method for high-speed communication between ARM and FPGA based on high-resolution ink-jet printer

Abstract

The invention relates to a method for high-speed communication between an ARM and an FPGA based on a high-resolution ink-jet printer. The method comprises the steps that an upper computer main controlCPU enables jet printing data and a command to be transmitted to a header module through a bus, and the header module enables the data to be divided into four corresponding lower computer data and tobe transmitted to a USB of each lower computer; in a lower computer, an FPGA (Field Programmable Gate Array) is directly connected with a USB (Universal Serial Bus) chip and an SRAM (Static Random Access Memory) storage chip, and the FPGA directly stores data sent by a USB into an SRAM to wait for jet printing; a USB bus of the upper computer is in two-way communication control with the spray head single chip microcomputer, reads data of the spray head FPGA in a one-way mode, sends spray printing data to the spray head FPGA in a one-way mode, and sends control data to the spray head FPGA in aone-way mode. The technical scheme of the invention has the technical effect of high-speed communication between the ARM and the FPGA.

Description

technical field [0001] The invention relates to the technical field of inkjet printers, in particular to a high-speed communication method based on a high-resolution inkjet printer ARM and FPGA. Background technique [0002] Compared with the traditional CIJ inkjet printer, the high-resolution inkjet printer has a clearer printing effect and faster printing speed. Therefore, the high-resolution inkjet printer needs a larger amount of communication data, and requires faster data transmission. [0003] At present, the communication control schemes between the upper computer and the lower computer of the inkjet printer include: high-speed CPU, DSP (digital signal processor, digital signal processor), CPLD (Complex Programmable Logic Device, complex programmable logic device) and FPGA (Field-Programmable Gate Array, Field Programmable Gate Array), where the high-speed CPU and DSP control has the disadvantage of high cost, and because of its serial instruction characteristics, w...

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Problems solved by technology

[0003]At present, the communication control schemes between the upper computer and the lower computer of the inkjet printer include: high-speed CPU, DSP (digital signal processor, digital signal processor), CPLD (Complex Programmable Logic Device, complex programmable logic device) and FPGA (Field-Programmable Gate Array, Field Programmable Gate Array), in which the use of high-speed CPU and DSP control has the disadvantage of high cost, and due to its serial instruction characteristics, when the p

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