[MinnowBoard] I2C with MPU6050

[Nanik T]

Thanks John for the reply.

Here is the screenshot of the BIOS ( http://postimg.org/image/p2quw3weh/ )
for the LPSS 2 Configuration. I checked it and can see that the LPSS I2C
are enabled. I'm using Ubuntu 14.04 (ubuntu-14.04.1-desktop-amd64.iso)
64bit version

Let me know what to check next ?

Appreciate your help.

Cheers


On Thu, Oct 16, 2014 at 12:51 AM, John Hawley <john.hawley at intel.com> wrote:

> On 10/15/2014 4:32 AM, Nanik T wrote:
> > Hi,
> >
> > I've got a MPU6050 (like this one
> >
> http://www.ebay.com/itm/MPU-6050-Module-3-Axis-Gyroscope-Acce-lerometer-for-Arduino-Power-supply-3v-5v-/351196348540
> )
> > and I'm able to read it using Raspberry Pi using this instruction
> >
> http://blog.bitify.co.uk/2013/11/interfacing-raspberry-pi-and-mpu-6050.html
> >
> > I'm trying to do the same by interfacing it with Minnowboard Max by
> > connecting it using the JP1 header pins as follows:
> >
> > MPU6050 (VCC) --> Pin 4
> > MPU6050 (GND) --> Pin 1
> > MPU6050 (SDA) --> Pin 15
> > MPU6050 (SCL) --> Pin 13
> >
> > I'm using the schematics
> > (http://www.elinux.org/images/f/fd/MinnowMax_RevA1_sch.pdf) on page 20.
> >
> > I'm using i2cdetect to detect the MPU6050 but it does not show anywhere
> > I tried 'i2cdetec -y 1/2/4/5/6' with no luck.
> >
> > I've loaded the 'i2c-dev' driver too before running i2cdetect.
> >
> > Any idea what seem to be the problem ?
>
> Should be on i2c bus #7 if you are using Linux (the low speed header
> enumerates under Linux to #7, high speed header #8).  You should double
> check and make sure that firmware has i2c enabled
>
> http://www.elinux.org/Minnowboard:MaxBios#LPSS_.26_SCC_Configuration
>
> specifically:
>
> LPSS 2 Configuration
> LPSS DMA #2 Support
> Enable / Disable
> LPSS I2C #5 Support
> Enable / Disable
> Note: This is what's used on the Low-speed pins #13, #15
> LPSS I2C #6 Support
> Enable / Disable
> Note: This is what's used for the High Speed I2C pins
>
> If you aren't seeing 7 you might be missing the driver for lpss, so you
> might want to check your kernel / kernel config (could be helpful to let
> us know so we can help you double check)
>
> - John
> _______________________________________________
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>
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