CoreCDP version 2.3.3 has been released!
2.3.3 is an update release that adds support for building on Ubuntu 12.04 LTS and includes minor bug fixes. Please see the release notes for all changes.
Download:
CoreCDP 2.3.3 (2890 downloads )
CoreCDP 2.3.3 Release Notes
Date of Notification: 05/12/2014
Products affected: Certain MTCDP products with 6ns SDRAM installed
Issue Reported: Intermittent lockups of OS in the field.
Symptoms:
Heartbeat LED stops flashing.
Unit is unresponsive.
Debug port is unresponsive.
Power cycle clears.
Serial number range affected:
16711849 – 17627298
Serial numbers NOT affected within the above range:
17524134
17537320 – 17537324
17540271
17591323 – 17591326
17591329 – 17591330
17591458
17601958 – 17601994
17602242
17604628 – 17604632
17614141 – 17614169
Starting serial numbers already updated:
17627299 and greater or units with a DOM of 5/2/2014 or later
Details:
One customer reported intermittent lockups of deployed MTCDP
Not all of the customer’s deployed MTCDP units were showing an issue.
The time to lockup varied from a few hours to a few weeks.
Analysis:
A few of the units that were showing an intermittent lockup were retrieved from the customer. There was an intermittent interaction between the SDRAM and the default slow slew rate setting of the MTCDP that would cause access errors on some units.
The SDRAM is a newer 6ns part that was qualified as an approved replacement part for an EOL 7.5ns part. At the time of the approval of the 6ns SDRAM in Q3/2013, there was no indication of issues with the MTCDP using this replacement SDRAM.
The MTCDP has been shipping with a slow slew rate setting since the release of CoreCDP 2.0.1 in 2011. The previous 7.5 ns SDRAM has never shown to have an issue with the slow slew rate setting.
MTS Action: Product put on hold and new boot code created to correct issue.
We changed the setting in the boot code of the processor to set the SDRAM controller slew rate to FAST instead of SLOW, which corrects the issue of intermittent lockups of units previously showing this issue. Changing the boot code does not affect the Core CDP main code already programmed into a unit.
Products are being updated at the factory and shipments have resumed
Customer Action:
It is recommended that customers download the update from the web and update their boot code if they experience an issue or as a precaution to avoid possible future issues.
Instructions on how to update the boot code:
1. Download the file: http://www.multitech.net/corecdp/images/2.2.2/mtcdp/at91bootstrap-mtcdp-2.13-r1.corecdp6-fast-slew-rate.bin
2. To flash the new boot code, please do the following:
a. Copy the fast slew rate bin file into your TFTP server folder
b. rename the file to “oe_bootstrap.bin“.
c. Restart your CDP and go into the U-boot prompt.
d. Enter the command: printenv [This will list out the current U-boot environment.]
Look for the variables:
-bootstrap_file=oe_bootstrap.bin [make sure it exists]
– ipaddr=xxx.xxx.xxx.xxx [This to your CDP ipaddress]
– serverip=xxx.xxx.xxx.xxx [Modify to your TFTP server ipaddress]
Notes: Type help for information on how to set/unset the variables.
d. Then type: run tftp_bootstrap
e. Once done, type: reset
f. You should see the message: FAST slew rate
If you have questions or cannot update your product yourself, please contact product support for additional assistance.
At our web portal: https://support.multitech.com
Or email: tsupport@multitech.com
Multi-Tech is pleased to announce the release of the next version of MultiConnect™ SDK (Software Development Kit), Version 1.1.4. The MultiConnect™ SDK includes software libraries, sample applications and a developer’s guide to help people develop their custom M2M applications more rapidly than ever before. The SDK libraries are written in the Java programming language making the OCG’s Embedded Linux environment easily accessible to a wide range of developers. These libraries provide a number of utilities for accessing device interfaces and peripherals, managing your cellular connection, processing data and publishing information to other systems. Go to the following link to download your copy:
It is also recommended that before running any SDK derived applications that you upgrade your OCG device to CoreCDP 2.1.0 or greater:
Notable enhancements in Version 1.1.4 include:
• Upgraded support for cellular link configuration and management
• Basic SMS messaging support
• Support for new Telit H5 and EV3 radios
• Improved Sample Applications
CoreCDP version 2.2.2 has been released!
2.2.2 is an update release that adds new hardware support and fixes a system reboot regression introduced in 2.1.0.
Key changes:
Download:
CoreCDP 2.2.2 (3469 downloads )
Please read the CoreCDP 2.2.2 Release Notes for more information.
Multi-Tech is pleased to announce the release of the MultiConnect™ SDK (Software Development Kit). The MultiConnect™ SDK includes software libraries, sample applications and a developer’s guide to help people develop their custom M2M applications more rapidly than ever before. The SDK libraries are written in the Java programming language making the OCG’s Embedded Linux environment easily accessible to a wide range of developers. These libraries provide a number of utilities for accessing device interfaces and peripherals, managing your cellular connection, processing data and publishing information to other systems. Go to the following link to download your copy:
It is also recommended that before running any SDK derived applications that you upgrade your OCG device to CoreCDP 2.1.0 or greater.
CoreCDP version 2.1.0 has been released!
This is a minor update release of CoreCDP intended to provide better Java support through an updated version of OpenJDK.
Key changes:
Download:
Please read the CoreCDP 2.1.0 Release Notes for more information.
CoreCDP version 2.0.2 has been released!
This is a new major release of CoreCDP with an updated toolchain, a newer Linux kernel, and newer versions of most software. The new release also makes use of the new BBLAYERS feature in OpenEmbedded.
Key changes:
Download:
Please read the CoreCDP 2.0.2 Release Notes for more information.
Multi-Tech has some upcoming webinars planned for anyone wishing for an overview of the Open Communications Gateway family of products. This includes the existing MultiConnect™ OCG-D device product and the new MultiConnect™ OCG-E embedded version which will start shipping in late November.
To sign up, visit the Multi-Tech Developer Webinars page.
Two major announcements today!
The existing Cellular Development Platform products are now known as
MultiConnect™ Open Communications Gateway – Device or MultiConnect™ OCG-D
For more information, see the product information page on multitech.com.
Along with the new product family name, Multi-Tech introduces MultiConnect™ OCG-E, an embedded version of the Open Communications Gateway for those wanting to embed the hardware into their own design. This allows the developer to leverage the existing OCG technology and CoreCDP software but gives them full control over the end design of their product, such as a custom footprint and chassis and the ability to use only the interfaces (ethernet, serial, I2C, etc) that are needed.
For more information, see the product information page on multitech.com.
CoreCDP is built using OpenEmbeded and for those new to it, here is a good overview article in EE Times that explains the basics.
Open Embedded: An alternative way to build embedded Linux distributions