geeetech ioio otg : waiting for underlying connections

[Nikolai Fiikov]

new Geeetech IOIO OTG.

ubuntu 14.10+openjdk7

the board id recognized as /dev/ttyACM0 (set to usb auto, red led on, dev permissions ok)

trying java -Dioio.SerialPorts=/dev/IOIO0 -jar HelloIOIOSwing.jar

hangs with [V/IOIOImpl] Waiting for underlying connection.

eventually would hang to handshake but it looks to me more of some kind of timeout effect ...

same with trying all client sw bundles: 504, 400 and 330.

tried to flash the bootloader.

booted the board using 34+gnd, green led blinked few times.

java -jar ioiodude.jar --port=/dev/IOIO0 versions hangs forever.

after that trying to boot again into bootloader mode, green led not blinking.

just powering up renders red led always on.

any suggestions how to get helloioio working ok much appreciated ?

how do i verify usb communication is working fine?

[Ytai Ben-Tsvi]

First, there's a udev rule on the Downloads page, just in case you're not sure about permissions etc.
If you cat or screen the device file, are you getting anything?
Also, have you tried a configuration wipe (see the ioiodude wiki page)?
Last, why would you buy from geeetech when you have a lot cost option from SeeedStudio that's guaranteed to be properly tested?

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[Nikolai Fiikov]

ok, thinks started working after troubleshooting modem-manager.

this is what geeetech shipped me with:

niki@fiykovm:~/Android/ioio-dude$ ./ioiodude  --port=/dev/ttyACM0 versions

IOIO Application detected.

Hardware version: SPRK0020

Bootloader version: IOIO0401

Application version: IOIO0400

@ ytai : my communication problem was related to modem manager. it was obtaining and then closing the serial port in an attempt to manage it as modem. 

i've updated using-ioio-with-pc wiki page with instructions. hope you'd approve ;)

about geeetech vs. speedstudio, wasn't intentional in any way, simply picked first ebay option ...

[Ytai Ben-Tsvi]

Thanks for diagnosing this and thanks for making the wiki edit!

In the future, I recommend one of the official vendors (SparkFun or SeeedStudio), as I can guarantee that their production practices are excellent and that each individual board gets tested before being shipped. They are also the only ones paying royalty :)

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[Nikolai Fiikov]

roger that.