Logic Analyser arrived today. Very neat bit of kit. Thanks to those who contributed.
Now just need to learn how to use it.
Anyway I captured some data from just before you turn on ignition and then with ignition on for about 5 seconds. Engine not running. The normal signal is on BATTSC1 and an inverted signal on BATTSCI2 ditto the METSCI1 & 2 signals. SOC at 19 bars.
I can share this with other's which is nice you need to install the Logic software from here
http://www.saleae.com/downloads/logi...tup%20Beta.exe
It needs dot.net framework 3.5 as well.
Then you can download my captured data from here, open and fiddle about with it.
http://www.solarvan.co.uk/insight/St...9.logicsession
The data on Input 1 & 2 is the BCM to MCM link BATTSCI1 & 2
This seem to be alternating packets of data in the sample I obtained.
The data on Input 7 & 8 is the BCM to MCM to Dash Display link METSCI1 & 2
This repeats at wider intervals but looks consistent with some small variations.
I'll capture some more later. Please have a look at it and post your thoughts.
Here is a screen capture from the program, this is the first burst of data on the buses after switch on.
Ignore the data in the middle two lines that's a duplicate of the bottom ones. The numbers superimposed are what the program thinks the hex values are for the transmitted data. The shortest pulse is 106us which makes the baud rate? 10,400 poss. But as we don't know the structure, how many data bits, parity, stop, start etc that's still up for discussion.
www.solarvan.co.uk/insight/Data100309.jpg
If you download and install the logic software you can analyse the data with me. All help gratefully recieved.
