j1sys 发布的帖子

@awwwwa does anyone have a schematic of this? my question is 3v3 or 1v8 oscillator. I guessed 1v8 since VCC-PLL is 1v8. anyone know for sure? anyone doing this in a production unit. trying to avoid simple crystal capacitance matching etc. prefer using oscillators.

-Ed

@edward-x do you mean a defective ic or a design issue on all chips. I'm tracing something similar on F113/D1s and found your post, thinking maybe T113 vs F113 might share problem.

Any progress, move to other uart or pins fix problem?