BT/BLE UART HCI Transceiver Example

Source code path: example/bt/HCI_over_uart/src

Supported Platforms

eh-lb52x
eh-lb56x
eh-lb58x

Overview

This example demonstrates HCI communication with BT/BLE controller through uart1.

Example Usage

After the example starts, HCI commands can be sent to the controller through uart1, and HCI events will also be sent back to uart1.

The default console log port for 52x is uart3 (see project/sf32lb52x/proj.conf)

The default console log port for 56x/58x is uart4 (see project/sf32lb56x/proj.conf) (see project/sf32lb58x/proj.conf)

Hardware Requirements

Before running this example, you need to prepare:

One development board supported by this example (Supported Platforms).

menuconfig Configuration

None

Compilation and Flashing

Switch to the example project directory and run the scons command to compile:

> scons --board=eh-lb525 -j32

Switch to the example project/build_xx directory and run uart_download.bat, select the port as prompted to download:

$ ./uart_download.bat

     Uart Download

please input the serial port num:5

For detailed compilation and download steps, please refer to the relevant introduction in Quick Start.

Expected Results

After the example starts: HCI commands can be sent to the controller through uart1, and HCI events will also be sent back to uart1.

For example: Send hexadecimal 01 03 0C 00 (need to add carriage return and line feed) through uart1, uart1 will receive hexadecimal 04 0E 04 06 03 0C 00

Exception Diagnosis

Reference Documentation

Update History

Version	Date	Release Notes
0.0.1	01/2025	Initial version