How can I send hid data with TIMER1_IRQHandler strict every 8ms?

[gootoomoon]

I find it unstable to send hid data, even if I set timer 1 every 8ms to send hid data.

I can catch data bag from wireshark it seems that interval of two data even close to 1ms.

How can this happen?

but if I set timer every 15ms, it become more stable.

But I need send it every 8ms, can you help?

It is very stable in lenovo N700 mouse (nrf51822)

test soft is in attachments

Best regards

MouseMovementRecorder.zip

[gootoomoon]

I try this code

void mouse_send_on_radio_active_evt(bool radio_active)
{
          m_radio_active = radio_active;
	  mouse_sensor_send();
}

/**@brief Function for initializing the Radio Notification event.
 */
static void radio_notification_init(void)
{
    uint32_t err_code;


    err_code = ble_radio_notification_init(NRF_APP_PRIORITY_HIGH,
                                           NRF_RADIO_NOTIFICATION_DISTANCE_4560US,
                                           mouse_send_on_radio_active_evt);

  	APP_ERROR_CHECK(err_code);
}

and try to executed mouse_sensor_send(); before the connection interval occurs but it's not work as I expected.