NRF 51822 & MPU 9250-

RE: NRF 51822 & MPU 9250-

priya — Thu, 17 Aug 2017 20:38:22 GMT

Hi meria,

I am working on a similar application. Could you help me with the starting point? Or do you have any source code for this.

Thanks in advance.

RE: NRF 51822 & MPU 9250-

Øyvind Karlsen — Wed, 27 Jan 2016 14:21:55 GMT

Hi,

TX_RX will be turned off if you but the MCU to sleep. Please see this answer for GPIO wakeup documentation.

RE: NRF 51822 & MPU 9250-

meria — Mon, 25 Jan 2016 19:07:30 GMT

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yes We did that.how can i check tx_rx being turnd off?

RE: NRF 51822 & MPU 9250-

meria — Mon, 25 Jan 2016 19:00:18 GMT

the advertisement timeout is 120 seconds.so it wont advertise afterthat.after 2 hours of data transfer suddenly we are unable to find the device so we are reprogramming it again to initiate connect and transfer data. our question is the program is in non volatile memory we still couldn't understand why it is not transmitting again even after we RESET. I could not find any failing while i debugged.

RE: NRF 51822 & MPU 9250-

awneil — Mon, 25 Jan 2016 10:17:38 GMT

Please explain "forced to reprogram" ?

Why do you feel "forced"?

What other options have you tried - eg, reset? power-cycle?

What debugging have you done to determine where, exactly, it is failing?

RE: NRF 51822 & MPU 9250-

Øyvind Karlsen — Mon, 25 Jan 2016 10:08:07 GMT

Hi,

Here we need some more information to be able to assist you.
The MPU9250 has a INT pin that serves as a wake-up-pin for MCUs. Connect this to a pin on nRF51822 and set it to sleep until it recieves a signal from the INT pin.

Best regards,

Øyvind