SWRA749 September   2022

 

  1.   Abstract
  2.   Trademarks
  3. 1Device Power Up
    1. 1.1 Required Voltage Rail and Signal Sequence
    2. 1.2 nSHUTDOWN and HCI_RTS
  4. 2UART Communication
  5. 3Device Initialization Procedure
  6. 4Basic Bluetooth Operations
  7. 5Bluetooth RF FCC Modes
    1. 5.1 Continuous TX
    2. 5.2 Packet RX TX
    3. 5.3 Continuous RX
  8. 6Bluetooth RF SIG Mode
  9. 7Bluetooth Low Energy Testing
    1. 7.1 Transmitter Test
    2. 7.2 Receiver Test
  10. 8Revision History

6 Bluetooth RF SIG Mode

The Bluetooth RF SIG mode is meant for connecting with a Bluetooth tester where the CC256x is controlled over the LMP (Link Management Protocol). The procedure for enabling the CC256x for Bluetooth SIG mode is:

  1. Proper device power-up
  2. Load the correct service pack
  3. Load the DUT script (three HCI commands)

Once the device (DUT) is in test mode, the Bluetooth tester will, through the RF connection (LMP), take control of the DUT.

GUID-20220726-SS0I-J28J-X4WD-STJN2F7GNFP9-low.jpg Figure 6-1 CC256x Bluetooth RF SIG Mode Test Setup

The HCI commands to put the device in test RF SIG mode are:

  • HCI_Set_Event_Filter 0x02, 0x00, 0x03
  • HCI_Write_Scan_Enable 0x03
  • HCI_Enable_Device_Under_Test_Mode

This script will make the device visible and connectable (HCI_Set_Event_Filter ), auto-accept all connections (HCI_Write_Scan_Enable ) and put the DUT in test mode (HCI_Enable_Device_Under_Test_Mode). Once the proper sequence has been completed (first loading the Bluetooth service pack and then the DUT script), then the Bluetooth tester will take control of the device through the RF link (LMP).