# ConnectCore 6UL with WVGA LCD Application Kit

**URL:** <https://forums.digi.com/t/connectcore-6ul-with-wvga-lcd-application-kit/17852>\
**Category:** Linux\
**Tags:** 6ul\
**Created:** [January 5, 2017, 10:53am UTC](https://forums.digi.com/t/connectcore-6ul-with-wvga-lcd-application-kit/17852 "2017-01-05T10:53:57Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![kaltschu](https://avatars.discourse-cdn.com/v4/letter/k/b9bd4f/32.png) [@kaltschu](https://forums.digi.com/u/kaltschu)\
**Post date:** [January 5, 2017, 10:53am UTC](https://forums.digi.com/t/connectcore-6ul-with-wvga-lcd-application-kit/17852/1 "2017-01-05T10:53:57Z")

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I have a ConnectCore6UL SBC, and the 10" WVGA LCD Application Kit. By default, the display does not show any activity.  
Where would I change the settings (kernel and/or U-Boot) to bring up the graphical display?

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**Author:** ![LeonidM](https://avatars.discourse-cdn.com/v4/letter/l/d26b3c/32.png) [@LeonidM](https://forums.digi.com/u/LeonidM)\
**Post date:** [January 5, 2017, 12:33pm UTC](https://forums.digi.com/t/connectcore-6ul-with-wvga-lcd-application-kit/17852/2 "2017-01-05T12:33:38Z")

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what image are you booting? does it have graphics? LCD should work using stock images  
Download the firmware images from this location: ftp://ftp1.digi.com/support/digiembeddedyocto/2.0/r4/images/82004060\_1P.zip

or images from here:  
ftp://ftp1.digi.com/support/digiembeddedyocto/2.0/r4/images/82004059\_1P/ccimx6ulsbc/x11/

rest your u-boot environment and note your video variable.  
Touch Screen does not work. It will not support the touch interface due to and i2c address conflict between the audio chip and the touch controller. For that reason digi is working on a new video adapter board that changes the address of the touch interface.

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<div class="post-metadata">

**Author:** ![kaltschu](https://avatars.discourse-cdn.com/v4/letter/k/b9bd4f/32.png) [@kaltschu](https://forums.digi.com/u/kaltschu)\
**Post date:** [January 5, 2017, 5:20pm UTC](https://forums.digi.com/t/connectcore-6ul-with-wvga-lcd-application-kit/17852/3 "2017-01-05T17:20:20Z")

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None of the image files bring up the display, with either the RGB parallel or LVDS cable connected.

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<div class="post-metadata">

**Author:** ![LeonidM](https://avatars.discourse-cdn.com/v4/letter/l/d26b3c/32.png) [@LeonidM](https://forums.digi.com/u/LeonidM)\
**Post date:** [January 5, 2017, 5:25pm UTC](https://forums.digi.com/t/connectcore-6ul-with-wvga-lcd-application-kit/17852/4 "2017-01-05T17:25:20Z")

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did you try to reset your u-boot environment?  
env default –a  
save  
reset

if that doesn’t help, please cope and paste your “video” variable  
printenv video

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<div class="post-metadata">

**Author:** ![kaltschu](https://avatars.discourse-cdn.com/v4/letter/k/b9bd4f/32.png) [@kaltschu](https://forums.digi.com/u/kaltschu)\
**Post date:** [January 6, 2017, 8:33am UTC](https://forums.digi.com/t/connectcore-6ul-with-wvga-lcd-application-kit/17852/5 "2017-01-06T08:33:28Z")

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I updated uboot, linux, and rootfs from the microSD card.

There is no “video” environment variable in either U-Boot or Linux.

