STM CircleOS forum / Is it possible to switch off the MEMS sensor programmatically?

johnja9 · 2011-10-11 11:57:24

I am writing a small CircleOS project, on the STM32F103 EvoPrimer that mixes USB-HID with an I2C sensor. I see from previous forum posts that I2C clashes with the MEMS sensor, and can successfully built a I2C-only test project. Now I am trying to add USB-HID into the project, and see that the USB pull-up signal, GPIO PD3, also clashes with the MEMS on the STM32 FSMC.

I can switch the MEMS off via the CircleOS GUI, before application start-up, but is there a way to switch MEMS off programmatically, as switching it off via the FSMC also impacts the LCD display.

Regards

John

Last edited by johnja9 (2011-10-11 12:16:11)

yrt · 2011-10-12 07:11:25

The MEMS handler is called by the TIM2 interrupt.
So, in order to switch off the MEMS management, you can disable the TIM2 interrupt, with this command :
TIM_DeInit( TIM2 );

and recall after operation with :
TIM_Cmd( TIM2, ENABLE );
TIM_ITConfig( TIM2, TIM_IT_Update, ENABLE );

# 1 2011-10-11 11:57:24 Is it possible to switch off the MEMS sensor programmatically?

Is it possible to switch off the MEMS sensor programmatically?

# 2 2011-10-12 07:11:25 Is it possible to switch off the MEMS sensor programmatically?

Re: Is it possible to switch off the MEMS sensor programmatically?

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