Knowledge Base

Configuration: 45 result(s) found
Installation: 25 result(s) found
Hardware: 13 result(s) found
Miscellaneous: 36 result(s) found
Troubleshooting: 39 result(s) found


There are 54 search results for ""
What ports are used with the ADDP protocol?
Category: Configuration, Hardware, Installation, Troubleshooting
ADDP uses udp port 2362 and a mulicast ip address of You will need to enable these on your firewall for the ADDP protocol to work for the device discovery utility.
How to install and use Wireshark (Ethereal) for Ethernet Packet Sniffing
Category: Installation, Miscellaneous, Troubleshooting
Wireshark Installation and Usage This document was put together to assist in the installation and usage of an Ethernet packet sniffing utility called Wireshark. To install Wireshark you will need to go to ...
Use of content from Digi manuals
Category: Miscellaneous
Content from Digi manuals may be used by our OEM customers in their own documentation subject to the following conditions: Clearly state: "Parts of this manual are used by permission of Digi, Inc." Submit a copy of the...
Building JFFS2 rootfs fails due to mkfs.jffs2 returns non zero exit code (Aborted). E.g.: /usr/local/DigiEL-5.0/scripts/ line 98: 9723 Aborted mkfs.jffs2 ...
Category: Installation, Troubleshooting
This is a bug in the Linux tool mkfs.jffs2 occuring on some processors/Linux distributions. To fix it, install an updated mkfs.jffs2 binary into your toolchain, e.g. into: /usr/local/LxNETES-2.3/arm-elf/bin/mkfs.jffs2 /targets/yourproject/LxNETES-...
How do I program my Linux images onto a Digi embedded module?
Category: Configuration, Installation, Miscellaneous
Single (or batch) modules you get for Linux, will only come with a pre-installed unreleased U-Boot intended for quality test purposes at Digi. Be aware this version will change from time to time: so always reprogram with your own customized U-Boot ve...
Application crashes during runtime when booted via TFTP (nfsroot) and root filesystem seems to be incorrect.
Category: Configuration, Troubleshooting
If you do have several Digi Embedded Linux ESP projects, sharing the same nfsroot directory and you run "make install" on them, existing files from the other project will be overwritten, but files added in other projects will not be removed. This can...
How to recompile busybox 1.11.3 with Digi Embedded Linux 4.2 (e.g. enable sendmail)
Category: Configuration, Miscellaneous, Installation
extract the busybox source from the Digi Embedded Linux DVD# mount cdrom# tar xjf $PATHTODVD/toolchain/packages/busybox-1.11.3.tar.bz2 check for any patches Digi has done on busybox# find $PATHTODVD/toolchain -iname \*busybox\*check the output for ...
How to test a serial device connected to a Digi ConnectCore module running Linux
Category: Installation, Miscellaneous, Troubleshooting
Sometimes you need to run a serial terminal program on an embedded device to check from your shell how a connected serial device is answering on characters beeing send to it.Below we describe how to compile the simple Linux terminal program miniterm ...
creating partitions and updating U-Boot from U-Boot bootscript / autoscript does not work due to interactive inputs required
Category: Configuration, Miscellaneous, Troubleshooting
U-Boot autoscript feature is described in /usr/local/DigiEL-5.2/docs/Software/U-Boot_Reference_Manual.pdf Revision H in section 6. However when using this for production, it does not allow to run "flpart" or "update uboot" from this, as those command...
securing embedded Linux on ConnectCore or Connect ME 9210 module against external access
Category: Configuration, Miscellaneous, Troubleshooting
To disable the telnet daemon, patch your rootfs/etc/inittab and comment the line starting telnet with a "#" With the Digi Embedded Linux ESP create a rootfs project, select configure project, Roofs Configuration->Pre-built applications deselec...
The operating system (Linux, WinCE, or NET+OS) does not boot on a ConnectCore module with NAND flash, but the same images are booting on another module with the same part number.
Category: Hardware, Installation, Miscellaneous, Troubleshooting
During programming of the operating system or filesystem image noticed: # update rootfs ... MtdRewrite: rewrite failed. Maybe this is a bad block. *** ERROR: Write failed at block @ 0x00540000 NAND flash chips can get bad blocks during runt...
