Multi-channel cascade application system and data processing control method thereof

Abstract

The invention discloses a multi-channel cascade application system and a data processing control method thereof. The multi-channel cascade application system comprises a controller, a cascade chip andan LED lamp. The controller is connected with the cascade chip; the cascade chip is connected with the LED lamp; wherein the cascade chip is provided with an E-fuse storage chip, an instruction setting chip initial address module, a module for judging whether an E-fuse address and a chip initial address are the same or not, and the like, and the E-fuse storage chip of the cascade chip at least stores three groups of E-fuse storage chip addresses and chip initial states. According to the invention, the original application system is used universally, the use cost is not increased, the application reliability of the LED display parallel application system is improved, the display refresh rate is improved, and the multi-path parallel LED display application system is used safely, effectivelyand correctly.

Description

technical field [0001] The invention relates to a cascade application system, in particular to a multi-channel cascade application system and a control method for data processing thereof. Background technique [0002] The multi-channel LED display cascading application system includes a controller and a cascading chip, etc., the controller sends data, and the cascading chip receives and displays the data and forwards the data, etc. The existing LED display cascade application system is divided into LED display series application system and LED display parallel application system. [0003] The LED display series application system only needs a controller to generate and send data, and the series chip receives and displays the data and forwards the data. LED display series application system has the advantage of low cost in the general display application effect (separate chip address unit and signal amplifier that can be set at any time are not required); LED display series ...

AI Technical Summary

Problems solved by technology

The LED display parallel application system has high reliability. If a parallel chip in the LED display parallel application system is damaged, it will not affect the data sampling and display of other parallel chips in the LED display parallel application system; at the same time, the LED display parallel application system The cost is high, not only need the chip address unit that can be set at any time (using the EEPROM chip, packaged with the parallel chip), but also use the IIC protocol communication between the EEPROM chip and the parallel chip. Power on again after power on, etc.), may lead to errors in the IIC communication protocol between the EEPROM chip and the parallel chip, resulting in wrong address writing, resulting in abnormal display, etc.; the existing LED display parallel application system uses the standard DMX512 communication protocol, re-send The display data starts from address 0. Assuming that the LED display parallel application system has 200 cascaded chips, and only the last 100 cascaded chips display color changes next time, the displayed data is still the data of 200 chips, and the data of the first 100 chips For invalid data, the refresh rate of the displayed data is reduced; because of the attenuation of the transmission signal, etc., it is necessary to add a signal amplifier to the LED display parallel application system to amplify the transmission signal to ensure that the LED display parallel application system correctly samples the data and displays it correctly Wait

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