A Novel Approach for Displaying Data on LCD Directly from PC using FPGA
Neha R. Laddha1, A.P.Thakare2

1Ms. Neha R. Laddha, Digital Electronics, Sipna Coet, Amravati, India.
2Prof. A.P. Thakare, H.O.D. Electronics & Telecommunication Dept., Sipna Coet, Amravati, India.
Manuscript received on April 11, 2013. | Revised Manuscript Received on April 12, 2013. | Manuscript published on April 25, 2013. | PP: 106-110 | Volume-1, Issue-6, April 2013. | Retrieval Number: F0282041613/2013©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: In traditional microcontroller or micro processor based approach, every LCD display is associated with a static input. This input is static and cannot be changed by user easily as and when needed. Thus restricting the flexibility to user can have in updating the data. In this paper, we propose to design a prototype where we interface UART with LCD display through FPGA board so as to provide flexibility of data which is being displayed directly to LCD. The primary goal is to provide serial communication of keyboard character using USART hyper terminal and display it on HD44780 based LCD controller. This prototype can be further enhanced into single chip which is significance to SOC as ASIC. Thus, this design based Device can prove beneficial for future Consumer Electronics Market. In this design, for serial communication, multi UART with configurable baud rate is implemented. The multi UART and LCD driver are implemented with VHDL language and can be integrated into the FPGA to achieve compact, stable and reliable data transmission. The design has been simulated on ModelSim and implemented using Quartus II on Altera DE1 FPGA board.
Keywords: UART; Asynchronous serial communication; VHDL; Quartus II; ModelSim, Altera DE1 Cyclone II FPGA board.