Synchronize your Digi Connect or ConnectCore module running Digi Embedded Linux with an external time server
Category: Configuration
Digi Embedded Linux 5.2 comes with pre-compiled busybox rdate and Openntpd client/server application to be optionally added to the root file system via configuration checkbox in the Digi ESP. If you want the Linux time to be initially updated du...
java.lang.OutOfMem with Digi Embedded Linux ESP
Category: Configuration, Installation, Troubleshooting
Close the ESP. cd /usr/local/DigiEL-*/digiesp ln digiesp.ini digiesp.bin.ini vi digiesp.bin.ini increase the memory and use a default workspace in your homedir with: -showlocation -vmargs -Xms128m -Xmx256m -Dosgi.instance.a...
How to configure Linux kernel to run i.MX51 in 24bit color mode
Category: Configuration
The i.MX51 or Wi-i.MX51 module provides 24bit color on pins J2:1-24. If you connect two LCDs in dual display mode the color on each LCD is reduced to 18Bit. Thats why on the Digi JSK (GA) board the LCD1 and LCD2 connectors provide only 18bit color. ...
How to configure Linux kernel to run i.MX51 UART1 in full featured mode
Category: Configuration
The i.MX51 or Wi-i.MX51 module provides a full featured UART1 with all hardware handshake lines. In the Digi Linux ESP DEL5.6 select a Linux kernel project. Open the project Linux kernel configuration. Select System Type, Freescale MXC Implementati...
When debugging i.MX51 from the Digi Linux ESP, getting: debug MX51 unable to instantiate class com.digi.lxnetes.debug.launch.EmbeddedCommandFactory
Category: Configuration, Miscellaneous, Troubleshooting
In the "run configuration" select debugger tab and select GDB command set: "Standard".
Implement IPv6 services with Digi ConnectCore modules (or Digi ConnectME 9210) running Digi Embedded Linux
Category: Configuration, Miscellaneous, Troubleshooting
Status of IPv6 in Digi Embedded Linux 5.2 U-Boot does not support IPv6 and there is no plan to add that support to U-Boot Linux kernel 2.6.28 has already support for IPv6. It is not enabled in the default configuration but customers can enabl...
hotfix or update refuses to install on Digi Linux ESP
Category: Configuration, Installation, Troubleshooting
Digi Embedded Linux has to be installed as non-root user. Only this user should launch the ESP for development or update. The Workspace directory should be outside of the installation directory /usr/local/DigiEL-*/. If an update is failing, try ...
How to recover the ConnectCore Wi-i.MX51 GA module using MicroSD in Linux
Category: None
If U-Boot in flash fails to boot & NO output is being observed on the serial port during Power up, you can try recovery using a MicroSD Card. For the recovery you need: GA JSK Development board. A Micro SD Card. Part one, c...
Why do products have an altitude limit?
Category: Hardware, Miscellaneous, Troubleshooting
1 Altitude affects the cooling ability of the device. At higher altitudes, the reduced air pressure reduces the rate at which heat from the device can be dissipated to the surrounding ambient. 2 Products temperature rating assumes use at sea leve...
cttyhack: can't open /dev/ttyS0: No such file or directory
Category: Configuration, Installation, Troubleshooting
On hardware platforms like ConnectCore 9M2443 the serial driver might create device files like /dev/ttySAC*, for NetSilicon processors they might be created as /dev/ttyNS*. Some of the startup scripts refer to the standard UART device file names: ...
NANDF_* pins on i.mx51 are connected to GND and module is not booting up.
Category: Configuration, Hardware, Installation, Troubleshooting
Reason behind :- All of the signals for the NAND Flash interface are used during boot by the CPU, even if only a smaller collection of these pins are used by the real Flash device itself. A customer might think that since some NAND Flash devices d...
How do I write assembly code in .C file of a NET+OS application project ?
