This paper presents an FPGA-based LED display control system design method. The system is composed of an FPGA chip and an LED display module and interface drive circuits. The system uses EP2C35F672C8 FPGA chip with an embedded Nios Ⅱ soft-core microprocessor. The communication between the PC host computer and FPGA core board uses the RS232 serial and JTAG download cable. Through the display driver module
the output of the FPGA core board lit LED dot matrix display driver module. The MAX232 chip is used for serial communication interface circuit and four 74HC595 shift register are used for the output driver circuit. Compared with the traditional LED display system with SCM control