Design of Print Module Based on S3C2440 Processor

To the extended functions of printers,the print module design problem is discussed.By designing the hardware circuit and building the software development architecture,an embedded hardware and software developing platform is constucted based on ARM9 processor and embedded Linux.The print module is designed based on S3C processor.The print module uses extended USB interface to communicate with host computer,and serial port RS-232 to connect with the printer.The touch-screen is used to control the whole process.Based on that,the VMP01 PLUS portable printer is connected to the embedded system by serial port.The function of printing the coordinates system is extended by the design,and the printing result is good.