Category: Configuration, Hardware, Miscellaneous
Refer inclusion of assembly in gnu C code. Sample Code :- {please note that in the below code snippet, double qoutes are replaced with single quotes (') for search engine optimization} #include <stdio.h> #include <stdlib.h> ...
How to get rx_signal value of wln_status structure in dBm units on devices running NET+OS.
Category: Configuration, Installation, Miscellaneous, Troubleshooting
Wifi RSSI strength is populated in rx_signal (structure variable) of wln_status structure. In API Reference Manual, if description for rx_signal field is NOT specifying that it is dBm units, then you need to follow th...
How to recover the ConnectCore Wi-i.MX51 GA module using MicroSD in Windows XP
Category: Configuration, Hardware, Troubleshooting
If U-Boot in flash fails to boot & NO output is being observed on the serial port during Power up, you can try recovery using a MicroSD Card. For the recovery you need: GA JSK Development board. A Micro SD Card NOTE: This p...
How do I recompile Digi pre-compiled binaries with different options, with Digi Embedded Linux 5.7 toolchain. Example: wpa_supplicant
Category: Configuration, Installation, Miscellaneous, Troubleshooting
Mount the Digi Embedded Linux 5.7 Live DVD and copy the Digi toolchain patches to a local directory: example package: wpa_supplicant # cp -r /media/DigiEL_LiveDVD/toolchain/del_toolchain/packages/wpa_supplicant/ ~ # chmod -R u+rwX ~/wpa_supplica...
How to update rescue partitions on ConnectCore Wi- i.MX51 modules.
Category: Configuration, Hardware, Troubleshooting
Rescue partitions support has to be enabled in Uboot. Create a Uboot Project and in configure, make sure that Rescue Partition Mechanism is selected in U-Boot Configuration > U-Boot Settings. Build and update this image onto the module. To up...
How to create multiple users in Digi Embedded Linux (5.7 onwards)
Category: Configuration, Miscellaneous
1. Create a default FULL Project in DEL , build and update these images onto target (eg: ccwmx51). 2. Connect to serial console of target. 3. By default you will be having a user 'default' UID:1000 with group 'users' GID:100 . p { margi...
How do I get a user login prompt in Digi Embedded Linux bootup on Connect & ConnectCore devices ?
Category: Configuration, Miscellaneous
DEL with kernel or above will support multiple users on target boards. ie: 5.7, 5.8, 5.9 etc. To get user login prompt in Linux boot follow the below :- Create a DigiEL-Kernel/Rootfs/U-boot Project in Digi ESP for DEL Edit work...
Ping command doesn't work in second ethernet interface in linux if both are configured in same subnet
Category: Configuration, Miscellaneous, Troubleshooting
If two interfaces are in same subnet then there could be a chance for linux kernel to choose the first to appear on routing table. use route command to cross check routing table. Because chances are there in linux kernel where it sees...
How to boot Wince image from USB stick on Wi-i.MX51 JSK?
Category: Configuration
1. USB stick must be formatted either in FAT, ext2 or ext3 file system.    (This knowledge base article explains FAT format with one partition). 2. Copy default wince image (wce-CCXMX51) onto the USB stick. 3. Connect USB stick to o...
How to recompile Qt with Digi Embedded Linux 5.8
Category: Configuration, Installation, Miscellaneous, Troubleshooting
On a Linux PC where you have installed your Digi Embedded Linux ESP and toolchain, typically under /usr/local/DigiEL-*/ create a local working directory and change into it. E:g. # mkdir ~/DEL58toolchain # cd ~/DEL58toolchain Mount the Digi Emb...
ConnectCore NAND Flash has bad blocks, how to get rid of it?
Category: Configuration, Hardware, Miscellaneous, Troubleshooting, Installation
Bad Blocks are inherent to Nand Flash. Once a block become bad, it is useless forever, you cannot get rid of it. These are maintained in Flash using a Bad Blocks Table(BBT) and bad blocks marking functionality. ->>What is Nand Fla...
How to disable the cursor when displaying a full screen splash image in Linux
Category: Configuration, Troubleshooting, Miscellaneous
to disable the frame buffer console cursor, you can pass the following to the kernel command line via U-Boot: setenv std_bootarg vt.global_cursor_default=0 saveenv You can re-enable it during runtime from Linux command line with: # echo -e ...
