Chinese FlashKit clone mod

[frca]

There is a FlashKit clone available on AliExpress.
I was able to mod the non-SRAM variant to include the SRAM:
https://github.com/Franticware/miscella ... it-MD-SRAM

I deduced the components from a different FlashKit PCB that I found somewhere.

It was probably not that clever since they offer the 2MB SRAM variant as well. I did not realize at first that my mod would restrict the Flash ROM to 2 MB (from 4 MB).