SYS TEC electronic (http://www.systec-electronic.com) has released version 1.6 of the openPOWERLINK Protocol Stack.
This release contains a new demo project for the Development Board DBC3C40 (Mercury Board) from EBV. The demo was implemented on a bare-metal Nios II Soft-CPU running on an Altera Cyclone III FPGA. The implementation achieves a Poll-Response latency of 1 µs and cycle time as low as 400 µs. Furthermore, with this release we integrated the POWERLINK Configuration Manager module previously contributed by Kalycito. It allows for automatic downloading of device configuration data to attached nodes at start-up of a POWERLINK network. The required device configuration files can be created with the graphical user interface openCONFIGURATOR (http://sourceforge.net/projects/openconf/) also developed by Kalycito.
The major changes of the protocol stack are:
- Controlled Nodes now support Ethernet controllers with auto-response feature
(to reach a Poll-Response latency of 1 µs and cycle times down to 400 µs)
- support for targets without operating system (bare-metal) added
- PDO mapping performance improved and filters for Poll-Response reception/cross-traffic implemented
- support added for Linux Kernel version 2.6.31 (also on x86_64 architecture)
- various code clean up
Please see the included revision history and update guide for further information.
SYS TEC electronic also published a new openPOWERLINK LiveCD for the new stack version. Furthermore, it is based on Knoppix 6.2 to decrease boot-up time. Simply connect one or more Controlled Nodes to a PC with a Realtek RTL8139-based network card and boot from the CD. Follow the steps shown on the screen and you will have your own POWERLINK network up and running in 5 minutes. This LiveCD needs no installation. It provides the full openPOWERLINK Stack without altering your harddisk. The LiveCD supports instant development of own POWERLINK applications. The required openPOWERLINK source code and tool-chain is pre-installed on the LiveCD. Saving your files and modifications on USB stick or harddisk prevents your data from getting lost when restarting the system.
To get the LiveCd just register on our website and download the ISO image free-of-charge from http://www.systec-electronic.com/openpowerlink_livecd
At the Chemnitz Linux Days, which will take place on March 13 and 14, 2010 in the central lecture hall and seminar building of the Chemnitz University of Technology, Daniel Krüger from SYS TEC electronic will give a talk on openPOWERLINK. Krüger will provide insights into the POWERLINK protocol.
He will demonstrate the implementation of the protocol stack under Linux and on FPGAs by means of a small POWERLINK network. SYS TEC electronic will also have their own booth at the conference. Directions and the complete program are available at http://chemnitzer.linux-tage.de/2010/