Hi,
We are trying to get the serial dfu example from sdk 14.2 working with an nrf52832. After flashing the device succesfully and starting up the bootloader we were unable to initiate a transfer via UART. nrfutil produces the following error message:
# nrfutil dfu serial -pkg firmware.zip -p /dev/tty.usbmodemFA1321 -b 115200 -fc 1
[------------------------------------] 0%
Traceback (most recent call last):
File "/usr/local/bin/nrfutil", line 11, in <module>
sys.exit(cli())
File "/usr/local/lib/python2.7/site-packages/click/core.py", line 722, in __call__
return self.main(*args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/click/core.py", line 697, in main
rv = self.invoke(ctx)
File "/usr/local/lib/python2.7/site-packages/click/core.py", line 1066, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/usr/local/lib/python2.7/site-packages/click/core.py", line 1066, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/usr/local/lib/python2.7/site-packages/click/core.py", line 895, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/usr/local/lib/python2.7/site-packages/click/core.py", line 535, in invoke
return callback(*args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/nordicsemi/__main__.py", line 741, in serial
do_serial(package, port, connect_delay, flow_control, packet_receipt_notification, baud_rate, True)
File "/usr/local/lib/python2.7/site-packages/nordicsemi/__main__.py", line 676, in do_serial
dfu.dfu_send_images()
File "/usr/local/lib/python2.7/site-packages/nordicsemi/dfu/dfu.py", line 129, in dfu_send_images
self._dfu_send_image(self.manifest.application)
File "/usr/local/lib/python2.7/site-packages/nordicsemi/dfu/dfu.py", line 90, in _dfu_send_image
self.dfu_transport.open()
File "/usr/local/lib/python2.7/site-packages/nordicsemi/dfu/dfu_transport_serial.py", line 211, in open
raise NordicSemiException("No ping response after opening COM port")
pc_ble_driver_py.exceptions.NordicSemiException: No ping response after opening COM port
After adding NRF_LOG to the example the following debug messages showed up in the SES RTT-client:
<info> app: Inside main <debug> app: In nrf_bootloader_init <debug> app: in weak nrf_dfu_init_user <debug> app: In real nrf_dfu_init <debug> nrf_dfu_settings: Running nrf_dfu_settings_init(sd_irq_initialized=false). <debug> nrf_dfu_flash: Calling nrf_dfu_flash_init(sd_irq_initialized=false)... <debug> nrf_dfu_flash: Initializing nrf_fstorage_nvmc backend. <debug> app: Initializing the clock. <debug> app: Enter nrf_dfu_continue <debug> app: Valid App <debug> app: Enter nrf_dfu_app_is_valid <debug> app: Return true. App was valid <debug> app: In nrf_dfu_transports_init <debug> app: num transports: 1 <info> uart: RX Id:2 len:1 <debug> app: UART initialized <debug> app: After nrf_dfu_transports_init <debug> nrf_dfu_flash: Calling nrf_dfu_flash_init(sd_irq_initialized=false)... <debug> nrf_dfu_flash: Initializing nrf_fstorage_nvmc backend. <debug> app: Waiting for events <debug> app: UART RX done <info> uart: RX Id:2 len:1 <debug> app: UART RX done <info> uart: RX Id:2 len:1 <debug> app: UART RX done <debug> app: Received ping 1 <debug> app: Sending Response: [0x9, 0x1] <info> uart: TX req id:2 length: 5. <info> uart: RX Id:2 len:1
We are on OS X using SES Version 3.34b and nrfutil 3.5.0 with python 2.7.14.
Even when using the precompiled example images located in /examples/dfu/secure_dfu_test_images/serial/nrf52832 we get the same error messages.
Any help is appreciated!
Regards, Julian
