ble_evt_dispatch() receives BLE_EVT_BASE event

[shin]

Hello. After connecting with a central, ble_evt_dispatch function in main.c receives BLE_EVT_BASE event (0x01) periodically. What is this? It looks like events related with Empty PDU packets. Please let me know which my understanding is correct? I am using S110 8.0. Thank you.

[Susheel Nuguru]

enum BLE_COMMON_EVTS
{
  BLE_EVT_TX_COMPLETE  = BLE_EVT_BASE,  /**< Transmission Complete. @ref ble_evt_tx_complete_t */
  BLE_EVT_USER_MEM_REQUEST,             /**< User Memory request. @ref ble_evt_user_mem_request_t */
  BLE_EVT_USER_MEM_RELEASE              /**< User Memory release. @ref ble_evt_user_mem_release_t */
};

you are getting a TX_COMPLETE event. This will be used to tell that particular number of data packets have been transmitted. This is not used for EMPTY PDU which are used to to just keep the connection alive.

This is same as in Core specifications V4.2 7.7.19 Number Of Completed Packets Event

[shin]

Hi Aryan, thank you very much for your explanation. I cannot find the 7.7.19 in Core specifications V4.2. Please let me know the link. My understanding is this: when a peripheral (PCA10028) sends any packet, TX_COMPLETE event happens. On the other hand, when it receives any packet, the event doesn't happens. Is it correct understanding? Thank you in advance.

[Susheel Nuguru]

Core Specs 4.2 Vol 2 Part E 7.7.19 Download it here

TX complete event happens on sending not on receiving, so your understanding is correct.