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Open source Python library for programming and debugging Arm Cortex-M microcontrollers

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We have had a report from someone internally using pyocd on a windows 10 system with a DAPLINK programmer trying to program an nRF52840 module whereby after it has finished,...

under-investigation

Thank you for this great project. I have been using it as part of the [Zephyr project](https://www.zephyrproject.org/) and it works great. I am using ARM semihosting for my `printf` statements...

bug
gdbserver

Is there any support for [Segger's RTT protocol](https://wiki.segger.com/RTT) in PyOCD? If not, I may be in a position to add something, but I don't want to reinvent the wheel if...

Hi all, I decided to open this issue while not having complete certainty that the problem I'm facing is directly related with pyocd and if so, forgive me for the...

question
gdbserver

The bot created this issue to inform you that pyup.io has been set up on this repo. Once you have closed it, the bot will open pull requests for updates...

Hello, I'm attempting to use pyocd to flash and debug the ARM Musca S1 board. Every time I attempt to communicate with the board I get a weird memory fault:...

target
under-investigation

Platform: Linux, macOS, Windows (logs attached are from macOS) Board: B-L4S5I-IOT01A (https://os.mbed.com/platforms/B-L4S5I-IOT01A/) Toolchain: ARMC6 (but I'm pretty sure that issue is also reproducible for GCC_ARM) pyOCD: 0.30.3 (issue exists also...

target

Trying to run `pyocd` on Raspberry Pi. Tried installing dependencies manually and installed `pyocd` with `--no-deps` as suggested in [installing_on_non_x86.md](https://github.com/pyocd/pyOCD/blob/master/docs/installing_on_non_x86.md). `pip3` succeeds installing, but `pyocd` throws `DistributionNotFound` at runtime, even...

when I run `pyocd pack update`, this happens: ``` tether@Nervous-Carrier ~> pyocd pack clean 0000244:INFO:pack_cmd:Removing all pack data... tether@Nervous-Carrier ~> pyocd pack update 0000255:INFO:pack_cmd:Updating pack index... 22:05:04 [WARN] Sending fatal...

cmsis-pack

The documentation in https://github.com/pyocd/pyOCD/blob/main/docs/security.md does a great job of describing how to unlock a chip if it is locked (although it seems a little out of date, some of the...