SAMA5D4 Xplained HDMI DEmo Programm

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micro1
Posts: 42
Joined: Sun Jun 08, 2014 11:55 am

SAMA5D4 Xplained HDMI DEmo Programm

Sat Feb 14, 2015 7:07 pm

Hello,
has anybody an Little demo Programm for me to test the HDMI Output from the SAMA5D4 Xplained Board. I am not able to get a Monitor to work. Mybee my board is damaged.
blue_z
Location: USA
Posts: 1943
Joined: Thu Apr 19, 2007 10:15 pm

Re: SAMA5D4 Xplained HDMI DEmo Programm

Tue Feb 17, 2015 2:25 am

micro1 wrote:has anybody an Little demo Programm for me to test the HDMI Output from the SAMA5D4 Xplained Board.
HDMI is video output from the frame buffer (plus audio). Try fb-test
micro1 wrote:Mybee my board is damaged.
More likely it's operator error.

Regards
micro1
Posts: 42
Joined: Sun Jun 08, 2014 11:55 am

Re: SAMA5D4 Xplained HDMI DEmo Programm

Wed Feb 18, 2015 9:30 pm

Hello,

Thanks ok. I will Try it.

Of Course i think to it is an Operator error. But i Try and try and There ist no picture on the screen via HDMI
micro1
Posts: 42
Joined: Sun Jun 08, 2014 11:55 am

Re: SAMA5D4 Xplained HDMI DEmo Programm

Thu Feb 19, 2015 7:15 pm

The files does not work. Because on the SAMA5D4 Xplained is no dev/fb0
micro1
Posts: 42
Joined: Sun Jun 08, 2014 11:55 am

Re: SAMA5D4 Xplained HDMI DEmo Programm

Thu Feb 19, 2015 7:16 pm

Have anybody for me in this world a little test Programm to test the HDMI Output?
blue_z
Location: USA
Posts: 1943
Joined: Thu Apr 19, 2007 10:15 pm

Re: SAMA5D4 Xplained HDMI DEmo Programm

Thu Feb 19, 2015 10:40 pm

micro1 wrote:Because on the SAMA5D4 Xplained is no dev/fb0
Then that's the next problem you have to solve, instead of looking for another program.

You're probably booting with a Device Tree blob that doesn't enable the frame buffer (i.e. the LCD controller).
The source tree has a dts file named at91-sama5d4_xplained_hdmi.dts that enables the LCDC and the video decoder.

Regards
micro1
Posts: 42
Joined: Sun Jun 08, 2014 11:55 am

Re: SAMA5D4 Xplained HDMI DEmo Programm

Fri Feb 20, 2015 8:14 pm

Ok trank you. I have found the at91 ftp Server. There was an Zip file with HDMI Demo image. I have Flash this Demo image. Now i am one step further. I have dev/fb0. I Try my luck again. 
Last edited by micro1 on Mon Feb 23, 2015 7:44 pm, edited 1 time in total.
micro1
Posts: 42
Joined: Sun Jun 08, 2014 11:55 am

Re: SAMA5D4 Xplained HDMI DEmo Programm

Sat Feb 21, 2015 9:34 am

Ok Problem is solved . Thanks. After dev/fb0 is present HDMI Output works Fine.

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