Can't initialize AXI4Stream of IP core generated from MATLAB

Hi,

I tried to run the matlab AXI4Stream demo (http://www.mathworks.com/help/hdlcoder/examples/getting-started-with-axi4-stream-interface-in-zynq-workflow.html?s_tid=srchtitle), and there is no error during running the workflow advisor. But when I run the interface model in external mode, it reports that Simulink fails to connect Zedboard.

Further, I manually run the interface model executable file build from Simulink on Zedboard. And it reports that "Open failed: No such file or directory", because there is no "dma_ch*" found when executing axi4StreamInit().

Does anyone have an idea of how to fix the error?

Thanks and regards

Shawn

0 Former Member over 9 years ago
First, make sure you have installed these hardware support Add-Ons:

HDL Coder Support Package for Xilinx Zynq-7000

Embedded Coder Support Package for Xilinx Zynq-7000

From MATLAB --> 'Add-Ons' tab --> Get / Manage Add-Ons
This is an Ethernet connectivity issue between your PC and ZedBoard. You must connect your computer directly to ZedBoard using an Ethernet cable; don't use a router. Set up the Ethernet network adapter on your computer to use an IP address on the same subnet as the IP address of ZedBoard.
If you aren't sure of the IP address of the ZedBoard, one way to check it is to issue the 'ifconfig' command at the Linux command line from a terminal program such as Tera Term running on your PC(http://ttssh2.sourceforge.jp/) To do so, you need to connect a USB cable from your PC to the ZedBoard micro-USB connector labelled 'UART'.
Make sure to setup the Zedboard as described in the "Set up Zynq hardware and tools" section of http://www.mathworks.com/help/hdlcoder/examples/getting-started-with-hardware-software-codesign-workflow-for-xilinx-zynq-platform.html
Make sure you have the SD card image provided by the Embedded Coder Support Package for Xilinx Zynq-7000, as described in step 3.
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0 Former Member over 9 years ago in reply to Former Member

Thanks for your suggestions.
After checking the setup of the demo project, I found that there is no axidma item in my device tree file. Add axidma and the problem is solved.
Thx!
Shawn
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