Question regarding iNEMO output modes

[dgh]

Posted on May 27, 2011 at 19:54

I have questions regarding the configuration output data for the iNEMO board v2. Based on the iNEMO2_SDK.h header file, I know that the following output modes can be defined:

- Default output mode - Raw output mode - AHRS output mode However, I have not been able to find the definition of these output modes in the iNEMO User Manual. I would appreciate it if someone could point me to the documentation where these output modes are defined. Thank you, David

[Fabio]

Posted on July 12, 2011 at 15:40

Hi David,

In the UM1017 (available at

http://www.st.com/inemo

) on the page 31, you can find details about output mode. In particular, if we look into .h code, is possible to find all out mode available: 

#define INEMO2_OUTPUT_MODE_DEFAULT   0x00

#define INEMO2_OUTPUT_MODE_RAW          0x01

#define INEMO2_OUTPUT_MODE_AHRS         0x04

It is a mask bit field, the different options are:

0x00              -Default (no AHRS and sensor calibrated data)

0x01              - no AHRS and RAW data

0x04              - AHRS enabled and calibrated data

0x05              - AHRS enabled and calibrated data

Best Regards

iNEMOâ„¢ Team

[harinath]

Posted on July 13, 2011 at 08:31

Hi Fabio,

1. In iNEMO Suit GUI  if the AHRS Mode enabled ,Accelerometer parameter settings ( High-Pass Filter,ODR, reference), they are grayed out. Why is this ?

2. My investigation reveals iNEMO V2 board can't give ''linear acceleration(without gravity or tilt)'', when the AHRS enabled. Is this true ?

3. Now, I desperately need linear acceleration along with AHRS. If above 2 points are true. I really need help of ST to upgrade the firmware to provide linear acceleration, acceleration( linear acceleration+ gravity), along with AHRS.

4. If i want to change accelerometer High-Pass Filter settings, and also want AHRS output, what should i do ?

I completely depended on iNEMO V2, spent my fund for my research, I can't proceed further if i don't get linear acceleration. Please help ST !!! 

Thanks.

[Fabio]

Posted on July 13, 2011 at 15:08

Hi Harinath,

Please, take care in order to avoid double post for same item, please look about your questions at: [DEAD LINK /public/STe2ecommunities/mcu/Lists/STM32F%20MEMS%20%20iNEMO/Flat.aspx?RootFolder=/public/STe2ecommunities/mcu/Lists/STM32F MEMS iNEMO/Accelerometer(LIS303DLH) Filters ( Register settings)&FolderCTID=0x01200200770978C69A1141439FE559EB459D7580003E26E7DD54228C428E8F9FB5EE9C5185&TopicsView=https://my.st.com/public/STe2ecommunities/mcu/Lists/STM32F%2520MEMS%2520%2520iNEMO/AllItems.aspx&currentviews=12]Microcontrollers > iNEMO MEMS/STM32 Board > Accelerometer(LIS303DLH) Filters ( Register settings) Best, Fabio