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https://e2e.ti.com/support/wireless-connectivity/bluetooth-group/bluetooth/f/bluetooth-forum/1098591/cc2540emk-usb-cc2540emk-usb
要将CC2540 USB加密狗用作COMM设备，需要哪个固件？ 是否有人会发布特定文件的链接？
如果您希望CC2540 USB加密狗充当BLE NCP并与诸如BTool之类的主机通信，则应将CC2540_USBdongle_HostTestRelease_All.hex下载到它。 我为您附上了参考十六进制文件。
e2e.ti.com/.../8156.CC2540_5F00_USBdongle_5F00_HostTestRelease_5F00_All.zip</s>2540
如果您希望CC2540 USB加密狗充当BLE嗅探器，则应将Sniffer_FW_CC2540_USB.HEX下载到其中。 我还附上Sniffer_FW_CC2540_USB.HEX供您参考。
e2e.ti.com/.../6404.sniffer_5F00_fw_5F00_cc2540_5F00_usb.zip</s>2540
