Infineon Cypress BCM4334, Руководство пользователя, Страница: 11 / 38

Measuring Current Consumption in Different Power Modes
www.cypress.com Document No. 002-14914 Rev. *C 10
5.3 Standard 2.56s Inquiry Scan Mode
This section explains how to set the BCM4324/BCM4334 to Standard 2.56s Inquiry Scan mode. Steps include the
following and apply only to the DUT:
■ Set the HCI Control Transport profile.
■ Reset the DUT.
■ Set the Sleepmode Parameters.
■ Set the Scan Type.
■ Generate 4096 slots for 2.56s of activity.
■ Set the Current IAC Lower Address Portion (LAP) parameters.
■ Set the Write Scan Enable parameters.
This section concludes by specifying the approximate ammeter range setting for measuring the current being con-
sumed by the DUT.
Before you begin, set up and turn on the test equipment and launch Cypress BlueTool.
Set the HCI Control Transport profile
1. Open a log window. On the View menu, click Log Window .
2. Set the HCI Control Transport profile.
a. On the Transport menu, click HCI Control .
b. In HCI Control Window Transport:
■ Select UART .
■ In the top UART list, type the COM port of the PC that the DUT is connected to ( com4 ).
■ In the bottom UART list, select 115200 .
■ Select the CTS flow control check box, and then click OK .
Reset the DUT
1. In HCI Control: com4@115200, press the 3 key on the keyboard to select the Host Controller & Baseband
commands.
2. In the list of Host Controller & Baseband commands, double-click Reset .
Set the Sleepmode parameters
1. In HCI Control: com4@115200, press the 0 key on the keyboard to select the Vendor-specific commands.
2. In the list of Vendor-specific commands, double-click Set_Sleepmode_Param .
3. In HCI Command: Set_Sleepmode_Param (com4@115200):
a. Make the following settings:
■ Sleep_Mode UART
■ Idle_Threshold_Host 0x0
■ Idle_Threshold_HC 0x0
■ BT_WAKE_Active_Mode Active High
■ Host_WAKE_Active_Mode Active High
b. Select the following check boxes, and then click OK :
■ Allow_Host_Sleep_During_SCO
■ Combine_Sleep_Mode_And LPM
■ Enable_Tristate_Control_Of_UART_Tx_Line
Set the Scan Type
1. In HCI Control: com4@115200, press the 3 key on the keyboard to select the Host Controller & Baseband
commands.
2. In the list of Host Controller & Baseband commands, double-click Write_Inquiry_Scan_Type .
3. In HCI Command: Write_Inquiry_Scan_Type (com4@115200), in the Scan_Type list, select Mandatory
Standard Scan , and then click OK .