【经验】如何在SILICON LABS蓝牙AoA基站方案的基础上增加蓝牙广播功能?
目前SILICON LABS提供的蓝牙AoA基站端仅有接收功能,在实际应用场景下,基站端有些参数需要人为配置,需要基站端能发起一个可连接广播,与手机APP连接后进行参数配置,本文将指导如何在蓝牙AoA基站的基础上,增加蓝牙广播功能。
1、 在蓝牙AoA基站天线阵列板端程序bt_aoa_ncp_locator中添加Dynamic GATT Database组件,重新编译并烧录到板子上。
2、 在HOST端的程序bt_aoa_host_locator工程下,修改Makefile,增加蓝牙广播相关组件以及配置。
代码如下:
BGBUILD = $(SDK_DIR)/protocol/bluetooth/bin/gatt/bgbuild.py
include $(SDK_DIR)/app/bluetooth/component_host/ncp_gatt.mk
autogen
autogen/gatt_db.c \
PROJ_FILES += $(wildcard $(SDK_DIR)/protocol/bluetooth/bin/gatt/*)
PROJ_FILES += config/btconf/gatt_configuration.btconf
HELP_MESSAGE += " gattdb - generate GATT database\n"
.PHONY: gattdb
gattdb:
@echo Generate GATT database
@python $(BGBUILD) config/btconf -o autogen
autogen/gatt_db.c: config/btconf/gatt_configuration.btconf
@echo
@echo The GATT database might be outdated. Please run: make gattdb
@echo
3、 将bt_host_empty工程目录下config文件夹内btconfig文件夹拷贝到bt_aoa_host_locator工程的config文件夹中,btconfig文件夹内的配置文件可以通过Simplicity Studio V5打开并修改蓝牙广播相关配置。
4、 在bt_aoa_host_locator工程目录下创建autogen文件夹,同时使用指令make gattdb生成对应的gattdb.c和gattdb.h。
5、 至此,蓝牙AoA基站端的发蓝牙广播环境已经移植好,后续可以通过在app.c中加入蓝牙广播相关代码实现发蓝牙广播,具体代码可参考bt_host_empty。
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