=\> printenv  
arch=arm  
baudrate=115200  
board=ccimx6ulsbc  
board\_id=135  
board\_name=ccimx6ulsbc  
board\_version=2  
boot\_fdt=yes  
bootargs\_linux=cma=96M  
bootargs\_nand\_linux=setenv bootargs console=${console},${baudrate} ${bootargs\_linux} ${mtdparts} ubi.mtd=${mtdlinuxindex} ubi.mtd=${mtdrootfsindex} root=ubi1\_0 rootfstype=ubifs rw ${bootargs\_once} ${extra\_bootargs}  
bootargs\_nfs=if test ${ip\_dyn} = yes; then bootargs\_ip=“ip=dhcp”;else bootargs\_ip=“ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:eth0:off”;fi;  
bootargs\_nfs\_linux=run bootargs\_nfs;setenv bootargs console=${console},${baudrate} ${bootargs\_linux} root=/dev/nfs ${bootargs\_ip} nfsroot=${serverip}:${rootpath},v3,tcp ${bootargs\_once} ${extra\_bootargs}  
bootargs\_recovery=setenv bootargs console=${console},${baudrate} ${bootargs\_linux} ${mtdparts} ubi.mtd=${mtdlinuxindex} ubi.mtd=${mtdrecoveryindex} ubi.mtd=${mtdrootfsindex} ubi.mtd=${mtdupdateindex} ${bootargs\_once} ${extra\_bootargs}  
bootargs\_tftp=if test ${ip\_dyn} = yes; then bootargs\_ip=“ip=dhcp”;else bootargs\_ip=“ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:eth0:off”;fi;  
bootargs\_tftp\_linux=run bootargs\_tftp;setenv bootargs console=${console},${baudrate} ${bootargs\_linux} root=/dev/nfs ${bootargs\_ip} nfsroot=${serverip}:${rootpath},v3,tcp ${bootargs\_once} ${extra\_bootargs}  
bootcmd=if run loadscript; then setexpr bs\_ivt\_offset ${filesize} - 0x4020;if hab\_auth\_img ${loadaddr} ${bs\_ivt\_offset}; then source ${loadaddr};fi; fi;  
bootdelay=1  
btaddr=00:40:9D:98:B1:0D  
console=ttymxc4  
cpu=armv7  
eth1addr=00:40:9D:98:B1:0B  
ethact=FEC0  
ethaddr=00:40:9D:98:B1:0A  
ethprime=FEC  
fdt\_addr=0x83000000  
fdt\_file=zImage-imx6ul-ccimx6ulsbc.dtb  
fdt\_high=0xffffffff  
initrd\_addr=0x83800000  
initrd\_file=uramdisk.img  
initrd\_high=0xffffffff  
install\_linux\_fw\_sd=if load mmc 0 ${loadaddr} install\_linux\_fw\_sd.scr;then source ${loadaddr};fi;  
ipaddr=192.168.42.30  
linux\_file=dey-image-qt-x11-ccimx6ulsbc.boot.ubifs  
loadaddr=0x80800000  
loadscript=if test -z “${mtdbootpart}”; then setenv mtdbootpart linux;fi;if ubi part ${mtdbootpart}; then if ubifsmount ubi0:${mtdbootpart}; then ubifsload ${loadaddr} ${script};fi;fi;  
module\_variant=0x02  
mtdbootpart=linux  
mtdids=nand0=gpmi-nand  
mtdlinuxindex=3  
mtdparts=mtdparts=gpmi-nand:3m(bootloader),1m(environment),1m(safe),14m(linux),14m(recovery),128m(rootfs),-(update)  
mtdrecoveryindex=4  
mtdrootfsindex=5  
mtdupdateindex=6  
netmask=255.255.0.0  
recovery\_file=recovery.img  
recoverycmd=setenv mtdbootpart recovery;boot  
rootfs\_file=dey-image-qt-x11-ccimx6ulsbc.ubifs  
rootpath=/exports/nfsroot-ccimx6ulsbc  
script=boot.scr  
serverip=192.168.42.1  
soc=mx6  
stderr=serial  
stdin=serial  
stdout=serial  
uboot\_file=u-boot.imx  
vendor=digi  
wlanaddr=00:40:9D:98:B1:0C  
zimage=zImage-ccimx6ulsbc.bin

