Disconection occured in a random way[Reason : BLE_HCI_CONNECTION_TIMEOUT]

Question

Hi, 
 I'm interfacing acceleration via BLE using NRF52. 
 I'm using timer to get the sensor value and update the characteristic value related to this sensor using sd_ble_gatts_hvx every timeout_ticks value configured in app_timer_start API. 
 When i set timeout_ticks above 500 ms, the BLE works corrcetly, in the opposite case, a disconnection event occured in a random way with the following reason : BLE_HCI_CONNECTION_TIMEOUT . 
 Thank you in advance.

Mehdi · Accepted Answer

Hi, I think the problem is solved,
in Fact, I changed the connection interval parameteres from : 
 #define MIN_CONN_INTERVAL MSEC_TO_UNITS(100, UNIT_1_25_MS) 
#define MAX_CONN_INTERVAL MSEC_TO_UNITS(200, UNIT_1_25_MS)
 
 to : 
 #define MIN_CONN_INTERVAL MSEC_TO_UNITS(20, UNIT_1_25_MS) 
#define MAX_CONN_INTERVAL MSEC_TO_UNITS(40, UNIT_1_25_MS)
 
 But the question now is, what is the link between connection interval and ACCELERATION_SAMPLE_TIME , knowing that I decreased this value down to 50 ms. 
 Thx

Disconection occured in a random way[Reason : BLE_HCI_CONNECTION_TIMEOUT]

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