Design of Multi-Function Keyboard Display Controller Based on FPGA

Abstract:

The multi-function keyboard display controller can complete lots of job, which contain direct keyboard, matrix keyboard, LED digital tube dynamic scanning. The controller including button identification, automatic continuous functions and LED digital tube display , flashing and controlling the decimal point. At the same time, the external interface of the controller using the routine UART interface, established a perfect communication protocol. So that we can realize the access keys and control the display of LED digital tube. The multi-function keyboard display controller not only can overcome the disadvantages that traditional microcontroller system take more of the I/O lines and system resource, but also can use the mainstream Field-Programmable Gate Array completes system functions.

• Periodical: Advanced Materials Research (Volumes 912-914)
• Pages: 968-971
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.912-914.968
• Online since: April 2014
• Authors: Zhen Lin Bai*, Zhi Yong Meng, Mei Yang
• Keywords: Digital Tube Display, FPGA, Keyboard, Serial Interface

References

[1] Wang Rongyang, Wu Guoqiang. Design of Matrix Keyboard Controller and Display Circuit Based on FPGA[J]. Journal of Huzhou Vocational and Technological College. No. 3. (2012).

[2] Zhang zhiwei, Zhao Feng. Design of LED Display Control System Based on FPGA[J]. Science Technology and Engineering. No. 3. Jan. (2013).

[3] Shi Bangli, Yang Yi. On Improvement in Design of Scanning Circuit for 4*4 Keyboard Basedon the FPGA[J]. Journal of Southwest China Normal University(Natural Science Edition). No. 3. (2013).