STM32F103C8T6 core board minimum system board (verified)

The minimum system board of STM32F103C8T6 is drawn strictly according to the manual. **For the 32.768KHZ crystal oscillator, it should be OK to choose 6pf or 7pf. You cannot choose 12.5pf** (The manual says so. If you have to use it, I don’t know what the impact will be. ) I will try it first when my board arrives. For single BOM devices, you can place an order at Lichuang Mall.
## **The effect demonstration is moved to Station B: [ https://b23.tv/M6yph36]( https://b23.tv/M6yph36)**
#### **A close-up**``
![ WeChat picture_20230720151717.jpg] ![WeChat picture_20230720151721.jpg] (With Kunkun on the actual test board, the performance is improved by 200%)

**First light a lamp (onboard PB13) and try it**
See the video at the bottom
for perfection Light up

**Drive OLED screen**
! [WeChat picture_20230720151732.jpg] The functions are normal and

the measured functions are normal. The only small problem is that the st-link will disconnect from the computer when the board and st-link are hot connected. The link needs to be re-plugged and re-plugged. I don't know why, can anyone help me to correct it? I guess it's because the current is too high when the link is connected and the link's power supply is insufficient?