Data aquisition and emulation on same COM port

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Polux RSV
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Joined: Thu Jan 05, 2012 11:31 am

Data aquisition and emulation on same COM port

Post by Polux RSV »

I have an old ecu where the serial port connection allow for data acquisition and programmation. The protocol is very similar to the Marelli series, with bytes added for the internal eeprom programmation. These bytes are the address and data bits, but encrypted with a strange algorithm.
Is it possible to do this with a plugin? or any other method ?

Angelo
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Mangus
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Post by Mangus »

How is the ECU programmed? External hardware?
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Polux RSV
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Post by Polux RSV »

All the material is more than 20 years old, and was used on Cosworth F1 motors :D

The ecu is programmed with a special console containing a ZIF socket. This console read an eprom and send its contents (only maps, no firmware) to the ecu using this special serial line (62500bauds). At the same time, the console could display values on a LCD, RPM, TPS,CLT,...These values are comming also on the serial line. The protocol mix the console and programming at the same level.

This console could be connected to a PC with a second serial line, and a new eprom could be programmed with the editor software (DOS6.2)

But you could no directly read values and program the ECU by seting the console as a gateway.

What I want to do is setup Tunerpro as a console AND programmer, both functions using the same serial line. Console is already working, I used the lancia.adf example downloaded on the site.

Angelo
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Mangus
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Post by Mangus »

The programming side would almost certainly require writing a plug-in, which would require some programming experience.
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