matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 10169
Posted: 05:13pm 03 May 2020
It has got to come from somewhere
Any device with a USB port that has software that supports DFU will work (this is what STM use). Alternatively you can of course program the chip using a ST-LINK programmer but again you will need some sort of host computer