The Research On Master Controller Module Of Automotive Electronic Control System Development Equipment

In recent years,the rapid development of automobile industry provides a widerange of market applications for the development of automotive electronics,So it makesautomotive electronics market entered a period of rapid development.Currently,China’sauto electronics industry has achieved a rapid development and has begun to takeshape,Development of automotive electronics professional level has become animportant symbol of modern automotive technology level.However, the development oftraditional automotive electronic controllers mainly exists a number of disadvantageslike long development cycle, low reliability, high cost.To avoid these disadvantages,The paper puts forward a hardware and software co-developmen’s rapid developmentsystem of automotive electronic controlle（ralso referred to the development equipment）,Wherein the "fast", Mainly shows that it can shorten the development cycle of thesystem, and makes the development of products with reliability. This paper is part of thework of the rapid development system of automobile electronic controller. Thedevelopment system, including two parts-the hardware platform and software platform.Based on in-depth analysis of PCI bus’s bus specification, arbitration principles andtransmission principle, The paper analyzed that the functional modules (includescontroller module, memory module, and power module) of the development system’shardware platform, focusing on the main controller module’s study（hereinafter referredto as "master module"）.Firstly,introduced the hardware circuit and working principle of master controllermodule, in the analysis of its hardware circuit, details the TMS320LF2407A DSPmicrocontroller’s peripheral circuit design ideals of the main controller module. Andmaked hardware debugging and software design,the hardware debugging includingpower modules, crystal oscillator circuit, reset circuit, JTAG interface circuit and CANinterface circuit debugging, in the software design process, using integrateddevelopment environment CCS of DSP to achieve software design.Secondly, elaborated on the use of programmable logic device CPLD to achieve the logic control, timing matching and communication problem of DSP and PCI9054local bus. it is the heavy and difficult to this design. During the communication inTMS320LF2407A DSP and PCI9054local port, due to the processor’s timing andinterface of TMS320LF2407ADSP and the PCI9054is inconsistent. Therefore,it’s needCPLD（EPM3032ALC44-10N）to implement the processor’s timing conversion andlogic control.In the implementation process of communication, based onTMS320LF2407A DSP and PCI9054local side’s read and write timing analysis, usingCPLD development tools QuartusII, hardware description languages VerilogHDL andsimulation tools Modelsim to achieve logic function design and simulation.Finally, described the knowledgies of WDM technology and driver program, andelaborated on the use of development environment Visual C++, driver development kitDDK and driver development tools Windriver to develop the driver program for maincontroller board.