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error: no propeller chip on port 'COM12' — Parallax Forums

error: no propeller chip on port 'COM12'

FrannyFranny Posts: 127
edited 2014-09-01 21:35 in Propeller 1
I was using a proto board through a USB to232 and the discrete circuit and it worked fine with FirstIDE and the Prop tool until I got a Propeller project board USB which worked for a little bit until it started giving me the "error: no propeller chip on port 'COM12'" I reinstalled the latest USB drivers but that didn't help and also reinstalled simple IDE but still can't find it... Help! :]

Comments

  • jazzedjazzed Posts: 11,803
    edited 2013-10-07 12:24
    Are there any new COM ports on the system? What do you see if you click on the right-hand side port selector?
  • FrannyFranny Posts: 127
    edited 2013-10-07 14:54
    It used to be com 3 and com 4, Com 3 worked all the time and now I got 10 and 12 but neither works, I removed all the other USB hardware too
  • Duane DegnDuane Degn Posts: 10,588
    edited 2013-10-07 15:41
    In general each new Propeller board with a FTDI chip will cause a new COM port to be created (I think these are virtual com ports). I know when I connected a new board the Com number is up in the thirties.

    Some boards can be finicky about connection to the Prop Tool. I find, when I'm having trouble, if I press the reset button on the board half a second before pressing F10 or F11, the program is more likely to load.

    You also want to make sure there isn't a serial terminal using the com port.
  • FrannyFranny Posts: 127
    edited 2013-10-08 08:45
    I tried that but it doesn't work either...
  • Beau SchwabeBeau Schwabe Posts: 6,566
    edited 2013-10-08 09:28
    You can try uninstalling it in your device manager.

    Start-> Control Panel-> System-> Hardware -> Device Manager

    Look under Ports (COM & LPT) to see if there might be a conflict.

    Also try looking at the ports with and without the USB device plugged in to see if something else is using that port.

    If you right click the USB Serial Port (COMx) ... and click on Properties under "Port Settings->Advanced" you can try to manually re-assign the COM Port Number

    ... or from Properties under Driver you can try to Uninstall the driver.... it should re-install if you unplug, and then re-plug the USB connection.


    Note: In the "Advanced settings" to manually change the COM port, it may erroneously be reporting that the COM port is "in use". if you have ever plugged in a USB-COM device, this flag gets marked, and remains even after the device is no longer plugged in. Re-assigning the COM port to one of these ports is generally ok if you are certain that it's not being used.
  • FrannyFranny Posts: 127
    edited 2013-10-09 22:00
    When I plug the board it finds it and installs the USB drivers, I installed it on a new computer and found the USB device, And even saw the com port appear and disappear as I plugged and unplugged the board but still the same problem 'no propeller chip found' I think I might have fried the 2 prop boards maybe...
  • FrannyFranny Posts: 127
    edited 2013-10-16 22:50
    Is there any way to find out if the prop chip is bad?
  • kwinnkwinn Posts: 8,697
    edited 2013-10-17 18:22
    Franny wrote: »
    Is there any way to find out if the prop chip is bad?

    No simple way to do so, although you could use a scope to verify the crystal is oscillating, if there is data in/out on pins 30/31 after powering up, and see if any other pins are active.
  • lightbringerlightbringer Posts: 10
    edited 2014-09-01 17:30
    I was having and I am still having the same problem - error no propeller chip on port. However today out of no where it just came through and said hello. I went wow and yeah then message came up checking ram and the terminal filled up with some code which seem to beg me to respond with ok. I select ok. Poof I get the error no propeller chip on port again. I'm back to where I started.
  • prof_brainoprof_braino Posts: 4,313
    edited 2014-09-01 19:01
    What else have you got plugged into your system?

    First thing to try is unplug all your USB printers, external hard drives, etc. You should be fine with your just your keyboard and mouse. I saw an HP printer prevent anybody else from talking on the USB, which confused the prop.

    Then figure out if you have too many comports. It the last message siad the comport was higher than about 4, you should probably remove all the virtual com ports and start again. google "reset comports". The other devices with sort themselves out next time they are plugged in.

    Next, what prop board are you using, and what are you powering it with? One older version board needed "the 100k resistor trick", these have become rare.

    Lastly, the one Most like to solve the problem. Often its just a crappy power supply isn't delivering enough oomph to make the prop go.

    Try these and let us know.
  • Peter JakackiPeter Jakacki Posts: 10,193
    edited 2014-09-01 19:18
    lightbringer wrote: »
    I was having and I am still having the same problem - error no propeller chip on port. However today out of no where it just came through and said hello. I went wow and yeah then message came up checking ram and the terminal filled up with some code which seem to beg me to respond with ok. I select ok. Poof I get the error no propeller chip on port again. I'm back to where I started.

    What are you doing lightbringer, yabbering all over the forum using old threads? I answered you on another old thread and here you are again. Mind your manners when you come to the table and we will see you get fed.
  • NWCCTVNWCCTV Posts: 3,629
    edited 2014-09-01 20:23
    Mind your manners when you come to the table and we will see you get fed.
    Agreed. Same question is asked in a SimpleIDE Thread. It really gets confusing.
  • Duane DegnDuane Degn Posts: 10,588
    edited 2014-09-01 20:26
    Peter Jakacki wrote: »
    What are you doing lightbringer, yabbering all over the forum using old threads?

    There are five of these identical posts (lightbringer's not Peter's). Ouch.
  • lightbringerlightbringer Posts: 10
    edited 2014-09-01 21:35
    on a max pro the terminal pops up when i plug in the usb the upper right corner shows /dev/cuusbserial - DAXJKXHU
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