmel
> - The Display is a Multiino MI0500PT-7
>
> I don't know if on QT4 works, but i need to make an App on QT5.
>

I really don't think this has anything to do with Qt. See below.

> I have configure a panel-simple.c with:
>
> static const struct drm_display_mode multiinno_mi0500pt_mode = {
>   »···.clock = 30000,
>   »···.hdisplay = 800,
>   »···.hsync_start = 800 + 2,
>   »···.hsync_end = 800 + 2 + 41,
>   »···.htotal = 800 + 2 + 41 + 2,
>   »···.vdisplay = 480,
>   »···.vsync_start = 480 + 2,
>   »···.vsync_end = 480 + 2 + 41,
>   »···.vtotal = 480 + 2 + 41 + 2,
>   »···.vrefresh = 60,
>   »···.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
>   };
>
>   static const struct panel_desc multiinno_mi0500pt = {
>   »···.modes = &multiinno_mi0500pt_mode,
>   »···.num_modes = 1,
>   »···.bpc = 8,
>   »···.size = {
>   »···»···.width = 108,
>   »···»···.height = 65,
>   »···},
>   »···.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
> };
>

So I presume you have a framebuffer device at /dev/fb0. In that case,
you can enable the Buildroot package for the framebuffer tests
(BR2_PACKAGE_FB_TEST_APP) and the run "fb-test".

You should get this:

https://wiki.chiliboard.org/images/7/78/Fb-test.png

See how blue matches blue, red matches red, etc.

Can you do this and let us know?
-- 
Ezequiel García, VanguardiaSur
www.vanguardiasur.com.ar


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