nRF51822-QFAB(S110, SDK9.0) hid-mouse not execute.

RE: nRF51822-QFAB(S110, SDK9.0) hid-mouse not execute.

Sigurd — Thu, 03 Aug 2017 11:31:41 GMT

Yes, feel free to ask new questions if you have any. If the question is related to this topic, you can ask the question here as a comment. If you have a new question on a different topic, I recommend creating a new question here on DevZone :)

RE: nRF51822-QFAB(S110, SDK9.0) hid-mouse not execute.

jwcheon — Thu, 03 Aug 2017 01:59:01 GMT

Thank you for your help. I do not understand what you actually gave me, but I will refer to the reference site and study it.

If I have something I do not know, can I ask you another question?

Thank you anyway. I hope you have a good day.

RE: nRF51822-QFAB(S110, SDK9.0) hid-mouse not execute.

Sigurd — Wed, 02 Aug 2017 10:42:41 GMT

When you enable the SoftDevice, you need to select what LFCLK oscillator source you should use. Here you have the option use the internal RC oscillator OR use an external 32 KHz crystal as the source for the LFCLK. (See chapter 13, page 51 in the Reference Manual).

When using the RC oscillator, you also have the option to select how it should be calibrated. In total you these options defined in the NRF_CLOCK_LFCLKSRCS enum.

In order to achieve a 250 ppm clock accuracy for BLE (which is required by the BLE spec), the clock need to be calibrated. See this post for more information.

RE: nRF51822-QFAB(S110, SDK9.0) hid-mouse not execute.

jwcheon — Wed, 02 Aug 2017 10:29:06 GMT

Thank you very much. I fixed the source as you told me, and confirmed that it appeared in the bluetooth list.

I wonder why you changed the NRF_CLOCK_LFCLKSRC_XTAL_20_PPM value to the NRF_CLOCK_LFCLKSRC_RC_250_PPM_1000MS_CALIBRATION value.

I would appreciate your attention.

RE: nRF51822-QFAB(S110, SDK9.0) hid-mouse not execute.

Sigurd — Wed, 02 Aug 2017 09:36:24 GMT

Hi,

Your IROM/IRAM settings looks correct. Did you remember to flash the S110 SoftDevice ?

Do you have a external 32 KHz crystal on your board? If not, you will have to use the internal RC instead. in main.c function ble_stack_init() use NRF_CLOCK_LFCLKSRC_RC_250_PPM_1000MS_CALIBRATION instead of the NRF_CLOCK_LFCLKSRC_XTAL_20_PPM. :

// Initialize the SoftDevice handler module.
SOFTDEVICE_HANDLER_APPSH_INIT(NRF_CLOCK_LFCLKSRC_RC_250_PPM_1000MS_CALIBRATION, true);