ble central and peripheral + hid ble problem

RE: ble central and peripheral + hid ble problem

Vidar Berg — Wed, 26 Feb 2020 09:35:37 GMT

Hello,

The connection handle used by the HID peripheral connection is never assigned to the m_conn_handle variable you're passing to ble_hids_inp_rep_send(). That is why you are getting the invalid state error.

RE: ble central and peripheral + hid ble problem

JuanCV — Mon, 24 Feb 2020 19:45:06 GMT

Hello Vidar,

This is my project. there is no neccesary to make the ticket private, I'm using the nRF52 DK. I will be attentive to any news, thanks for your help. Regards.

devzone.nordicsemi.com/.../7167.ble_5F00_app_5F00_relay_5F00_hid.7z

RE: ble central and peripheral + hid ble problem

Vidar Berg — Mon, 27 Jan 2020 16:14:14 GMT

Hello,

Are you able to upload your project so I can try to debug it here (assuming it will run on a nordic DK)? I can make this support ticket private if necessary.

RE: ble central and peripheral + hid ble problem

JuanCV — Thu, 23 Jan 2020 17:44:44 GMT

Hello Vidar,

When this happen, i having two actives connection:

Between one nrf52832 slave, that it is running heart rate and battery service; and the main nrf52832 (in central role). The notifications slave – main device are working fine.
Between the main device (peripheral role), that it is running heart rate, battery, device information and HID service (joystick); and one Notebook, Smartphone or Tablet (central). The notifications main device – central device of heart rate and battery service are working fine. Also, i can read the device information characteristic... i only have the error with the HID service.

RE: ble central and peripheral + hid ble problem

Vidar Berg — Thu, 23 Jan 2020 12:21:03 GMT

Hello,

Thanks for confirming. So it's not caused by an ongoing MTU exchange then. Is it possible that you may be passing a connection handle for the other link, or do you only have one active connection when this happens?

RE: ble central and peripheral + hid ble problem

JuanCV — Tue, 21 Jan 2020 16:25:56 GMT

Hello Vidar,

I try to call the send function between 100ms, 500ms, 1s, 5s and 10s after the connection was established, but im getting the same error…

RE: ble central and peripheral + hid ble problem

Vidar Berg — Tue, 21 Jan 2020 12:41:16 GMT

Hello,

It may return invalid state for one of the following reasons:

Invalid Connection State
Notifications and/or indications not enabled in the CCCD
An ATT_MTU exchange is ongoing

I could be the latter. MTU exchange is usually initiated as soon as the connection is established. Have you tried to repeat this send function a while after the connection is established to see if you get the same error?

RE: ble central and peripheral + hid ble problem

JuanCV — Thu, 16 Jan 2020 20:17:06 GMT

Hello Vidar,

TodaThe ble_hids_inp_rep_send is returning ERROR 8 [NRF_ERROR_INVALID_STATE], maybe i configuring something wrong. In debug mode, i can see the notification are enable before calling ble_hids_inp_rep_send (SS attached)… if notificaction are truly enabled, what else may cause this error?

Also:

Im using the battery service in this project, and his notification are working fine.
In other project im implement the same HID profile and i don’t have any problema with ble_hids_inp_rep_send and the nrf52832 work as joystick.
Maybe the “Relay example” aren´t compatible with BLE HID in peripheral mode?

Your help will be greatly appreciable.

Thanks in advance for your support.

Regards,

***I apologize for my delayed reply, i was busy with pcb design in this last week.

RE: ble central and peripheral + hid ble problem

Vidar Berg — Tue, 07 Jan 2020 13:51:32 GMT

Hello,

The client needs to enable notifications first, so that may a possible explanation as to why the data is not being sent. Have you checked what the returned error code from ble_hids_inp_rep_send()->sd_ble_gatts_hvx() is?

Regards,

Vidar