clock quartz 32.768 kHz

[emihappens]

Is clock quartz 32.768 kHz used in the firmware of the classic bluepill? I want to make my own board and I doubt whether I should install this quartz or not?

[vostrenkov]

Hi, RTC is not used in the FW, so 32kHz XTAL is not necessary.
You can refer to https://github.com/FreeJoy-Team/Controller-Lite