2023-12-03 06:06 PM
how to tell the stm32(f103c8t6) chip between the fake and the original
2023-12-03 07:39 PM
No test can be perfect, but this does a pretty comprehensive job:
https://mecrisp-stellaris-folkdoc.sourceforge.io/bluepill-diagnostics-v1.6.html
Generally, if you bought it from ebay or amazon or another purveyor of fake and counterfeit goods, it's likely fake. Official distributors will likely be genuine.
2023-12-03 08:59 PM
Review the top side markings, and electronically reported JTAG identification and DBGMCU DEVID