hid error 15 NRF_ERROR_FORBIDDE

[Taylor]

Hi,

I'm using SDK17.02 HID example on nRF52810.

I create a timer to use mouse_movement_send about 10ms interval.

When my custom board was connected,  RTT viewer logging ERROR 15

Should I handle the process like this?

void mouse_movement_send(int16_t x_delta, int16_t y_delta)
{
    ret_code_t err_code;

    if (m_in_boot_mode)
    {
        x_delta = MIN(x_delta, 0x00ff);
        y_delta = MIN(y_delta, 0x00ff);

        err_code = ble_hids_boot_mouse_inp_rep_send(&m_hids,
                                                    0x00,
                                                    (int8_t)x_delta,
                                                    (int8_t)y_delta,
                                                    0,
                                                    NULL,
                                                    m_conn_handle);
    }
    else
    {
        uint8_t buffer[INPUT_REP_MOVEMENT_LEN];

        APP_ERROR_CHECK_BOOL(INPUT_REP_MOVEMENT_LEN == 3);

        x_delta = MIN(x_delta, 0x0fff);
        y_delta = MIN(y_delta, 0x0fff);

        buffer[0] = x_delta & 0x00ff;
        buffer[1] = ((y_delta & 0x000f) << 4) | ((x_delta & 0x0f00) >> 8);
        buffer[2] = (y_delta & 0x0ff0) >> 4;

        err_code = ble_hids_inp_rep_send(&m_hids,
                                         INPUT_REP_MOVEMENT_INDEX,
                                         INPUT_REP_MOVEMENT_LEN,
                                         buffer,
                                         m_conn_handle);
    }

    if ((err_code != NRF_SUCCESS) &&
        (err_code != NRF_ERROR_INVALID_STATE) &&
        (err_code != NRF_ERROR_RESOURCES) &&
        (err_code != NRF_ERROR_BUSY) &&
        (err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
		(err_code != [NRF_ERROR_FORBIDDEN])
       )
    {
        APP_ERROR_HANDLER(err_code);
    }
}

[ovrebekk]

Hi 

The FORBIDDEN error occurs if you are trying to send data before the link is encrypted (paired).

You have to ensure that you go through pairing before you try to send anything over the link, since the HID service requires encryption to be enabled. 

Best regards
Torbjørn 

[Taylor]

Thanks for your reply. I add the judgement of status before using HID and solve it now.

[ovrebekk]

Glad to hear you were able to solve it, I will close the case then