Chengdu Ebyte Electronic Technology Co.,Ltd. E73-2G4M08S1EX User ManualCopyright ©2012–2020,成都亿佰特电子科技有限公司 94 Development and ApplicationNo. Item Notes1 BurnFirmware1.The module is embedded with ARM MCU. For program downloading, please use the J-LINK downloader.Anyother serial port or JTAG、ISP、 ICP are unavailable to download.2.The burn firmware needs to be completed in two parts. Since the protocol stack provided by NORDIC is notloaded in the program, in the second development, you need to use the official burning tool nRFgo studio to burnthe protocol stack, and then use nRFgo studio to bum the hex of the application code; you can also use the officialburning tool nRF go studio to burn the protocol stack, and then download it with IAR or KEIL.Website of tool download:http://www.nordicsemi.com/eng/Products/Bluetooth-low-energy/nRF52832/(language)/eng-GB(网址是不是不对)2 TestingBoard Testing board is not available at present.