BLE Chip Design: Scanning State
The scanning state is also a fundamental state of the link layer. The host enters the scanning state through HCI commands, and the HCI commands related to scanning include: HCI_LE_Set_Scan_Parameters HCI_LE_Set_Scan_Enable HCI_LE_Set_Scan_Response_Data Scanning is divided into passive scanning and active scanning (similar to WIFI). Passive scanning means that the link layer only receives packets and … Read more