Hi, when I bought some stuff from Seeedstudio last time, I added a Longan Nano to the purchase since it was really cheap and wanted to give it a try. I played around with it for a few days and managed to get some basic support for NuttX, but it seems either the core has some issues during debug or the tooling is not up to par yet. For starters it appears that you cannot reset the chip via debug connection so there's some hack needed for that to work. But I'm having even worse issues with openocd while debugging (memory reads react differently depending of if I single-step or just use breakpoints). Hopefully this is a bug in the (forked) openocd I used and not some chip errata.
By any chance anyone tried to work with this chip? It is not particularly interesting to me (it is mostly a clone of STM32F103), but I figured it could be good to support it if it ends up being used in products, such as the Pine64 Pinecil soldering iron. Best, Matias
