1 Introduction
The microcontroller is STM32L011F4P6.
IO is introduced in full.
Comes with CH340N serial port location.
Supports TYPE-C direct plug-in serial port download.
There is one LED on board, one user button and one reset button.
Supports welding an external 3225 passive crystal oscillator.
See the picture below:
2 What should be written here?
The test program is below, developed with STM32CubeIDE.
Okay, there’s nothing to say, I’ll just talk about the core board after I think about it.
Oh, yes, some of Lao Wang's disassembled microcontrollers cannot measure the external clock and will not pass the clock initialization stage. Please pay attention when disassembling the components.
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