tinyG won't connect on MacOSX

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  • July 8, 2018 at 3:59 pm #11045
    ajbonu02
    Member

    Hello,
    I am trying to connect a tinyG to my MAC OS X (El Capitan – 10.11.6) for the first time. I’ve gone through all of the steps (FTDI 2.3 driver installed, restarted, searched for serial ports in CoolTerm), but I cannot get the serial port to show up to connect the tinyG. The blue light is on, and everything appears functional.

    I’ve had success in the past connecting with a different tinyG board on this computer, but this one will not show up at all. Any thoughts?

    Note: This board was previously used by another person, and have may have been hooked up on a Linux system for testing, if that is of any help. Thanks!!!

    July 8, 2018 at 4:36 pm #11046
    ajbonu02
    Member

    Forgot to add: board is v8

    July 9, 2018 at 9:34 am #11047
    cmcgrath5035
    Moderator

    Hmm, no OSX experience here, but in Linux land I would suggest opening a command console and running DMESG right after removing, then reinserting the USB into the MAC. There you would see OS messaging as the hardware was initialized.
    I assume MAC has something similar.
    From what you have reported so far, it does sound like a driver or perhaps a USB cable issue. Fact is, as long as the Blue led is lit on V8, the FTDI UASB to Serial device is powered and the connection should appear on the MAC side, whether or not tinyG firmware is actually booted.
    Does tinyG boot up? That would be flashing SPN/DIR for a few seconds, then a quick flash from the tx/rx leds.

    July 9, 2018 at 10:11 pm #11048
    ajbonu02
    Member

    Thank you. I will trying doing the DMESG equivalent on the mac.

    On start-up, the SpDir led blinks about 12 times, and then the PWM light turns on and stays red. The tx/rx leds do not turn on at all. Does that mean it is not booting up properly?

    July 9, 2018 at 11:14 pm #11049
    ajbonu02
    Member

    OK, used the dmesg as indicated, and am not seeing anything. I went through and removed the ftid driver (v 2.3), and reinstalled, with no luck. I also checked the dev directory (per FTDI’s installation instructions), and did not see the the serial port.

    I also switched out the usb cable, and tried a two different usb ports on my mac.

    Anything else I can try?

    July 11, 2018 at 3:12 pm #11050
    cmcgrath5035
    Moderator

    Your boot up sounds normal(more or less).
    The 12 second delay is the boot loader waiting to see if you want to initiate a fw download, it’s just a fixed delay.
    After delay, tinyGFW starts up. The default setting have the Spn/Dir set at 0.10 duty cycle, so that is a dim red you see.
    TinyG, on completion of boot, sends a tinyG>mm prompt up stream, which is usually seen as a very brief TX blink.
    There is a chance that your FTDI device has died, not a typical item.

    Do you have a another computer, Win or Mac(or Linux) you could plug into to verify board as bad?

    It would be very unusual for the 3.3V on board regulator, which powers the devices and the blue LED, to fail. DO you have a VoltMeter you could check 3.3V?

    • This reply was modified 6 years, 4 months ago by cmcgrath5035.
    July 15, 2018 at 11:50 am #11052
    ajbonu02
    Member

    Thank you for the response. I will give those a try and get back to you with the results. Thanks

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