The openPOWERLINK master stack on Altera Cyclone V SoC is executed in a bare metal environment. Here the time critical network support layers of openPOWERLINK run as a stand alone driver application on NIOS II softcore processor in the FPGA fabric. The user support library along with a demo master application run on one ARM Cortex A9 Core 0 in the hard processing system (HPS). The two applications (demo master and driver) use a fast shared memory interface on FPGA DDR3 for data exchange and on OCM (M9K memory) for control information exchange. The design uses in-built Ethernet interface with the openPOWERLINK-optimized controller openMAC which enables low SoC jitters.
The hardware items required to run openPOWERLINK Hardware MN demo on Altera Cyclone V SoC are as follows:
- 1 Altera Cyclone V SoC development board to act as the openPOWERLINK Master
- 1 Linux development PC
- 2 Linux PC to act as the openPOWERLINK Slave
- 1 Micro SD Card Reader
- 1 Micro SD Card
- 4 Ethernet Cables
- 1 Network switch or hub
- 1 Mini USB serial cable
Following are the software packages and its dependencies to be downloaded to run openPOWERLINK Hardware Master demo on Altera Cyclone V SoC.
- Ubuntu 12.04/14.04
- Altera Quartus II v14.0.200 (To be installed on the development PC)
- To download the pre-built binaries – click here
This section describes the steps to be carried out to run openPOWERLINK Hardware MN demo on Altera Cyclone V SoC. To convert the SD card as bootable medium for Altera Cyclone V SoC:
- Open an SoC EDS 14.0 Command Shell and run as administrator to be able to create partitions in SD card.
- Prepare the SD card using the following commands after connecting it:
- dd if=${SOCEDS_DEST_ROOT}/embeddedsw/socfpga/prebuilt_images/sd_card_linux_boot_image.img of=/dev/<sd_card_drive> bs=1M
- alt-boot-disk-util -p preloader-mkpimage.bin -a write -d <sd_card_path>
- Copy the following files to the SD card:
- BOOT.bin
- fpga.rbf
- Remove the sd card
- Type the following command
- cat /proc/partitions
- Note down the devices listed
- Connect the SD card
- Type the following command
- cat /proc/partitions
- Note down the devices listed
- The difference between the two lists is the SD card drive
- Connect the USB-to-miniUSB cable from development PC to board connector HPS UART(J8)
- Insert the SD card into Altera Cyclone V SoC Master Board and power up the board
- Connect the board connector(J33/J34) to the local network, this provides the ethernet PHY connection for the FPGA in Altera Cyclone V SoC
- Open a terminal program
- Install Minicom using the command:
- sudo apt-get install minicom
- Run Minicom using the command:
- sudo minicom -s
- Go to serial port set up
- Set Serial device as /dev/ttyUSB0
- Set Hardware Flow Control to NO
- Save the setup
- Now the openPOWERLINK MN log can be viewed in the serial terminal
This section describes the steps to be carried out to run openPOWERLINK Linux CN demo.
- Open a new terminal on the Linux PC to run openPOWERLINK slave
- Change to the driver daemon install directory on slave PC
- cd <path to driver application> (Path: /openPOWERLINK_c5soc/Linux_CN1/oplk_bin/oplkd-pcap/)
- Run the PCAP driver daemon using the following command:
- sudo ./oplkcnd-pcap
- Open another terminal
- Change to the slave application install directory on slave PC
- cd <path to slave application> (Path: /openPOWERLINK_c5soc/Linux_CN1/oplk_bin/demo_cn_console/)
- Run the slave application using following command:
- sudo ./demo_cn_console
- Repeat the openPOWERLINK slave demo application steps on the slave 2 (CN32) Linux PC.