How to display a full resolution Linux boot logo
Category: Configuration, Miscellaneous, Troubleshooting
When trying to use your own Linux boot logo (instead of Tux penguin splash) according to Digi ESP instructions to change logo_custom_clut224.ppm, you will notice that higher resolution logos will not be displayed. In order allow higher or...
How to display a centered Linux boot logo with DEL5.6 or DEL5.7
Category: Configuration, Installation, Miscellaneous, Troubleshooting
Kernel config option for a centered boot logo is available since DEL5.8. To add this feature to Digi Embedded Linux 5.6 (DEL5.6) or DEL5.7 please save patch below as "centeredlogo.patch" and apply the patch. For DEL5.6: # cd /usr/local/Digi...
How to find out the date code and manufacturing location information of Digi Products.
Category: Configuration, Hardware, Installation, Miscellaneous
Depending on the location the units are built effects the orientation, linked below is the date code from USA or Thailand.  The date code is 4 digits, 2 digit year and 2 digit week (YYWW) so in these examples the 26th week of 2012. Thailand M...
Difference between .ubifs and .ubi file systems on CCWi-i.MX51 and CCWi-i.MX53
Category: Miscellaneous
The UBIFS image is a file system image.It works on top of a UBI volume.You cannot flash it on the raw flash device */dev/mtd*. You need to create UBI volume first and then update the volume with UBIFS image. The UBI image is a UBI volume image. It...
How to setup a (Wi-)i.MX51 or (Wi-)i.MX53 with default (factory) Android images? Updated from Android 1.1 to 1.2 or migrated a WinCE or Linux to Android and see a kernel panic.
Category: Troubleshooting, Configuration
From your Android Application Development Kit (aadk) copy default files to your TFTP server, e.g.: cp /opt/Digi/Android/aadk-1.2/images/ccwmx53js/* /tftpboot presumed you have U-Boot 2009.08 DUB- or newer already running otherwise on U-...
uboot tftp transfer is not working on office/work laptop, but works on desktop, why?
Category: Configuration, Hardware, Installation, Troubleshooting
Office laptops usually will have VPN installed. It appears that some VPN Clients will reconfigure MTU value to 1300 bytes, presumably as a requirement of the VPN tunnel or to minimize delays. This means that when using a TFTP server with the opti...
how to use different GPIOs for gpio_test_c example
Category: Configuration, Hardware, Troubleshooting, Miscellaneous
The gpio_test example is using BUTTON2 and LED2 on (Wi-)i.MX53. In order to use different pins, you need to modify the example application gpio_test.c: } plat_list[PLAT_NONE + 1] = { .. MK(CCMX53JS, "ccmx53js", "BUTTON2", "LED2", MX5X_GPIO(4,1), ...
Booting Linux or Android, you observe a message like: Ganges-SDIO WLAN: probe of mmc0:fffd:1 failed with error 1 and you notice WiFi does not work.
Category: Configuration, Miscellaneous, Troubleshooting
During manufacturing test, Digi operations switches driver to RF evaluation mode. On some batches Digi missed to switch back to normal mode, which is causing the Linux WLAN drivers not to work. To fix the problem set U-Boot environment variable w...
By default Linux kernel logo will be disabled after about 10min. Meaning the screen gets blank. This holds also for custom kernel logos.
Category: Configuration, Miscellaneous, Troubleshooting
In order to keep the logo being displayed, you can pass consoleblank=0 kernel command line during boot (from U-Boot command line prompt): # setenv std_bootarg consoleblank=0; saveenv Or during runtime (e.g. with a script in /etc/init.d) dis...
Understanding MTBF (Mean Time Between Failures)
Category: Hardware, Installation, Miscellaneous
MTBF is defined as the point in time at which 1/e devices on average will still be operational (1/e is approximately 37%) Furthermore, MTBF specifically excludes wear-out factors.  A fan’s MTBF may be dozens of years but it will  i...
