You seem to be doing everything right. Are the two machines running a different OS, just in case there's something word going on with that particular one? Otherwise, I suggest you contact the seller. The main manufacturers have some process in place that ensures a certain level of manufacturing quality and every single unit being thoroughly tested before shipping. In your case it is hard to tell whether you have a defective board or there is another sort of systematic problem. On May 1, 2015 11:41, "lennart rolland" <[email protected]> wrote:
> Hi! > > I just got my IOIO OTG (geeetech) and I was really psyked to get started > with this. > > Unfortunately I am having some issues that I was hoping someone more > experience could shed some light on. What I did first: > > 1. Ensured USB mode switch is set to A for automatic (I first rubbed > the switch back and forth to ensure clean connectors and the made sure it > was all the way in the A direction) > 2. Download and install 50-ioio.rules udev rules (I am on Ubuntu 14.04 > x64). > 3. Rebooted to make sure udev rules were in effect. > 4. Type this command in a terminal to have real-time information about > when the IOIO device exists (updated every 100 ms): *watch -n.1 ls > -halt /dev/IOIO** > 5. Connect the IOIO-OTG to an USB port on the laptop > > What happens is the device shows up almost immediately. Good! > > Next I try to use ioiodude > > 1. Download and unzip latest (v1.02) ioiodude from here > https://github.com/ytai/ioio/raw/master/release/apps/IOIODude-0102.zip > 2. Open new terminal and go to ioiodude directory > 3. Run command: *./ioiodude --port=/dev/IOIO0 versions* > > At this point I was *expecting* to see something like this: > > IOIO Application detected. > > Hardware version: SPRK0020 > Bootloader version: IOIO0400 > Application version: IOIO0330 > > But instead it just *hangs indefinitely* and nothing is output. > > I let it wait for 10 minutes just to be sure. Nothing. I verify that the > /dev/IOIO0 softlink is still present and the /dev/ttyACM0 device is also > still present. > > So next thing to try was bootloader mode. I did the following: > > 1. Disconnect USB cable and verify that the /dev/IOIO0 and > /dev/ttyACM0 disappear > 2. Put a jump wire from boot to gnd > 3. Re-connect USB cable and verify that the green led is on and > /dev/IOIO0 and /dev/ttyACM0 are still missing > 4. Remove jump wire from boot to gnd > 5. Verify that green led blinks a few times (5?) then goes off. > > Now in the documentation it states that the device should enumerate. It > does but only for fractions of a second before disappearing again for many > seconds and then flickering like this continuously (watch -n.1 made it > possible to catch a glimpse of this). > > It was suggested in docs that if USB was flaky this could be due to bad > timing and it would be possible to recalibrate the oscillator, so I tried > that: > > 1. Disconnect USB cable and verify that the /dev/IOIO0 and > /dev/ttyACM0 disappear > 2. Put a jump wire from boot to gnd > 3. Put a jump wire from pin1 to gnd > 4. Re-connect USB cable and verify that the green led is on and > /dev/IOIO0 and /dev/ttyACM0 are still missing > 5. Remove jump wire from boot to gnd > 6. I tried both leaving the pin1 to gnd and removing it at this point. > It did not matter which way I tried. > > What happens now deviates somewhat from docs. Docs claim calibration would > be indicated by a really quick blinking of the led, but the led is of for a > few sec then it blinks the normal few (5?) times and then goes off again. > After this it behaves just like the boot-loader mode described above with > the flickering devices. > > I decided to try with the app instead and installed the latest > IOIOManager.apk on my fully charged HTC One M7 running Lollipop something > (Android 5). I use this device for regular android development so all dev > stuff was enabled already. > > After selecting a file in the programmer it shows "Waiting for IOIO > connection..." in yellow and does not allow me to continue. > > I have repeated this with minute variations for a long time now. I have > tried 6 (!!) USB cables, the shortest of which is 8 cm. I have tried all 7 > USB ports on my main laptop (Lenovo W700) and all 3 on my secondary laptop > (Clevo top spec). Reboots were made and hair was pulled out. So what is the > first thing I should do next when troubleshooting this? > > Thanks! > > > -- > You received this message because you are subscribed to the Google Groups > "ioio-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/ioio-users. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "ioio-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/ioio-users. For more options, visit https://groups.google.com/d/optout.
