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A real-time clock rtc adjustment device and method

A technology for adjusting devices and real-time clocks, applied in the direction of generating/distributing signals, etc., can solve the problems of high power consumption, large RTC precision adjustment circuit area, etc., and achieve the effect of low power consumption and small circuit area

Active Publication Date: 2019-06-04
DATANG MICROELECTRONICS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above technical problems, the present invention provides a real-time clock RTC adjustment device and method to solve the problems of large area and high power consumption of the RTC precision adjustment circuit

Method used

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  • A real-time clock rtc adjustment device and method
  • A real-time clock rtc adjustment device and method
  • A real-time clock rtc adjustment device and method

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Embodiment Construction

[0054] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0055] The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0056] Such as figure 2 As shown, the embodiment of the present invention provides a real-time clock RTC adjustment device, including:

[0057] An adjustment module, configured to adjust parameters according to the second clock cycle, and adjust the sec...

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Abstract

The invention discloses a device and method for adjusting a real time clock (RTC). The device comprises an adjusting module and a compensating module, wherein the adjusting module is used for adjusting the second clock period of a second clock count generator of the RTC according to a second clock period adjusting parameter, the compensating module is used for compensating for a 32K clock of the second clock count generator of the RTC according to a 32K clock compensating parameter, and the second clock period adjusting parameter and the 32K clock compensating parameter are calculated according to the clock information of the RTC. According to the device and method for adjusting the RTC, the timing accuracy of the RTC is accurately adjusted in a digital circuit mode, a hardware circuit is small in area and low in power consumption, and the accuracy of the RTC can be adjusted at will as required.

Description

technical field [0001] The invention relates to real-time clock technology, in particular to a real-time clock RTC adjustment device and method. Background technique [0002] The real-time clock RTC module provides a stable system time for the SoC system, and the accuracy of the system time is very important for the SoC system. The timing accuracy adjustment of the RTC module can compensate the time deviation of the RTC module due to crystal oscillator errors, temperature changes and external factors. The RTC precision adjustment scheme in the prior art mainly uses the ADC temperature detection module, error calculation module, compensation calculation module and second pulse generation module to calculate the crystal oscillator error and the compensation value adjustment counter, and to correct the second pulse to realize the precision adjustment function of the RTC module . However, these measures need to use analog circuits to detect and calculate crystal oscillator err...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/14
CPCG06F1/14
Inventor 温泉赵红敏郝晓东龚宗跃韩晓晶
Owner DATANG MICROELECTRONICS TECH CO LTD