Pulse detection circuit and pulse detection method

Abstract

The invention discloses a pulse detection circuit and a pulse detection method, which can measure a higher-speed input pulse while reducing the power consumption of a microcontroller. The pulse detection circuit comprises an input module, an automatic trigger detection module and a data latching module. The input end of the input module receives an external input pulse, a pulse signal is transmitted to the clock pulse end of the automatic trigger detection module and the input end of the data latching module through the output end of the input module, and when the pulse signal is changed from a first level to a second level, the automatic trigger detection module is enabled, and the output end of the automatic trigger detection module sends a latch signal to the enabling end of the data latching module, so that the data latching module latches the pulse signal according to the latch signal.

Description

technical field [0001] The present application relates to the field of electronic technology, in particular to a pulse detection circuit and a pulse detection method. Background technique [0002] At present, with the continuous improvement of the frequency of pulse signals, high-speed pulses are widely used in the field of electronic research, and the progress of high-speed pulse technology is inseparable from the development of pulse measurement technology. Therefore, research on new technologies for measuring high-speed pulses and understanding pulse Width, phase and shape information are very important research contents. [0003] With the rise of the Internet of Things industry and wearable devices, low power consumption has become a very important research direction, but the traditional high-speed pulse measurement method needs a high-speed clock for counting. If you want to realize the automatic detection of high-speed pulses, you need to synchronize The participation...

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Problems solved by technology

[0003] With the rise of the Internet of Things industry and wearable devices, low power consumption has become a very important research direction, but the traditional high-speed pulse measurement method needs a high-speed clock for counting. If you want to realize the automatic detection of high-speed pulses, you need to synchronize The participation of the device will generate a large power consumption

At present, there are many ways to reduce the power consumption of the microcontroller. Usually, the overall power consumption of the chip is reduced by reducing the main frequency or improving the process, but reducing the main frequency will reduce the performance of the microcontroller, and the advanced process will increase cost

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