1. Implementation ideas
This article uses the serial port receive interrupt and idle interrupt to realize the serial port variable length data reception
Receive interrupt: realize data reception;
Idle...
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In electronic measurement technology, frequency measurement is one of the most basic measurements. The commonly used frequency measurement method and period measurement method have great limitations i...
1. Brief IntroductionThe basic principles and usage of RS485 communication are the same as RS232, with the following differences.
RS232 interface can only realize point-to-point communication, but thi...