FPGA-based enhanced serial port
An enhanced, serial port technology, applied in the direction of instrumentation, electrical digital data processing, etc., can solve the problems of occupying the main program time, consuming hardware resources, occupying its own resources and processing time, etc., to achieve accurate baud rate control, baud rate The effect of fast switching speed and simple operation
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[0033] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.
[0034] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.
[0035] When performing data transmission, the start bit is sent first, then the data bit, and finally the stop bit.
[0036] Receive data: When the data arrives, the design detects the start bit and immediately starts the receiving logic, samples the middle position of each bit of data according to the baud rate setting, and starts the "receiving timeout judgment logic" module at the same time to detect this time Whether the data stream has b...
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