Hi there,
i was able to get my 10.1 custom Display to work with the RGB Pins on the
beaglebone black.
I am using the latest Debian Jessie image from beagleboard.org and the X11
Desktop has the right colors and the right size.
So i assume that the Timings from my display are correct.
panel {
status = "okay";
compatible = "ti,tilcdc,panel";
pinctrl-names = "default";
pinctrl-0 = <&bb_lcd_lcd_pins>;
panel-info {
ac-bias = <255>;
ac-bias-intrpt = <0>;
dma-burst-sz = <16>;
bpp = <32>;
fdd = <0x80>;
tft-alt-mode = <0>;
stn-565-mode = <0>;
mono-8bit-mode = <0>;
sync-edge = <0>;
sync-ctrl = <1>;
raster-order = <0>;
fifo-th = <0>;
};
display-timings {
native-mode = <&timing0>;
timing0: 1280x800 {
clock-frequency =
<70000000>;
hactive = <1280>;
vactive = <800>;
hfront-porch = <80>;
hback-porch = <60>;
hsync-len = <20>;
vback-porch = <12>;
vfront-porch = <8>;
vsync-len = <3>;
hsync-active = <0>;
vsync-active = <0>;
};
};
};
But when i play a video or when i have many frames on the display i get
some screen flickers.
On the log via UART i see the following:
1- When booting up: of_graph_get_next_endpoint(): no port node found in
/ocp/lcdc@4830e000
2- When video or many frames are displayed:
tilcdc 4830e000.lcdc: tilcdc_crtc_irq(0x00000020): FIFO underflow
tilcdc 4830e000.lcdc: tilcdc_crtc_irq(0x00000004): Sync lost
Any idea?
Is the DDR flash rate to slow? Or the DMA buffer not big enougth?
--
For more options, visit http://beagleboard.org/discuss
---
You received this message because you are subscribed to the Google Groups
"BeagleBoard" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
