Arm9-based Show Control System

Nowadays, with the rapid development of information display technology, display control technology also makes great progress.Based on the research of the principle of LCD and LED display control technology, the LCD control circuit module design based on the ARM9 microprocessor was designed, and the LED control circuit module based on the FPGA co-processor was also designed.As for hardware circuit, according to the characteristics of the ARM9 microprocessor, the main interface circuit structure, and related peripheral devices of the ARM9 microprocessors were reasonably designed, including a systematic analysis of the power and reset circuit, crystal circuit, flash memory interface circuit, SDRAM memory interface circuit, serial interface circuit, JTAG interface circuit, LCD interface circuit, Ethernet interface circuit, superior performance LCD control module was successfully implemented. LED control circuit module based on the FPGA was designed according to LCD display control and data signals.As for software design, firstly, Bootloader, download and compiler of Linux operation system, and download and compiler of the system application program were analysed, then LED scanning control logic based on FPGA, finally, display control based on ARM9 was completed.