I used this development board a long time ago and it seemed to be fine. I also did the serial port experiment. But when I used it again today, I found such a serious problem. [/color] [color=#252525]T...
Generally, the order of a four-layer board is: signal layer - ground layer - power layer - signal layer;
In order to ensure the minimum loop path, the stratum needs to remain a complete piece;
So, doe...
404724[/attach][/url][/align] [font=微软雅黑][size=3][align=center][color=#0000ff][b]March 20-22, 2019[/b][/color][/align] [align=center][color=#0000ff][b]E5 Hall 5543 · Shanghai New International Expo Ce...
[i=s]This post was last edited by bigbat on 2019-2-22 11:41[/i] The test board I received yesterday afternoon (2019/2/21) was provided by ST. The information of this board is on [url=https://www.stmcu...
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to
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answer:
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Microcontroller MCU
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