IOIO-OTG port is unstable

[Zaid Daba'een]

Hey,

I am trying to upgrade the firmware. I am using Ubuntu 13.10 x32. I have added the udev rule, and restarted the service, and also restarted my laptop. I turned IOIO off, and connected the boot to GND, connected the usb, and removed the boot connection. The yellow LED did blink about 4 times.

In the terminal I entered lsusb, the output has :
Bus 002 Device 040: ID 1b4f:0008 
About 1/10 times that I enter lsusb. Notice that the device is not named (not identified).

Also if I enter ls /dev/IOIO*, I get:
/dev/IOIO0
Also 1 out of 10 times.

To be clear: My VREG is fried, but I usually operate through 5V pin, and it works perfectly (UART and 3.3V out) on the older firmware. The USB cable is lighting the LED up also.

Is that connected somehow?

The udev rule is:
ACTION=="add", SUBSYSTEM=="tty", SUBSYSTEMS=="usb", ATTRS{idVendor}=="1b4f", ATTRS{idProduct}=="0008", SYMLINK+="IOIO%n", MODE="666"

[Ytai Ben-Tsvi]

There have been several reports of Linux related problems with the IOIO in bootloader mode. You're using an unstable release, which makes it even more of a suspect. Unless you want to spend time digging deep into the system internals to figure out what's broken, I'd simply use a different OS for the upgrade process.

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[Zaid Daba'een]

Ytai,

I have also tried it on Windows 8 32 bit. Before driver installation, in Device Manager, when the IOIO-OTG was connected in boot loader mode, it appeared as IOIO in Other Devices, with a warning sign on it. It said there is no driver installed.

I forced non digitally signed driver installation, and installed the driver through Add Hardware. Another device under COM and LPT appeared named IOIO-OTG and it took COM4 port, still there was a warning sign on it. Ioiodude cannot retrieve the versions over COM4.

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[Ytai Ben-Tsvi]

I've never used Windows 8, so I can't verify that the IOIO works there out of the box. In the previous versions of Windows, there was no custom driver installation required - the serial port driver is a standard Windows driver.

What does the warning icon in the device manager mean? Also, can you please quote the actual command line you're using with IOIODude and the output that it's giving you?