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3.4
Headers
The following headers are available on the BT4 Evaluation Board.
Figure 3.4 - Header Descriptions
3.4.1
J14 - Host UART:
Located on the bottom edge of the board, the Host UART port is provided to be able to communicate to the BT4
SoC and the BT4 Radio IP. The following board configuration is required:
The board must be powered via 5 volts (external supply or USB) to be able to use this port.
The UART Jumpers (J8 & J9) must be in the Header position (See Section 3.3.43.3.4).
The FW mode (J19) must be set to “HCI” FW mode (See Section 4).
The UART speed is 115200 baud, 8 bit, 1 stop, no flow control
Please note that the UART supports 3.3 volt signal level.
A USB to UART cable is provided in the Kit that
supports 3.3 volt signal level.
If you are connecting the Eval board to the RS-232 port of test equipment, you
will need to install a signal level shifting cable or adapter!