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Change accelerometer range settings of FXLC95000

Question asked by Vitaliy Siplichuk on Dec 3, 2015
Latest reply on Dec 6, 2015 by Vitaliy Siplichuk



I'm using FXLC95000 and several sensors with ISF1 (CodeWarrior) and customised example project AccelMag_Project. Everything works perfect. In my source I make setup of settings for accelerometer:


isf_status_t app_fxlc95000_int(void)


  isf_status_t status;

  gFxcl95000AccelProxy.regConfig.ctrl.reg = 0;

  gFxcl95000AccelProxy.regConfig.settings.nSettingsToUse = SM_GIVEN_SETTINGS;

  gFxcl95000AccelProxy.regConfig.settings.nFifoDepth = 1;

  gFxcl95000AccelProxy.regConfig.settings.nCurrentReportRate = 10000;

  gFxcl95000AccelProxy.regConfig.settings.nCurrentResolution = AFE_ACCEL_RESOLUTION_16_BIT;

  gFxcl95000AccelProxy.regConfig.settings.nRange = AFE_ACCEL_G_RANGE_8G;


  status = (isf_status_t)_lwsem_create(&gFxcl95000AccelProxy.lock, 1);

  return status;



And it works! But now I have issue to change some settings from my MCU host during my device is working. For example I want to set nRange = AFE_ACCEL_G_RANGE_2G.

I send command to FXLC95000:


0x02 (APP_ID_FXLC95000_ACCEL)  0x02 (CI_CMD_WRITE_CONFIG)  0x08 (FXLC95000_ACCEL_APP_RANGE)  0x01 (count of bytes)  0x40 (AFE_ACCEL_G_RANGE_2G)

Than I get answer

0x02 0x80
As I understand It meens that everything is OK!
Then I try to read settings with command:


0x02 (APP_ID_FXLC95000_ACCEL)  0x01 (CI_CMD_READ_CONFIG)  0x00 (offset)  0x0A (count of bytes)

and I get answer:

0x02 0x80 0x0A 0x0A 0x03 0x02 0x01 0x00 0x00 0x27 0x10 0x00 0x40 0x00

As I understand there are my new settings inside FXLC95000.
But then I read data from accelerometer I still get data with range AFE_ACCEL_G_RANGE_8G!!!!! So new settings of nRange doesn't have effect!!!

My question is:
How to change any settings during sensor is working and get effect immediately? Maybe I should send some special command to work with new settings?