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CC2531 USB dongle and Embedded Linux board

Mosi
Intellectual 735 points
Other Parts Discussed in Thread: CC2531, Z-STACK, CC2530, CC2538, CC2531EMK, TIDC-ZNP-HOST-SW3

I have bought a couple of CC2531 USB dongles and I have an Embedded Linux board which is not a BBB. Apparently Z-Stack Linux Gateway is compiled for BBB only. And apparently there are no sources for free so I could compile them for my own target. 

For a HA project I have created a network of CC2530 devices and I was wondering how can I use my board and a CC2531 dongle to communicate with that network. Suppose I want to make CC2531 dongle a coordinator so user could send commands to other devices (ZR or ZED) through a GUI which is running on my Linux board. 

What options do I have?  How can I connect the USB dongle to my board and start it as a coordinator and everything? 

My board already recognizes CC2531 as "CC2531 USB Dongle" but that's all. Do I have to compile sources so I can communicate with dongle directly or is it better if I programmed CC2531 with a hex file so it appears as a serial device and communicate with it with serial commands? (if this is the case then which hex file should I use?

  • 0
    Guru 735695 points
    You can sign SLA with TI to get full source code of Z-Stack Home Linux GW and build it for your own Linux board.
  • 0 in reply to YiKai Chen
    Intellectual 735 points
    Thank you.
    Where should I start? I mean I've never done something like that before!

    Plus what if I couldn't do that? Is there an alternative way like what I said about CC2531 being a serial device and not going thorough all cross compiling and stuff? Maybe it's easier to do that instead of cross compiling. I don't know.
  • 0 in reply to Mosi
    Guru 735695 points
    The alternative is to use Portable ZigBee Plug-In Software Framework for any OS. You can refer to www.ti.com/.../TIDC-ZNP-HOST-SW3.
  • 0 in reply to YiKai Chen
    Intellectual 735 points

    Well that is CC2538 I think. What about CC2531?
    Is there something like that for CC2531 ?

  • 0 in reply to Mosi
    Guru 735695 points
    It can work on CC2531 too.
  • 0 in reply to YiKai Chen
    Intellectual 735 points
    Hi YiKai.
    I was just looking in "C:\Texas Instruments\Z-Stack Home 1.2.2.42930\Projects\zstack\ZNP\CC253x" and there is a znp.eww project with a couple of workspaces for CC2530 and CC2531 like :

    CC2531 - Debug

    CC2531 - TestHex

    CC2531 - ProdSBL

    CC2531 - ProdHex

    Which I'm not sure what those are. (If you know please explain)

    To sum it up, is there a project or firmware in which CC2531 dongle can work as a ZNP through it's USB port in Embedded Linux platform?

    I believe the dongle must somehow be recognized as a TTY device to Embedded Linux OS so one can work with it like a simple serial device. That's what I had in mind.
  • 0 in reply to Mosi
    Guru 735695 points
    You can use prebuild ZNP hex image CC2531ZNP-Pro-Secure_LinkKeyJoin.hex under C:\Texas Instruments\Z-Stack Home 1.2.2.42930\Projects\zstack\ZAP\ZNP-HexFiles\CC2531. You don't have to build ZNP by yourself.
  • 0 in reply to YiKai Chen
    Intellectual 735 points
    Unfortunately I broke my CC Debugger so I wasn't able to program the dongle until today.
    Today I Programmed CC2531ZNP-Pro.hex file in that directory you mentioned (just for test) and for driver in windows I used C:\Program Files (x86)\Texas Instruments\SmartRF Tools\Drivers\vcp . Now it shows up "TI CC2531 USB CDC Serial Port" as a COMx port in device manager just as expected.
    But what am I supposed to do now? I mean can I run Hyperterminal or something to test and check things in windows?
    I mean is there like a AT command set to say form a network and all? (just to test firmware or ...)
    What about baud rate and serial port settings?


    Plus I connected the dongle to my linux board and it recognizes it as "TI CC2531 USB CDC" but I don't see any new device added to /dev/tty* devices. I figured it would add a device like /dev/ttyACM or something.
    Why is that? Did I programmed a wrong firmware?

    Thanks for your help.
  • 0 in reply to Mosi
    Guru 735695 points
    Baudrate of CC2531EMK is 115200.
  • 0 in reply to YiKai Chen
    Intellectual 735 points
    Thank you
    What about that linux problem?
    In dmesg it says "TI CC2531 USB CDC" but I don't know what device has been added to /dev directory. Actually I don't think a device has been added at all.
    You have any idea?
  • 0 in reply to Mosi
    Guru 735695 points

    In my BeagleBone, CC2531 USB dongle would be add as /dev/ttyACM0.

  • 0 in reply to YiKai Chen
    Intellectual 735 points

    @YiKai . Ok I finally managed to get the USB module to be recognized by the Linux as /dev/ttyACM0 by reconfiguring the kernel and adding some modules to it. Besides I was having problem with Z-Tool being able to connect to the module but I make it work somehow and it turns out CC2531 as CDC uses 38400 not 115200 that you mentioned. 

    Now after opening the port in my program what should I do to create a new network and let other nodes to join to this network or even using EZ-Mode to bound this module to other nodes in the area?

    Which document should I read to make this work?

    Does this module uses AT Commands? (cause AFAIK most of /dev/ttyACMx devices are supposed to support some sort of AT Commands)

    Could you provide me a sample program if you already know one? 

    Sorry it's just at this point I'm a little confused. 

  • 0 in reply to Mosi
    Guru 735695 points
    If you intend to write your own application, you should read Z-Stack ZNP Interface Specification.pdf in Z-Stack document folder.
  • 0 in reply to YiKai Chen
    Intellectual 735 points

    And what if I wanted to use something ready? 

    Is there some ready application that could interface to CC2531 USB Module ?

    (I assume there is only one for beaglebone and I'm using another platform)

  • 0 in reply to Mosi
    Guru 735695 points
    If you have BeagleBone, you can use Z-Stack Linux Home Gateway (www.ti.com/.../CC2531EM-IOT-HOME-GATEWAY-RD).
  • 0 in reply to YiKai Chen
    Intellectual 735 points
    No I'm using another more powerful platform. I guess I have to get the source code of Z-Stack Linux Home Gateway, right?
    It's just I couldn't get it yet. We don't have a local TI distributor here. Is there another way to get it?
    It's supposed to be open source.
    Thank you anyway.
  • 0 in reply to Mosi
    Guru 735695 points
    Yes, you have to sign SLA with TI to get Z-Stack Linux Home Gateway to rebuild it on your platform. The alternative is to use www.ti.com/.../TIDC-ZNP-HOST-SW3.
  • 0 in reply to YiKai Chen
    Intellectual 735 points
    But in TIDC-ZNP-HOST-SW3 in bin folder there are two hex files which by the name it looks like they are for CC2538 board and there are no hex files for CC2531.
    I programmed my CC2531 USB Module with CC2531ZNP-Pro.hex file in Z-Stack Home 1.2.2.42930 .
    Does TIDC-ZNP-HOST-SW3 project also work with CC2531 as well?
  • 0 in reply to Mosi
    Guru 735695 points
    Yes, it also works with CC2531. You can use prebuilt CC2531 ZNP image.