Environment size: 2844/131067 bytes

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<div class="post-metadata">

**Author:** ![LeonidM](https://avatars.discourse-cdn.com/v4/letter/l/d26b3c/32.png) [@LeonidM](https://forums.digi.com/u/LeonidM)\
**Post date:** [January 6, 2017, 10:19am UTC](https://forums.digi.com/t/connectcore-6ul-with-wvga-lcd-application-kit/17852/6 "2017-01-06T10:19:18Z")

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does backlight turn on when the module boots? Below is my environment:  
U-Boot dub-2015.04-r5.4+gdbf8184 (Nov 18 2016 - 18:56:44)

CPU: Freescale i.MX6UL rev1.1 528 MHz (running at 396 MHz)  
CPU: Industrial temperature grade (-40C to 105C) at 33C  
Reset cause: POR  
I2C: ready  
DRAM: 256 MiB  
MCA: HW\_VER=1 FW\_VER=0.12  
PMIC: PFUZE300 DEV\_ID=0x30 REV\_ID=0x11  
NAND: 256 MiB  
MMC: FSL\_SDHC: 0  
In: serial  
Out: serial  
Err: serial  
ConnectCore 6UL SOM variant 0x02: Industrial Ultralite 528MHz, 256MB NAND, 256MB DDR3, -40/+85C, Wireless, Bluetooth  
Board: ConnectCore 6UL SBC, version 2, ID 135  
Net: FEC0  
Hit any key to stop autoboot: 0  
=\> printenv  
arch=arm  
baudrate=115200  
board=ccimx6ulsbc  
board\_id=135  
board\_name=ccimx6ulsbc  
board\_version=2  
boot\_fdt=yes  
bootargs\_linux=cma=96M  
bootargs\_nand\_linux=setenv bootargs console=${console},${baudrate} ${bootargs\_linux} ${mtdparts} ubi.mtd=${mtdlinuxindex} ubi.mtd=${mtdrootfsindex} root=ubi1\_0 rootfstype=ubifs rw ${bootargs\_once} ${extra\_bootargs}  
bootargs\_nfs=if test ${ip\_dyn} = yes; then bootargs\_ip=“ip=dhcp”;else bootargs\_ip=“ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:eth0:off”;fi;  
bootargs\_nfs\_linux=run bootargs\_nfs;setenv bootargs console=${console},${baudrate} ${bootargs\_linux} root=/dev/nfs ${bootargs\_ip} nfsroot=${serverip}:${rootpath},v3,tcp ${bootargs\_once} ${extra\_bootargs}  
bootargs\_recovery=setenv bootargs console=${console},${baudrate} ${bootargs\_linux} ${mtdparts} ubi.mtd=${mtdlinuxindex} ubi.mtd=${mtdrecoveryindex} ubi.mtd=${mtdrootfsindex} ubi.mtd=${mtdupdateindex} ${bootargs\_once} ${extra\_bootargs}  
bootargs\_tftp=if test ${ip\_dyn} = yes; then bootargs\_ip=“ip=dhcp”;else bootargs\_ip=“ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:eth0:off”;fi;  
bootargs\_tftp\_linux=run bootargs\_tftp;setenv bootargs console=${console},${baudrate} ${bootargs\_linux} root=/dev/nfs ${bootargs\_ip} nfsroot=${serverip}:${rootpath},v3,tcp ${bootargs\_once} ${extra\_bootargs}  
bootcmd=if run loadscript; then setexpr bs\_ivt\_offset ${filesize} - 0x4020;if hab\_auth\_img ${loadaddr} ${bs\_ivt\_offset}; then source ${loadaddr};fi; fi;  
bootdelay=1  
btaddr=00:40:9D:98:A9:A5  
console=ttymxc4  
cpu=armv7  
eth1addr=00:40:9D:98:A9:A3  
ethact=FEC0  
ethaddr=00:40:9D:98:A9:A2  
ethprime=FEC  
fdt\_addr=0x83000000  
fdt\_file=zImage-imx6ul-ccimx6ulsbc.dtb  
fdt\_high=0xffffffff  
filesize=5068000  
initrd\_addr=0x83800000  
initrd\_file=uramdisk.img  
initrd\_high=0xffffffff  
install\_linux\_fw\_sd=if load mmc 0 ${loadaddr} install\_linux\_fw\_sd.scr;then source ${loadaddr};fi;  
ipaddr=192.168.42.30  
linux\_file=dey-image-qt-x11-ccimx6ulsbc.boot.ubifs  
loadaddr=0x80800000  
loadscript=if test -z “${mtdbootpart}”; then setenv mtdbootpart linux;fi;if ubi part ${mtdbootpart}; then if ubifsmount ubi0:${mtdbootpart}; then ubifsload ${loadaddr} ${script};fi;fi;  
module\_variant=0x02  
mtdbootpart=linux  
mtddevname=bootloader  
mtddevnum=0  
mtdids=nand0=gpmi-nand  
mtdlinuxindex=3  
mtdparts=mtdparts=gpmi-nand:3m(bootloader),1m(environment),1m(safe),14m(linux),14m(recovery),128m(rootfs),-(update)  
mtdrecoveryindex=4  
mtdrootfsindex=5  
mtdupdateindex=6  
netmask=255.255.0.0  
partition=nand0,0  
recovery\_file=recovery.img  
recoverycmd=setenv mtdbootpart recovery;boot  
rootfs\_file=dey-image-qt-x11-ccimx6ulsbc.ubifs  
rootpath=/exports/nfsroot-ccimx6ulsbc  
script=boot.scr  
serverip=192.168.42.1  
soc=mx6  
stderr=serial  
stdin=serial  
stdout=serial  
uboot\_file=u-boot.imx  
vendor=digi  
verifyaddr=88400000  
wlanaddr=00:40:9D:98:A9:A4  
zimage=zImage-ccimx6ulsbc.bin

