Designtion Of Interface Library Of Embedded Application System And System Of Automobile Engine Signals

The function interface library of embedded operating system,which becomes one fraction of the operating system ,is mainly to provide application program with a system function library .Depending on the library ,users can operate the sources of the hardware more easily. The interface library mainly contains two part of compositions, which are drive function of MPC555 hardware platform and particular algorithm interface library aiming at the autocar development realm. The drive interface library ,as the bridge between the programer and the hardware, includes QADC drive, I/ O drive and interrupt drive. By using the library, programer can operate hardware conveniently, and complete all the operations on hardware platform. The algorithm library includes 2D/3D table look-ups, smooth filtering algorithm,processing of Atm pressure, battery voltage, boost pressure,boost tempture, coolant tempture,Fuel tempture, oil pressure, oil tempture and accelerator pedal. The algorithm library is composed of typical algorithm in the development of autocar electricity subprogram. Programer can conveniently call of algorithm function, avoiding formerly repeated programming. For more conveniently debugging system, we developped one whole testing platform including the unit of analog signal, cycle semaphore, switch and accelerator pedal. Each uint communites through the USB_CAN uint which converts the singles from CAN to USB .The software of PC is...