The Test Of Cellphone Display Module Based On PCI Bus

With the development of computer technology the�'件instrument based on computer applies to engineering, scientific research, nation defence and medical treatment more and more. Especially the development of PCI bus and graphical interfaces improves the performance and convenient of using of the�'件instrument greatly.And PCT common interface IC supports the PCI protocol well. The convenient interfaces reduce the workload of PCI board designers. The designers only need to focus on thinking timing logic, easier local bus and writing software to finish designing, then the application of PCI is more and more comprehensive.Now, PCI also has outstanding use in a lot of industrial fields. Especially in recent years, along with prosperous, more and more manufacturer mobile telephones and the unceasing development of the market of mobile telephone, show the manufacturer domestic prominent emergence of modular, but the most manufacturers usually use 51 single slices of machine when showing the detection of modular, though this kind of method produce simple easy realization, however still have a lot of deficiency. For example, the speed that shows can not realize animation slowly to show; The space of store is less , can not carry out diversified demonstration and so on. First this the unceasing development along with computer technology, the CPU traversal speed of personal computer the speed of unceasing raising and transmission bus line also when rising , and computer the space of hard disc is cannot set bounds , and then make show with the PCI interface and mobile telephone of bus line that modular carries out communication, detection becomes possible.Paper is studied from the two aspects of hardware and driver for showing thedetection of modular based on the PCI control mobile telephone of bus line , and has carried out the design of material object. The basically structural and basic design method of having discussed PCI bus line in paper has introduced in detail the key device that blocks based on the PCI control of bus line, PCI interface control chip PCI9052. This paper uses combination flat and the PASS-THRU passageway of PCI9052, outside FIFO completes the transmission for data. At the same time, also discuss the aspects such as CPLD sequential logic circuit design , and have been happened to use may programming logic device the VHDL original program or graph that carries out sequential logic design. Have elaborated the PCB design for that the PCI control of bus line blocks and the development of driver VxD and programming method, have introduced finally the application program compiled with VC+ +. Since passing through the PASS-THRU passageway of PCI bus line eventually, showing the control chip S6B33B2 communication of modular with mobile telephone realize to show.Through actual test, this PCI control card is completed smoothly into the functions such as digital quantity input output, simulated quantity output, timing pulse signal and the data buffer of FIFO , and shows with mobile telephone that modular communication is successful , has shown that detection data has reached expected design effect.Paper is from hardware start with , in the first chapter of with Chapter 2 has introduced principle as well as the advantage of PCI bus line with in actual application PCI bus line transmission process and disposition space. Chapter 3, the design of how detailed introduction carries out hardware according to the program in paper. Since PASS-THRU passageway is the simple passageway of PCI9052 and PCI connection, PCI bus line and additional logic and the agreement of shanking hands with corresponding use may be directly used , data delivers speed only get the extra interfaceand performance that is confined to PCI main equipment the speed in relevant logic, so use PASS-THRU show modular for mobile telephone to carry out high speed data transmission is to be necessary very much. And when having still elaborated the choice of PCI9052 as well as NV memory and the realization of its disposition space in detail in chapter. When Chapter 4 has described according to software design. Because of Windows series operating system for guarantee systematic safety, stability and transplantability, as applying program to visit hardware resource is restricted , need to draw up device driver therefore to realize the program of personal computer the visit for PCI equipment, drive software. Drive software compile is to use Windriver to develop tool , Windriver tool has offered the method of visiting hardware from user layer , and may be developed using the common software platform of Visual C+ +, support I/O, DMA suspends handling, have powerful function. Application program is to, with the INF files of the generation of driver that Windriver compiles for foundation, use the upper levels of Visual C+ + who develop tool and go on to directly face the software development of user, the major function of its realization is to show for mobile telephone that the drive of modular is designed ( and may the monitoring of real time change the condition that software drives , the influence that shows modular for mobile telephone) , shows picture and detection frame, and may establish the in order and time etc. that show.There are many functions that PCI bus line may realize , in this paper, have been concerned with the part in which only , need to still continue to excavate in practice in the future.