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Adding Bus Pirate/..-style debugging & probing features to regular MCU boards such as the Raspberry Pi Pico
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README.md

Dapper Mime

This unearths the name of a weekend project that I did in 2014. Both then and now, this is a port of ARM's CMSIS-DAP code to a platform without the need for an expensive proprietary compiler and USB drivers.

Whereas the original code used ST's STM32 USB drivers, this new iteration uses TinyUSB, an open source cross-platform USB stack for embedded systems.

Special Variants

A variant tailored especially for the RP2040 “Raspberry Pi Pico” is available here.

Building

After initially downloading this project's code, issue the following command to download TinyUSB and CMSIS_5 code (as well as all submodules):

git submodule update --init --recursive

Follow the TinyUSB build instructions available here, but issue the make command in the base directory of Dapper Mime.

Note that each TinyUSB board name being targeted needs a corresponding subdirectory under the Dapper Mime ./bsp/ subdirectory and a customized version of DAP_config.h for the target.

License

TinyUSB is licensed under the MIT license.

ARM's CMSIS_5 code is licensed under the Apache 2.0 license.