I usually do not leave a leave a response, however I browsed a few responses on STM32 F4 Discovery tutorial uszing open source tools | Hackaday. I actually do have 2 questions foor you if it’s okay.

While 100Msps would be impressive for a small MCU, his STM32 certainly isn’t a small one and only his the RP2040 samples at 100Msps, not his STM32. Comparing a 1MHz oscilloscope with a 25Gsps ...