将OpenThread闪存到Adafruit FeathernRF52840上

Question

大家好，

在这个OpenThread的帮助下，我目前正在尝试将nRF52840闪存到Adafruit Feather nRF52840 Express上。

我使用的硬件和软件：

• Adafruit Feather nRF52840 Express，通过USB连接。
• 我在macOS和Ubuntu上试过。
• JLink版本: 17.0.2
• nrfjprog版本: 10.17.3外部
• 引导程序: UF2引导程序0.6.2

当我试图闪存我的设备时，我会收到以下错误消息：

ERROR: No debuggers were discovered.
NOTE: For additional output, try running again with logging enabled (--log).
NOTE: Any generated log error messages will be displayed.

如果我在启用- log标志的情况下运行它，就会在日志文件中得到以下内容：

[ info]: --------------------------------------------------------------------------------
[ info]: nrfjprog -f nrf52 --chiperase --program ot-cli-ftd.hex --reset --log
[ info]: nrfjprog version 10.17.3 external
[ info]: --------------------------------------------------------------------------------
[ info]: Load library at /Applications/Nordic Semiconductor/lib/libnrfjprogdll.dylib.
[ info]: Library loaded, loading member functions.
[ info]: Member functions succesfully loaded.
[debug]: [ Client] - open
[debug]: [ Client] - start
[ info]: [ Client] - stdout: Jlinkarm nRF Worker ready. Handling sequence 4a6ee3a6-2ab7-4ca7-841c-942cb217da23.
[trace]: [ Client] - Command open executed for 11 milliseconds with result 0
[debug]: [ Client] - config
[trace]: [ Client] - Command config executed for 2 milliseconds with result 0
[debug]: [ Client] - enum_emu_snr
[trace]: [ Client] - Command enum_emu_con_info executed for 0 milliseconds with result 0
[debug]: [SeggerBackend] - Logger sink registered in Segger backend logger
[debug]: [  JLink] - Logger sink registered in JLink logger
[debug]: [  nRF52] - open
[debug]: [  nRF52] - just_check_family
[debug]: [SeggerBackend] - open_dll
[debug]: [SeggerBackend] - No J-Link DLL path was provided. Attempting to auto detect.
[ info]: [SeggerBackend] - Load library at /Applications/SEGGER/JLink/libjlinkarm.7.66.1.dylib.
[ info]: [SeggerBackend] - Library loaded, loading member functions.
[ info]: [SeggerBackend] - Member functions succesfully loaded.
[debug]: [SeggerBackend] - Set batch mode
[debug]: [SeggerBackend] - dll_version
[ info]: [SeggerBackend] - Segger dll version 7.66.a loaded.
[trace]: [ Worker] - Command open executed for 4 milliseconds with result 0
[debug]: [  nRF52] - config
[trace]: [ Worker] - Command config executed for 2 milliseconds with result 0
[debug]: [  nRF52] - enum_emu_con_info
[debug]: [SeggerBackend] - is_connected_to_emu
[debug]: [SeggerBackend] - enum_emu_con_info
[debug]: [SeggerBackend] - is_connected_to_emu
[trace]: [ Worker] - Command enum_emu_con_info executed for 0 milliseconds with result 0
[debug]: [  nRF52] - close
[debug]: [SeggerBackend] - is_connected_to_emu
[debug]: [SeggerBackend] - close
[debug]: [SeggerBackend] - disconnect_from_emu
[debug]: [SeggerBackend] - is_connected_to_emu
[debug]: [SeggerBackend] - Segger Backend closed.
[debug]: [  nRF52] - nRF family DLL closed
[trace]: [ Client] - Command close executed for 10 milliseconds with result 0
[debug]: [ Client] - terminate
[trace]: [ Client] - Command terminate executed for 0 milliseconds with result 0
[trace]: [ Worker] - Command close executed for 10 milliseconds with result 0
[trace]: [ Worker] - Command terminate executed for 0 milliseconds with result 0
[trace]: [ Worker] - Executed 5 commands for 16 milliseconds
[debug]: [ Client] - Child process terminated with result 0
[debug]: [ Client] - Worker process exited with code: 0
[debug]: [ Client] - Worker process exited with code: 0
[trace]: [ Client] - Executed 5 commands for 23 milliseconds
[debug]: [ Client] - terminate

因此，基本上，闪烁不工作，但我不知道为什么，我不能真正看到任何问题，在日志文件。有谁知道或能以任何方式帮助我吗？我有可能需要SEGGER J调试器吗？

谢谢你的帮助。

向你问好，艾米丽

Answer 1

您是正确的，您将需要一个J-链接调试器或其他一些外部程序员.您链接到的指南使用的是nRF52840 DK，它上有一个SEGGER (如果您查看该站点，它是白色方格)。

这是一件很有用的事情，特别是如果你打算在将来更换所有固件(或者实际上是调试:D)。

Answer 2

Adafruit FeathernRF52840的nRF52840附带了Adafruit nRF52 UF2引导程序，您可以使用它来闪存OpenThread而不需要额外的硬件。

OpenThread需要使用OT_BOOTLOADER=USB选项编译，如下所示：

./script/build nrf52840 USB_trans -DOT_BOOTLOADER=USB

(请参阅src/src 52840/readme.md来自ot-nrf528x.git)。

现在，您将看到对U2F的转换：

start address: 0x1000

在UF2编程之后，董事会应该按预期工作。