New 250MHz Clock - 128K Flash / 32K Ram with an "almost pincompatible" BluePill layout
I was looking on Ali , for a BP compatible - Faster board (better accuracy) w multi-pll for a functional USB.
And i found this board ... Where it seems like it's an almost 100% BP Pin-compatible layout
STM32H503CBT6-EVT
https://www.aliexpress.com/item/1005008172782811.htmlWatch out - WeAct & Alientek also have STM32H503CBT6 boards , but the layout isn't BP "Pin compatible approached"Someone left feedback, that the ADC is noisy (Avcc connect directly to Vcc) - Sigh ...

And that pin B2 isn't routed.
The MCU has two PLL's with multiple outputs , and even a HSI 48MHz PLL that is default routed to USB.
I succeded in CubeMx to use PLL1 (250MHz) , and PLL2 (240MHz) - PLL2Q can then be divided down to 48MHz and connected to the USB block , if one want a HSE clock for USB
Does it look feasible from a hardware compatibility point ?
Edit: I don't have a board ... Wanted some input from here first.