Research And Design Of Console Human-machine Interface Based On ARM

Abstract:With the rapid development of science and technology, the digitalization and networking of broadcast and television industry have received much attention.Networking digital audio mixing console,the combination of embedded technology and network technology,represents the future direction of the development of the audio mixing console. At this point, it is the most important and urgent requirement for actual project work is that configure an excellent,friendly graphical user interface for digital audio mixer console system.In this way,products and users can more quickly to communicate.Through analyzing the research situation of embedded system and human-machine interface,this article come up with the product’s functional and performance requirements, and design the intelligent human-machine interface system which is based on Cortex-A8. On the basis of this scheme, the whole system is designed and the systematic frame structure is proposed.The HMI system use TI AM3359microprocessor as the control core,use embedded Linux, and use the Qt/Embedded to design application. In terms of hardware design,the article mainly introduces the circuit about power circuit, Ethernet interface, LCD display circuit, and AM3359microcontrollers based on Cortex-A8core. And in terms of software design, according to the hardware environment and functional requirements of HMI system, the Linux embedded OS platform of HMI is built by means of drive transplantation and kernel customization.And based on the OS platform, each interface including the main interface, parameter setting and curve drawing interface uses Qt/Embedded to designTo verity the software performance of HMI OS platform and application program, a series of tests are processed. By analyzing the test results, the HMI system can meet the design requirement. So the real-time and stability performance of the HMI system software can be sonfirmed.