Can't discover custom service

RE: Can't discover custom service

Ina — Wed, 30 Sep 2015 10:37:45 GMT

Thank You very much! Now I know that my services are implemented correctly, i was afraid they are not.

Regards, Ina

RE: Can't discover custom service

Petter Myhre — Tue, 29 Sep 2015 10:52:38 GMT

I don't think there is anything wrong with your service setup, but I see the same behaviour as you testing your code.

This is because nrf_drv_twi_tx() returns an error and APP_ERROR_CHECK() resets the chip.

If I comment out the below section it works perfectly.

//err_code = nrf_drv_twi_tx(&twi, ACCADDRESS, &tx_data, sizeof(tx_data), true);
//APP_ERROR_CHECK(err_code);

//err_code = nrf_drv_twi_rx(&twi, ACCADDRESS, rx_data, sizeof(rx_data), false);
//APP_ERROR_CHECK(err_code);

I guess you have your twi connected to something, while I don't. Anyways, you could use the debugger and see if the functions above return any errors. Remember to turn off optimizations. Maybe you could handle the error instead of calling APP_ERROR_CHECK(), depends on what the error is of course.

RE: Can't discover custom service

Ina — Mon, 28 Sep 2015 11:21:45 GMT

Hi! Sorry for delay. I uploaded my project and gave information about Soft Device and SDK.

RE: Can't discover custom service

Petter Myhre — Fri, 25 Sep 2015 15:26:17 GMT

Could you let us know what SDK and SoftDevice version you are using and upload your complete project so we could have a look at it? Please edit your question to include the information.

RE: Can't discover custom service

Nguyen Hoan Hoang — Fri, 25 Sep 2015 11:36:50 GMT

There are a few example code with custom service and long write from this blog site. The blog also shows how to setup a free development environment using Eclipse + GCC for general ARM based embedded development.