There are two kinds of serial interfaces in most single chip microcomputers. SPI and
UART/USP.

SPI is the simpler of the two but it is unsupported in tablets, cell phones and PC's
of all kinds. The so-called "terminal" programs that run in these devices requires
data in ASCII form. There are three different "terminal" programs for my wife's Asus
Transformer tablet alone. Look it up. Unfortunately, I think, Tracy is using SPI to
send data to his EM-2. To get that data into a PC I think would require another
single chipper to reformat the data to ASCII and send it out a RS232 or USB interface.

Now, what I am doing in this EFI design  is converting the binary engine parameter
data to ASCII format in real time and sending that out the RS232/USB.

Once it is in the PC and saved to a hard disk file it can be read directly as a
spread sheet csv text file. That is a human readable file where the numbers are
separated by commas. AKA "comma delimited file". It then becomes a piece of cake to
write a QB or VB program that displays the file in some sort of a graphic form. Or
one can load it into a spread sheet and let the spread sheet plot the data. The late
great Mistral had all that worked out in their EFI system.

Here is an example of the data from the Mistral Turbo-Piper crash.
Be careful with those cheap car mufflers on rotary powered airplane.
If you have one on there now inspect it with a bore scope (home depot) on a regular
basis.

Paul Lamar

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