How to install multiple releases of Digi Embedded Linux(DEL) together
Category: Configuration, Installation, Miscellaneous, Troubleshooting
Default DEL installation folder is /usr/local/DigiEL-x.y and should not be installed as root. Declarations: Digi Embedded Linux package comes with an Eclipse based IDE 'Digi ESP' .  Digi has tested Digi ESPs on - 5.2 on Kubuntu 8.10 ...
WiFi interface not working on Wi-i.MX28, Wi-i.MX51 or Wi-i.MX53  Linux
Category: Configuration, Installation, Miscellaneous, Troubleshooting
If your Wi-i.MX28 boots up with a boot log message like: Starting network. modprobe: chdir( No such file or directory Loading ath6kl_sdio module: [FAILED] ifconfig: SIOCGIFFLAGS: No such device Starting dropbear sshd: OK...
How to run D-Bus session bus on DEL modules?
Category: Configuration, Miscellaneous, Troubleshooting
When you work with QT's Inter-Process Communication (IPC) and Remote Procedure Calling (RPC) mechanism , ie: D-Bus , you might have faced some errors like shown below: Failed to start message bus:Failed to read directory '/etc/dbus-1/session....
How to work with ADDP device discovery protocol and devices running embedded Linux like ConnectCore, ConnectCard, Digi Connect ME 9210
Category: Configuration, Installation, Miscellaneous, Troubleshooting
In order to be able to search for embedded Linux devices in your local network with the ADDP protocol using broadcasts/multicasts you need to add the "addpd" to your root file system. This can be done in Digi Embedded Linux ESP in a rootfs project j...
Running QT application on DEL modules shows NO output in LCD display
Category: Configuration, Hardware, Troubleshooting
A Qt for Embedded Linux application requires a server application to be running, or to be the server application itself. Any Qt for Embedded Linux application can be the server application by constructing the QApplication object with the QApplication...
Digi Embedded Linux (DEL) graphical project or kernel configuration fails with: make -k xconfig HOSTCXX scripts/kconfig/qconf.o make: ***[xconfig] Error 2
Category: Configuration, Installation, Miscellaneous, Troubleshooting
Sometimes you see more details, e.g.: make -k xconfig   CHECK   qt sed < /usr/local/DigiEL-5.9/scripts/scripts/kconfig/lkc_proto.h > scripts/kconfig/lkc_defs.h 's/P(\([^,]*\),.*/#define \1 (\*\1_p)/'   HOSTCC&n...
U-Boot prompt change is not reflected. Prompt remains unchanged.
Category: Configuration, Troubleshooting
The following patch which will be released with DUB-1.6.4.x or higher fixing the problem. You need to patch the U-Boot (1.6.3.x) sources in /usr/local/DigiEL-5.9/bootloader/u-boot-denx/ and after patching create a new U-Boot project (delete the old ...
U-Boot project rebuild throws error
Category: Troubleshooting, Miscellaneous, Configuration
When using DEL- rebuilding an U-Boot project you will get: make -k rebuild Generating include/ Generating include/ make[1]: *** No rule to make target `ccardwmx28js_config'. make: *** [uboot_distclean] Error ...
When running Android installer under Linux, getting: 2: Syntax error: end of file unexpected (expecting ")")
Category: Installation, Troubleshooting, Configuration, Miscellaneous
The Android installer is maybe a 32bit LSB ELF executable. You can check this with: file showing you something about 32bit. If you are running a 64bit Ubuntu you have to install the 32bit libraries: sudo apt-get install ...
OpenSSL Heartbleed fix for Digi Embedded Yocto 1.4
Category: Configuration, Installation, Miscellaneous
The OpenSSL Heartbleed fix for Digi Embedded Yocto 1.4  is available in the github repositories. The instructions to fetch the Digi Embedded Yocto 1.4.1 update are as follows -  For customers who are deploying Digi Embedded Yocto for t...
Your M2M Expert®for Businessfor Developers
Contact Us
Newsletter SignupYouTubeGoogle+FacebookCopyright © 1996-2014 Digi International Inc. All rights reserved. Legal