Data sampling method in encoder, single-chip microcomputer and storage medium

Abstract

The invention provides a method for sampling data in an encoder, a single-chip microcomputer and a storage medium. The method applied to a single-chip microcomputer includes: a central processing unit responds to the reception of a trigger signal, and determines the number of received trigger signals; the trigger signal is a timer every The first set time length is sent once; the central processing unit executes the first instruction set corresponding to the number of received trigger signals in the first instruction set set; the first instruction set set includes a plurality of first instruction sets, each first The instruction sets all contain several assembly instructions, and the execution time of at least part of the first instruction set is shorter than the first set duration; when the first instruction set is executed, the central processing unit executes the first data output from the output terminal of the target sensor Sampling; the central processing unit executes the second instruction set when the execution of the current first instruction set is completed and the next trigger signal is not received; the execution priority of the second instruction set is lower than that of the first instruction set.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a data sampling method in an encoder, a single-chip microcomputer and a storage medium. Background technique [0002] During the operation of the encoder, it is necessary to sample the output data of sensors such as position sensors and temperature sensors. In a general encoder, an FPGA chip is usually used to perform parallel sampling on multiple sensors, but the cost of the FPGA chip is relatively high. [0003] Although the cost of single-chip microcomputer is lower than that of FPGA, single-chip microcomputer does not have the ability of parallel processing because it only has a single central processing. If multiple sensors are sampled in a serial manner, each sensor will have different execution priorities and different data sampling cycle lengths, resulting in high priority sampling tasks with long sampling cycles versus low priority sampling tasks. It caused the problem t...

AI Technical Summary

Problems solved by technology

In general encoders, FPGA chips are usually used to sample multiple sensors in parallel, but the cost of FPGA chips is relatively high

[0003] Compared with FPGA, although the cost of single-chip microcomputer is lower, but single-chip microcomputer does not have the ability of parallel processing because it only has a single central processing

If multiple sensors are sampled in a serial manner, each sensor will have different execution priorities and different data sampling cycle lengths, resulting in high priority sampling tasks with long sampling cycles versus low priority sampling tasks. The problem that the execution interval of the sampling task is too long

Images