MembersPage/BillHart (2006-01-16 06:33:27)

Open Issues ToDo

1) Does the V3.3 firmware calculate base injector pulse width using VE and Required Fuel only or does it factor in A/F values from the A/F table? Put differently, is the A/F table only for autotune or is it also used for open loop injector pulse width calculations? Is there a detailed explanation of exactly how the injector pulse width is calculated apart from trying to decipher the C code?

2) Can you advise if anyone has purchased the Atmel Jtag adaptor? Is there a header on the V3.3 board that supports a direct plug in of the Atmel Jtag adaptor?

Question- Please advise on what is connected to the flying green jacketed wire protruding from the front cover with white and green wires.

A: Exhaust Temp sensor I will look to Wiki fof hookup info

Projects Underway

MembersPage/BillHart/WinMobileLogger Win Mobile platform to Fat32 memory card logger. Looking for SIPR examples, if any, to ease the adding V3.3 query to Win Mobile code.

I would like to better understand the inside of what I have worked with for so many years from the "outside". See http://www.lolachampcar.com for more info.

Do you have a particular project engine in mind ? Yes, sub-set of V3.3 for highly targeted one to four cylinder 4-stroke fuel and ignition.

We usually call "reverse an existing ignition advance curve" as "alien" logging. Searching for alien on SiteIndex, I found OnlineCourse/AlienIgnitionLogging. Secondary_trigger can still (in recent firmwares) be configured for alien measurements (except for 5cyl), but the alien variables seem to have been ripped from comm.c. Even if they show up on LCD, only useful if they are sent to the PC (like MegaTune) for analysis. Fortunately not difficult to get comm.c send the variables related to alien measurements.

I have read a bit about the status of logging. There is discussion of building hardware to support logging. There are also those who feel PDAs are a better path. I would like to weigh in on the PDA side as there is no value add to recreating the (logger hardware) wheel. A small portion of the hardware data logger work could be devoted to PDA code to generate a log storage device. FAT, touch interface, serial, memory card slot and services are already done. Can someone advise on the current status of group thinking? Is someone working on PDA? The only link I found was a dead end.

I recommend to comment (continue discussion) on the relevant page, not split even more. In short:


I am working with a 12-1 wheel and wanted to clarify a few points.