Mixed signal transmission method

Abstract

The invention relates to a mixed signal transmission method which comprises the following steps of: generating frequency signals which contain a high-level period and a low-level period of an equal time value in each cycle; and adjusting the high-level period and the low-level period of the frequency signals according to data signals, wherein when the data signals correspond to the frequency signals in a low-level cycle, the high-level period and the low-level period in the cycle of the frequency signals are kept equal, and when the data signals correspond to the frequency signals in a high-level cycle, the cycle of the frequency signals is a proportion for adjusting the high-level period and the low-level period, thereby generating mixed signals of a mixed result of the frequency signals and the data signals.

Description

technical field [0001] The present invention relates to a mixed signal transmission method, and in particular to a mixed signal transmission method for mixing frequency signals and data signals. Background technique [0002] During the development process of software or firmware, debug information will be a good helper to help developers find errors. Generally, in higher-level debugging hardware such as ICE, the hardware can be directly used to obtain debugging information for debugging. However, the cost of these debugging hardware is relatively high and cannot be purchased in large quantities. If only the GPIOs are used to output the debugging information, a lot of GPIOs are often required for different information such as information volume and frequency, which becomes another burden. [0003] Therefore, how to design a new mixed-signal transmission method to simultaneously output data and frequency signals through a single output port to efficiently use the output port ...

AI Technical Summary

Problems solved by technology

Generally, in higher-level debugging hardware such as ICE, you can directly use the hardware to obtain debugging information for debugging. However, the cost of these debugging hardware is high, and it cannot be purchased in large quantities.

If only the general-purpose input and output ports are used to output the debugging information, many general-purpose input and output ports are often required due to different information such as information volume and frequency, which becomes another burden.

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