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How do I set up a new display for the LVDS connector on the Wi-i.MX53?

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I have a Development board for the Wi-i.MX53 and I wish to connect another LCD panel to it instead of the one delivered by DIGI.
The display is a FG0700K6DSSWAGT1 with a 3 pair LVDS connection.
I can get a picture on it, but it has the wrong resolution when I set it up as one of the predefined LVDS displays in U-Boot.
I have tried defining all the parameters in U-Boot but it seems that either U-Boot or Windows ignores these.
asked Mar 20, 2014 in Windows CE by slm New to the Community (0 points)

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1 Answer

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I do not know what you need to set in WinCE side but on uboot you need to set environment variables.

In uboot type video command and then choose display LVDS and set a custom configuration. You can choose to set a configuration which can be read from NVRAM or it can be read from OS also.

Check WinCE docs to see where you need to customize a custom display
answered Mar 21, 2014 by tuxembb Veteran of the Digi Community (288 points)
For clarification, this is my output when I try to select a custom display in U-Boot:
 --------------------------------------------------------------------------------------------   
U-Boot 2009.08 - DUB-1.4.0.3 - (Jul 12 2012 - 13:40:22) - GCC 4.4.6             
for ConnectCore Wi-i.MX53 on a JumpStart Kit Development Board                  
                                                                                
I2C:   ready                                                                    
NAND:  512 MiB                                                                  
MMC:   FSL_ESDHC: 0, FSL_ESDHC: 1                                               
DRAM:  512 MB                                                                   
In:    serial                                                                   
Out:   serial                                                                   
Err:   serial                                                                   
Net:   FEC0 [PRIME]                                                             
Autoscript from TFTP... [not available]                                         
Hit any key to stop autoboot:  0                                                
CCWMX53 # video                                                                 
                                                                                
Video interface                                                                 
  1) Video 1                                                                    
  2) Video 2                                                                    
  3) LVDS bridge                                                                
  4) Primary display                                                            
  5) Cancel                                                                     
Select interface: 1                                                             
                                                                                
Displays/video mode                                                             
  1) Disabled                                                                   
  2) HDMI                                                                       
  3) LCD display                                                                
  4) LVDS display                                                               
  5) Cancel                                                                     
Select displays/video mode: 4                                                   
                                                                                
LVDS display                                                                    
  1) LQ121K1LG11 and LQ121K1LG52 (1280x800)                                     
  2) HSD101PFW2 (1024x600)                                                      
  3) custom1 configuration                                                      
  4) custom2 configuration                                                      
  5) Cancel                                                                     
Select LVDS display: 3                                                          
                                                                                
video=displayfb:LVDS@custom1                                                    
video2=displayfb:disabled                                                       
ldb=single,di=0,ch0_map=SPWG                                                    
fbprimary=video                                                                
                                                                                
Remember to save the configuration with 'saveenv'                               
                                                                                
CCWMX53 #
-----------------------------------------------------------------------------------------
Output in Windows after boot:
-----------------------------------------------------------------------------------------
BSPGetNumSupportedModes: MODEID initialized                                     
[BSPGetPanelInfo DI0]: LVDS interface selected.                                 
[BSPGetPanelInfo DI0]: Display =LVDS Custom Display 1 Resolution 0x0.           
[BSPGetPanelInfo DI0]: LVDS interface selected.                                 
[BSPGetPanelInfo DI0]: Display =LVDS Custom Display 1 Resolution 0x0.  
-------------------------------------------------------------------------------------------

If I try to select one of the predefined types I get a picture but it does not "fit" eg. the resolution is too high, but a picture shows up.

Clearly the "custom1" does not have the relevant parameters defined.
Where do I define these, the U-boot documentation does not specify this, and Google does not yield any answer.
You need to check WinCE documentation to udnerstand how to setup a custom display.

If couldnt find reach out to http://www.digi.com/support/eservice/
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