> Since I have a mbed LPC11U24 at hand, I wonder if it is feasible to make a > GDB--GPIO--SWD bridge with it, as a generic debugger for any Cortex M chips. > I'm uncertain, however, whether it will fits in 48 hours, and whether GPIO is > the best option, given that mbed has other pins such as ACD, SPI, etc. I think it should be feasible if you use the BlackMagic software as a baseline: https://github.com/gsmcmullin/blackmagic Hence, instead of starting from scratch, you would start from the BlackMagic software, and essentially port it to the new platform. It is also worth noting that there are a few active forks; see the github network graph. It may be useful to have a brief look at the active forks to get an idea of what the rest of the community is doing. --Pekka
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