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some nrf52840 boards boot to safe mode with rc.1 #1842

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@jerryneedell

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@jerryneedell

My PCA10059 Dongle boots to "safe mode" with CP 4.0-rc.1 or the current master but it works OK with Beta.7

Note- I did update the bootloader to v2.11 -- rc.1 does work with it on a feather_nrf52840_express

RC.1



You are running in safe mode which means something unanticipated happened.
Looks like our core CircuitPython code crashed hard. Whoops!
Please file an issue at https://github.com/adafruit/circuitpython/issues
 with the contents of your CIRCUITPY drive and this message:
Crash into the HardFault_Handler.

Press any key to enter the REPL. Use CTRL-D to reload.
Adafruit CircuitPython 4.0.0-rc.1 on 2019-04-24; PCA10059 nRF52840 Dongle with nRF52840
>>> 
>>> 
>>> 
>>> 

Current Master


Auto-reload is on. Simply save files over USB to run them or enter REPL to disable.

You are running in safe mode which means something unanticipated happened.
Looks like our core CircuitPython code crashed hard. Whoops!
Please file an issue at https://github.com/adafruit/circuitpython/issues
 with the contents of your CIRCUITPY drive and this message:
Crash into the HardFault_Handler.

Press any key to enter the REPL. Use CTRL-D to reload.
Adafruit CircuitPython 4.0.0-rc.1-19-g1a8e50c77 on 2019-05-05; PCA10059 nRF52840 Dongle with nRF52840
>>> 
>>> 
>>> 
>>> 

Beta.7


Auto-reload is on. Simply save files over USB to run them or enter REPL to disable.

Press any key to enter the REPL. Use CTRL-D to reload.
Adafruit CircuitPython 4.0.0-beta.7 on 2019-04-13; PCA10059 nRF52840 Dongle with nRF52840
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 

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