Abstract

A field-programmable gate array (FPGA) is an integrated circuit. It is known as System on programmable chip (SOPC) The FPGA configuration is generally specified using block diagramme representation and “VHDL”. Quartus-II can be interface with Nios-ii software tool. In that, “C-Programming” can be used for Modbus Communications, In Nios-II, with use of UART, CRC, function codes, timer and Frame receiving, timer application, data can be acquire from RS-232 Communications. Using “C-programming”, Data (i.e.-temperature, voltage, Current, Killowatt etc.) can be transferred to connected computer from modbus communication protocol. It suggests a potential solution for FPGA based Data Acquisition System. It proposes advanced method for data acquisition as part of good communication solution for different protocols.

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