MKI062V1 FW version & BufferUsage function

[harinath]

Posted on May 18, 2011 at 07:48

I'm trying to acces the FW Version & BufferUsage information of iNEMO .

Please have a look at attached .cpp file (works for streaming data from iNEMO) .

The BufferUsage function is very important for me since, I'm going to use iNEMO in Visual studio VC+ MFC environment. 

( It would have been good if DLL generates a message & gives a single frame of data to application )

I also would like to know, when program running if I Reset ( SW1) the iNEMO, I can see no data coming. How to know that the device has been Reset ?

Thanks

#inemo #visual-studio #inemo-sdk-visual-studio #sdk

[Fabio]

Posted on May 23, 2011 at 11:32

Hi Hanirath,

The SDK has been conceived to work with the board only from software side, without interacting with the hardware.

This means that the SDK is not able to detect a HW Reset on the board, and if occurs after you need  to disconnect and reconnect the board via software.

(Only V2 allow

SW reset functionality with command:  INEMO2_CMD_RESET_BOARD)

Here below, some suggestions for .ccp file:

Regarding the Get version it is better something like:

                char sVersion[256];

                int iSize = 256;

                memset(sVersion, 0, 256);

                INEMO_SDK_GetVersion = (DLLPROC_GFWV)GetProcAddress(hinstDLL,'' INEMO_SDK_GetVersion'');

                if (INEMO_SDK_GetVersion != NULL)

                                iNEMO_Return = INEMO_SDK_GetVersion(sVersion,    &iSize);

                if(iNEMO_Return==0)

                                printf(''\n  iNEMO Firmware: %s '',sVersion);

Regarding the get Sample function, please check the return value of INEMO_SDK_GetSampleFunction before use the values in the frame structure:

                                iNEMO_Return = INEMO_SDK_GetSampleFunction(&frame);

                                if (iNEMO_Return == INEMO_ERROR_NONE)

                                {

                                                printf(''\n  T:%5d'',frame.TimeStamp);

                                                printf(''  Ac:%5d %5d %5d  '',frame.Accelometer.X,frame.Accelometer.Y,frame.Accelometer.Z);

                                                printf(''  Gy:%5d %5d %5d '',frame.Gyroscope.X,frame.Gyroscope.Y1,frame.Gyroscope.Y2,frame.Gyroscope.Z);

                                                printf(''  Mg:%5d %5d %5d'',frame.Magnetic.X,frame.Magnetic.Y,frame.Magnetic.Z);

}

Best Regards

iNEMOâ„¢ Team

[harinath]

Posted on May 24, 2011 at 04:22

Hi Fabio,

Regarding the get FW version info , I tried what you said ,though it is not  very important for me, but it returns iNEMO_Return :1. 

I would like to know one thing regarding get sample function.

when it succeeds (iNEMO_Return =0) , do we have complete frame data ? or incomplete(partially complete) frame ?

Because the INEMO_SDK_GetBufferUsage function gives only percentage of filled FIFO, we cannot depend on this to check if there is enough data(one complete frame) to read the FIFO buffer.

Thanks

Harinath

[Fabio]

Posted on May 26, 2011 at 10:15

Hi Harinath,

Below some suggestions:

1)

Check the .h for error code meaning.

2)

Yes, only when the function return INEMO_ERROR_NONE the data is valid (else skip it)

3)

The GetBufferUsage function is only a test function. If the value grows it means that your application is not enough fast to read all data from the device.

Bye

iNEMOâ„¢  Team