Display Output Setting - Revision history

Alex.cheng: Modify description

2019-02-21T02:14:43Z

Modify description

Zhengguang.yang: remove some display parameters

2018-12-10T03:56:25Z

remove some display parameters

Zhengguang.yang: add test command without EG-52

2018-12-10T03:42:26Z

add test command without EG-52

Zhengguang.yang: Created page with "Execute the following instructions, then you will see the video demo on the default display screen.

2018-04-27T02:27:05Z

Created page with "Execute the following instructions, then you will see the video demo on the default display screen. <div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px..."

New page
Execute the following instructions, then you will see the video demo on the default display screen.
<div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">$ /etc/init.d/matrix-gui-2.0 stop</div><div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">$ /etc/init.d/weston stop</div><div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">$ gst-launch-1.0 playbin uri=file:///usr/share/ti/video/TearOfSteel-Short-1920x800.mov audio-sink="alsasink" video-sink="kmssink scale=true"</div>
The default supported LVDS is Dual-Channel and 1920 × 1080 resolutions. If you want to support Single-Channel 7 inch screen, the modification is as follows:

1) Open the mux_rom7510a2.h header file found in {UBOOT}/board/ti/advantech/. Modify the pinmux of GPMC_CS0 from PIN_OUTPUT_PULLDOWN to PIN_OUTPUT_PULLUP

Original:
<div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">{GPMC_CS0, (M14 | PIN_OUTPUT_PULLDOWN)},/* gpmc_cs0.gpio2_19 /</div>
Modified:
<div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">{GPMC_CS0, (M14 | PIN_OUTPUT_PULLUP)},/ gpmc_cs0.gpio2_19 */</div>
2) Open the am57xx-rom7510a2.dts device tree file found in {LINUX}/arch/ arm/boot/dts/. Change the original panel-timing to panel-timing of 7 inch screen.

The following configuration is only used as a sample( The actual timings of the screen you used should be based on its datasheet):

panel-timing {<br/>clock-frequency = <148500000

Original:
<div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">panel-timing {<br/>clock-frequency = <148500000>;<br/>hactive = <1920>;<br/>vactive = <1080>;<br/>hfront-porch = <24>;<br/>hback-porch = <54>;<br/>hsync-len = <12>;<br/>vback-porch = <3>;<br/>vfront-porch = <40>;<br/>vsync-len = <7>;<br/>hsync-active = <0>;<br/>vsync-active = <0>;<br/>de-active = <1>;<br/>pixelclk-active = <1>;<br/>};</div>
Modified:
<div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">panel-timing {<br/>clock-frequency = <29500000>;<br/>hactive = <800>;<br/>vactive = <480>;<br/>hfront-porch = <24>;<br/>hback-porch = <96>;<br/>hsync-len = <72>;<br/>vback-porch = <3>;<br/>vfront-porch = <10>;<br/>vsync-len = <7>;<br/>hsync-active = <0>;<br/>vsync-active = <0>;<br/>de-active = <1>;<br/>pixelclk-active = <1>;<br/>};</div>
 

'''Note:'''The voltage required for different screen backlighting is different, so you have to choose the appropriate backlight voltage. You can refer the detail jump information to select backlight voltage from ROMDB7502_User_Manual.

@@ Line 22: / Line 22: @@
 <div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">panel-timing {<br/>clock-frequency = &lt;29500000&gt;;<br/>hactive = &lt;800&gt;;<br/>vactive = &lt;480&gt;;<br/>hfront-porch = &lt;24&gt;;<br/>hback-porch = &lt;96&gt;;<br/>hsync-len = &lt;72&gt;;<br/>vback-porch = &lt;3&gt;;<br/>vfront-porch = &lt;10&gt;;<br/>vsync-len = &lt;7&gt;;<br/>hsync-active = &lt;0&gt;;<br/>vsync-active = &lt;0&gt;;<br/>de-active = &lt;1&gt;;<br/>pixelclk-active = &lt;1&gt;;<br/>};</div>
 &nbsp;
 '''Note:'''The voltage required for different screen backlighting is different, so you have to choose the appropriate backlight voltage. You can refer the detail jump information to select backlight voltage from ROMDB7502_User_Manual.

@@ Line 2: / Line 2: @@
 <div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">$ /etc/init.d/matrix-gui-2.0 stop</div><div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">$ /etc/init.d/weston stop</div><div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">$ gst-launch-1.0 playbin uri=file:///usr/share/ti/video/TearOfSteel-Short-1920x800.mov audio-sink="alsasink" video-sink="kmssink scale=true"</div>
 If you don't have EG-52 on the board, please test with the following instructions:
-<div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">$ /etc/init.d/matrix-gui-2.0 stop</div><div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">$ /etc/init.d/weston stop</div><div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">$ gst-launch-1.0 filesrc location=/usr/share/ti/video/TearOfSteel-Short-1920x800.mov ! decodebin name=decoder decoder. ! videoconvert ! kmssink</div>
+<div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">$ /etc/init.d/matrix-gui-2.0 stop</div><div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">$ /etc/init.d/weston stop</div><div style="background: rgb(238, 238, 238); padding: 5px 10px; border: 1px solid rgb(204, 204, 204);">$ gst-launch-1.0 filesrc location=/usr/share/ti/video/TearOfSteel-Short-1920x800.mov&nbsp;! decodebin&nbsp;! videoconvert&nbsp;! kmssink</div>
 The default supported LVDS is Dual-Channel and 1920 × 1080 resolutions. If you want to support Single-Channel 7 inch screen, the modification is as follows: