Digital clock calibration method, wireless remote controller and storage medium

Abstract

The invention discloses a digital clock calibration method, a wireless remote controller and a storage medium, the digital clock calibration method is applied to an embedded single-chip microcomputer system, the embedded single-chip microcomputer system is provided with a low-speed oscillator OSC1, a high-speed oscillator OSC3, an RTC timer and a counter T16, and the digital clock calibration method comprises the following steps: when the RTC timer is interrupted, starting the counter T16; determining a first count value of a counter T16 in a first interrupt period of the RTC timer; determining a counting error value and a clock compensation type according to the first counting value and a calibrated second counting value; and performing timing calibration of the clock signal according to the second count value, the count error value and the clock compensation type. According to the digital clock calibration method, calibration of the digital clock can be achieved without an external high-speed ceramic oscillator or an external low-speed crystal oscillator, the cost is lower, the performance is stable, a peripheral resonant oscillation circuit is not needed, peripheral electronic components can be saved, and batch production is facilitated.

Description

technical field [0001] The invention relates to the technical field of remote controllers, in particular to a digital clock calibration method, a wireless remote controller and a storage medium. Background technique [0002] At present, the low power consumption scheme of the wireless remote controller mainly relies on the mutual switching, time-sharing processing and coordination work between the main clock oscillator and the sub clock oscillator of the embedded system. The oscillator types of existing wireless remote controllers are mainly divided into two types: the first is that the external main clock uses a high-speed ceramic oscillator, and the external sub-clock uses a crystal oscillator; the second is that the internal main clock uses a high-speed RC oscillator. , The external sub clock uses a crystal oscillator. Among them, the first type of clock accuracy depends on the accuracy of the crystal oscillator (external sub-clock), but the manufacturing process and str...

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