Environment size: 2943/131067 bytes  
=\>  
I see GUI when the board boots from images programmed with this:  
ftp://ftp1.digi.com/support/digiembeddedyocto/2.0/r4/images/82004060\_1P.zip  
if you do not you might need to RMA your board

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<div class="post-metadata">

**Author:** ![kaltschu](https://avatars.discourse-cdn.com/v4/letter/k/b9bd4f/32.png) [@kaltschu](https://forums.digi.com/u/kaltschu)\
**Post date:** [January 9, 2017, 8:26am UTC](https://forums.digi.com/t/connectcore-6ul-with-wvga-lcd-application-kit/17852/7 "2017-01-09T08:26:30Z")

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It boots into Linux but I get no back-light and no GUI.

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<div class="post-metadata">

**Author:** ![LeonidM](https://avatars.discourse-cdn.com/v4/letter/l/d26b3c/32.png) [@LeonidM](https://forums.digi.com/u/LeonidM)\
**Post date:** [January 9, 2017, 8:38am UTC](https://forums.digi.com/t/connectcore-6ul-with-wvga-lcd-application-kit/17852/8 "2017-01-09T08:38:05Z")

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are you able to test the LCD kid with another board? Are you connecting it to LVDS connector on cc6ul SBC? I suspect you have an issue either with the kit or the board. it should work with no tricks and it does work here for me. contact support and ask for RMA

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<div class="post-metadata">

**Author:** ![kaltschu](https://avatars.discourse-cdn.com/v4/letter/k/b9bd4f/32.png) [@kaltschu](https://forums.digi.com/u/kaltschu)\
**Post date:** [January 9, 2017, 10:19am UTC](https://forums.digi.com/t/connectcore-6ul-with-wvga-lcd-application-kit/17852/9 "2017-01-09T10:19:39Z")

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I have a CC6 (not UL) SBC, which boots into the GUI on HDMI. The LCD does not work there either. I will request a replacement LCD.