Try this site.... http://www.diy-efi.org/diy_efi/members_projects.html Regards, Jim > any website where we could view this... > > -----Original Message----- > From: pic microcontroller discussion list > [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Walter Banks > Sent: Wednesday, May 26, 2004 7:35 AM > To: PICLIST@MITVMA.MIT.EDU > Subject: Re: [PIC]:EFI Controller > > > The days of firing the spark plug once in a while and changing the > mixture while monitoring engine temperature is gone. > > We have just released a C compiler for a peripheral processor that is > part of a multiprocessor controller used in automotive engine > controllers. The processor tools that we did was for the part that > talks directly to spark, injectors, intake and exhaust valving. > Increasing attention to fuel efficiency means that the engine > controllers are adjusting mixture in some cases every 3 microseconds > during intake with separate profiles per cylinder. > > The peripheral processor has two identical execution engines (One > application program, interesting software) a mac, 24 bit word, 4 timers > per pin (32 I/O pins) and a hardware real time executive. The hardware > is essentially a thread machine architecture. Each of these processors > can run multiple PID loops. > > To complete the engine control there is a host processor on the same > die that feeds setpoints and gets performance information to the > peripheral processors. > > The combination has the computing power of a good laptop. > > w.. > > > > > Andrew Warren wrote: >> >> Nikhil Praveen wrote: >> >> > does that mean PICs are unsuitable for this purpose? >> >> Probably, yeah. Ideally, you'd want a fast microprocessor with >> powerful timers, a large memory space accessible through an >> external address/data bus, analog inputs, maybe an analog output >> or two, etc. >> >> Motorola and Intel, among others, have micros that were >> specifically designed for automotive engine-management >> applications; you may have better luck with one of those than with >> a PIC. >> >> -Andy > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu > > ___________________________________ > Telecom disclaimer can be found at: > Http://www.telecomfiji.com.fj/disclaimer.htm > > ------------------------------------------------------------------------- > This e-mail message has been scanned and cleared by Trend Micro > InterScan > ------------------------------------------------------------------------- > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu