| The firmware is a software function of hardware. SupNIR-5500fuel qualityanalyzer on the main board most of the firmware are EEPROM, such as DSP, FPGAand multiplexing device chip. It is a kind of electrically erasable, programmableread-only memory power lost after data is not lost memory chips. Usually use morethan the average voltage role to erase and heavy write programs.The firmware updating refers to the portable instrument embedded firmwareupdates. It can improve the function of instrument, enhance the stability of theinstrument and repair machine instrument vulnerabilities. Upgraded firmware actuallyuses the new firmware procedures to rewrite flash. The firmware determines SupNIR-5500fuel quality analyzer’s function and performance. From this perspective,SupNIR-5500fuel quality analyzer on the main board firmware and its hardwarewith almost the same position, while in some extent firmware may a few moreimportant.SupNIR-5500fuel quality analyzer motherboard upgrade file basically has twokinds. One kind is. RPD format (byte stored), another kind is. S19format (characterform storage). The structure and analysis of two upgrade file mean the schematicsdetailing.Upgrade data is through RS232interface or transmission. RS232interface is aserial port (computer case in the rear of the nine core socket). The bus network nodesof information, CAN be divided into different priority based on priority over the buswith a visit non destructive based on priority by bit arbitration mechanism CAN meetdifferent real-time demand, but CAN have topped1Mbps bus transmission rate,realized the high bus utilization. The firmware upgrade has two kinds of ways. A local upgrade, local upgrade is asimple upgrades, can pass PC to upgrade file into lower level computer again into thefirmware, also can directly plus electric rewriting. Another kind is remote upgrades,remote upgrade is through CAN realize remote upgrade turn Ethernet datatransmission. Mainly by the PC realization, again data inputed into lower levelcomputer upgrading instrument to completes the upgrade.SupNIR-5500Fuel Quality Analyzer is green detection equipment based onnear-infrared spectroscopy technology. For getting better performance, sometimes wewill upgrade the firmware of equipment. In the past, the upgrading of firmware is avery time-consuming and laborious thing. In order to improve the upgradingprocedure, the SupNIR-5500Fuel Quality Analyzer firmware upgrading software wasdesigned.This paper is made up of five chapters, mainly including outlined designing,detailed designing and coding. In the outlined designing, the upgradingcommunication protocols of DSP, multiplexer and FPGA are the core of theframework. Accordance to the three Communication protocols, the main frame ofupgrade modules is proposed. In order to meet customer’s demands, three kinds ofapplication schemes are provided, aiming at direct communication of COM, directcommunication of CAN and indirect communication of CAN. Various class diagramsare given in the detailed, as well as the relationship between them, and theimplementations of their member functions are also described in detail. |
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