VETuner currently runs this sort of sequence
graph TD; A[Write To ECU] --> B[Wait]; B --> C[Read Data From ECU]; C --> D[Process ECU Data]; D --> A;
The Wait and Read steps account for 93% of the cycle time during which VETuner is twiddling it’s metaphorical thumbs. However this means we can do the processing bit for ‘free’
graph TD; A[Write To ECU] --> B[Process ECU Data from previous read]; B --> C[Wait]; C --> D[Read Data From ECU]; D --> A;
This strictly speaking means that the UI will lag one read behind reality, but as all the data is timestamped it will have no impact on logs or analysis and it has the benefit of about a 10% increase in the read rate because there is no pause between the read and the follow write.
Over the past month or so, I’ve resurrected my old Amiga 1200. I added a 2Gb SD card internally and set up a serial link to my PC.
I needed software, so I downloaded an archive of 1000(ish) Fred Fish disks. Fred Fish was someone who published floppy disks with curated pieces of software and they were a gold mine. I bought a few over my years at Uni, and the one with SB-Prolog got me through my second year resits.
Gah! Google!
I wrote some simple javascript code that a friend was interested in. It’s on my private Forgejo instance so I said “no worries, I’ll email it to you”
So I packaged it up as a tar.gz file and emailed it to his gmail email address.
Oh Noes! says Google! Hackers! Evil Code! Smuggling in compressed files! Your email shall be bounced!
That bounce then got treated as spam by Thunderbird and so I never saw it. It was only when I was about to flush my spam that I noticed it.
I forgot to update that my car passed its MOT. Emissions still need some work, they could be better. However I have VETuner to help me out with that :)
VETuner now supports connecting to a second ECU over CANBus. Typically this is a Microsquirt running the Trans firmware to control an automatic gearbox. As I don’t have any of that hardware, development was somewhat problematic.
A very stoic user called Jochen put up with me pushing out builds for him to test and send me log files so I could rummage through the carnage. Ultimately, I wrote a simulator with enough fidelity to convince Tuner Studio that it was talking to a MS3/Trans combo, and then worked VETuner against that. This should put me in good stead for other odd comms options when they crop up in the future.