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https://issues.apache.org/jira/browse/MYNEWT-484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15657873#comment-15657873
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David G. Simmons commented on MYNEWT-484:
-----------------------------------------
If Blinky (or another app, as far as I can tell) is running, you can't load a
bootloader without first either erasing the chip or otherwise crashing mynewt
so that it is halted.
> Arduino M0 Pro does not boot
> ----------------------------
>
> Key: MYNEWT-484
> URL: https://issues.apache.org/jira/browse/MYNEWT-484
> Project: Mynewt
> Issue Type: Bug
> Components: Newt
> Affects Versions: v1_0_0_beta1
> Reporter: Sterling Hughes
> Assignee: William San Filippo
> Fix For: v1_0_0_beta1
>
>
> Tried loading and running newt on the M0 Pro, and it doesn't work. Works
> fine on the Arduino Zero.
> Doesn't work (with M0 Pro):
> targets/my_blinky_arduino_zero
> app=apps/blinky
> bsp=@mynewt_arduino_zero/hw/bsp/arduino_zero
> build_profile=debug
> syscfg=BSP_ARDUINO_ZERO_PRO=1
> targets/my_blinky_arduino_zero_boot
> app=@apache-mynewt-core/apps/boot
> bsp=@mynewt_arduino_zero/hw/bsp/arduino_zero
> build_profile=debug
> syscfg=BSP_ARDUINO_ZERO_PRO=1
> Works (with Arduino Zero):
> $ newt target show
> targets/my_blinky_arduino_zero
> app=apps/blinky
> bsp=@mynewt_arduino_zero/hw/bsp/arduino_zero
> build_profile=debug
> syscfg=BSP_ARDUINO_ZERO=1
> targets/my_blinky_arduino_zero_boot
> app=@apache-mynewt-core/apps/boot
> bsp=@mynewt_arduino_zero/hw/bsp/arduino_zero
> build_profile=debug
> syscfg=BSP_ARDUINO_ZERO=1
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