Go to previous topic
Go to next topic
Last Post 20 Apr 2006 01:26 PM by  NetHog
Using BITMAP command with Custom Display
 4 Replies
Author Messages
NetHog
New Member
New Member
Posts:


--
20 Apr 2006 10:13 AM
    I'm testing the SDK-LH79520-10 with an LQ043T3DX02 (4.3" 480x272) Sharp display. I would like to use the 'bitmap' command to display images on the screen. I need to find the register settings for this display.

    I found a FAQ about customizing the registers for several displays with a PXA270-10 card ( http://www.logicpd.com/su...q/faq.php?faq_id=139 ).
    If I'm understanding this right, I need to set the correct register addresses with the correct values using the 'w' command. What would be the register settings for my display?

    Can anyone help or point me in the right direction?

    Thanks in advance.

    NetHog
    Anonymous
    Posts:


    --
    20 Apr 2006 10:43 AM
    Hello,

    You can find the proper register settings in the spec for the LCD. You can also try contacting Sharp for assistance in this regard.

    Thanks,
    NetHog
    New Member
    New Member
    Posts:


    --
    20 Apr 2006 11:37 AM
    Is there a way to READ the settings? We have 2 of your development boards (SDK-LH79520-10-3208) and one of your displays (LCD-6.4-VGA-10). I have successfully used the 'bitmap' command to show images on the 6.4" display. Since the code in question is supplied by Logic, I was hoping you could answer some questions.

    Once I have set the registers using for example:

    losh> video-open 5 16

    Can I read those register values? I do not have a list of your commands. I tried r, rd, read. Which leads to another question ... Is there a command list available?

    Thanks in advance
    Anonymous
    Posts:


    --
    20 Apr 2006 11:39 AM
    Hi NetHog,

    Yes you can read and write to those registers using the 'x' and 'w' commands in LogicLoader. Please refer to LogicLoader documentation for more information.

    Thanks,
    NetHog
    New Member
    New Member
    Posts:


    --
    20 Apr 2006 01:26 PM
    Thanks aaronlpd!

    I noticed that the 'video-init' command is not listed in the LogicLoader documentation and, in fact, when I try to use it, I get an error. If I'm understanding this correctly, without the 'video-init' command, I can't use my display with your software.

    I'm using Version BRA_release_1-2-pre1.2.5 of the Logicloader. Is there a newer ( or older for that matter ) version of the Logicloader available that supports the 'video-init' command?

    Is there any way to use a custom display with the Logic Development Board and accompanying software?

    Forums NXP SOMs and Development Kits LH79520 Card Engine and Development Kit
    ---