About 一李.1

一李.1 · 2020-12-09

In the interrupt of serial port 1, data is output in both serial port 1 and serial port 2. Serial port 1 first sends data, then serial port 2 sends data. After serial port 1 outputs a few frames of data at the beginning, there is no data output, whil...

一李.1 · 2020-12-09

The typesetting of the second picture is inconsistent with that of the datesheet, does it exist? In addition, what is the meaning of E3 and E4, and what is the meaning of "X"

一李.1 · 2020-12-07

一李.1 · 2020-12-09

Dear sir，Any answers to my second question? TKS

一李.1 · 2020-12-09

Screen printing should be laser，Why are the typesetting of Screen printing for E4 and E3 different? The "X" in the left picture is behind the model, and the "2" in the right picture is behind the datecode. At the same time, the internal picture of th...

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STM32F103VCT6，Serial port 1 interrupts, and simultaneously outputs data in serial port 1 and serial port 2. Serial port 1 stops sending after just a few frames of data are output, while serial port 2 still has data output.Is there a solution？

Will there be different typesetting for ST 32-bit MCU body screen printing of the same model? Will there be different screen printing layouts due to different origin, packaging and environmental materials.

We saw the meaning of material screenprinting from datasheet，but we just saw“X�?there is no other Version of the code. Howeverwe saw some other numbers such as “2�?behind the Date code, for example the below picture So wewould like to know the meaning of 2

Re: Will there be different typesetting for ST 32-bit MCU body screen printing of the same model? Will there be different screen printing layouts due to different origin, packaging and environmental materials.

Re: Will there be different typesetting for ST 32-bit MCU body screen printing of the same model? Will there be different screen printing layouts due to different origin, packaging and environmental materials.