DMX (digital dimmer protocol) 512-based chip addressing system and addressing mode thereof

Abstract

The invention discloses a DMX (digital dimmer protocol) 512-based chip addressing system and an addressing mode thereof. The chip addressing system comprises a controller and a plurality of chips to be addressed, wherein the controller is provided with a control end, a detection end and a data output end; each chip is provided with a data end, an input end and an output end; the plurality of chips are sequentially connected with one another in series and then connected between the control end and the detection end of the controller, and the data ends of the plurality of chips are respectively connected with the data output end of the controller; and the controller is used for sending address data to the chips through the data output end in sequence, and after the chips receive an addresses, the address is burn in an EEPROM (Electrically Erasable Programmable Read-Only Memory). According to the invention, the address is set only once directly through the controller during the initial use of the system and does not need to be set during subsequent use, and the manual address setting for every node is not required either, so that the workload for system installation is reduced, the possibility of errors caused by dynamic addressing is avoided, and the convenience in the use of the system is greatly improved.

Description

technical field [0001] The invention relates to the field of chip addressing, in particular to a chip addressing system and an addressing method based on the DMX512 protocol. Background technique [0002] The DMX512 protocol was first proposed by the USITT (United States Institute of Theater Technology) as a data transmission standard for dimming and lighting consoles, and an international protocol for general signal control of digital equipment in the lighting industry. The DMX512 protocol is simple, reliable, and flexible. It has been widely used in the field of lighting control in theaters, studios, and now it has been more and more used in the control system of multi-channel LED landscape lights. [0003] The premise of DMX512 application is to assign a physical address to each controlled device in the system. The traditional method of setting the physical address of the device is to configure the address dial switch on each device or provide a dedicated matching address...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems in the above-mentioned addressing technology that manual setting is error-prone, or the ease of use of the addresser is not good, or a node damaged by dynamic addressing may cause large-scale errors in the system, the present invention provides a DMX512 protocol-based The chip addressing system and its addressing method improve the convenience of system use

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