Serial port baud rate calibration method and device
By using a serial port baud rate calibration method and device, the serial port baud rate of different electronic systems is calibrated, solving the bit error problem between electronic systems and realizing higher precision serial communication.
CN115617726BActive Publication Date: 2026-06-26联想长风科技(北京)有限公司
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 联想长风科技(北京)有限公司
- Filing Date
- 2022-09-05
- Publication Date
- 2026-06-26
AI Technical Summary
Technical Problem
Because of the large deviation in serial port baud rate between different electronic systems, serial communication is prone to bit errors.
Method used
A serial port baud rate calibration method and device are adopted. The signal is detected and simulated through the core module, the first analog serial port and the second analog serial port. The serial port baud rate is calibrated to realize signal interaction between physically isolated electronic systems. The core module is used to analyze the baud rate of the input signal and adjust the output baud rate.
Benefits of technology
It improves the control precision of serial port baud rate, reduces signal transmission errors, and ensures the reliability and stability of communication between systems.
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Figure CN115617726B_ABST
Abstract
The application discloses a serial port baud rate calibration method and device, and relates to the technical field of baud rate calibration, and the method comprises the following steps: acquiring a first analog serial port and a second analog serial port according to a core module; inputting a first output signal of a first system output module into the core module for signal detection simulation through the first analog serial port, and then sending the signal to a second system input module through the second analog serial port; inputting a second output signal of a second system output module into the core module for signal detection simulation through the second analog serial port, and then sending the signal to a first system input module through the first analog serial port. The technical problem that errors are prone to being generated due to the large baud rate deviation between different electronic systems in the prior art is solved.
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