Search found 9 matches
- Sat Nov 27, 2021 9:17 pm
- Forum: FreeEMS General
- Topic: USB comms
- Replies: 15
- Views: 62533
Re: USB comms
There have been instances of ground loops and other badness if the laptop is powered (not running on battery).
- Sat Feb 10, 2018 11:48 pm
- Forum: For Sale
- Topic: Jaguar 0.7-alpha kits For Sale
- Replies: 72
- Views: 618675
Re: Jaguar 0.7-alpha kits For Sale
What has changed in the 0.8 board?
- Sat Feb 10, 2018 7:11 pm
- Forum: For Sale
- Topic: Jaguar 0.7-alpha kits For Sale
- Replies: 72
- Views: 618675
Re: Jaguar 0.7-alpha kits For Sale
If I purchased a FreeEMS board it would need to be V8 compatible, so that leaves off the CoolEFI board.
I also may need a trans controller for this project if I proceed
It would be housed in a OEM case PNP style so I can switch back to OBD2 for emissions compliance testing. 04 Dakota w/Daimler V8
I also may need a trans controller for this project if I proceed
It would be housed in a OEM case PNP style so I can switch back to OBD2 for emissions compliance testing. 04 Dakota w/Daimler V8
- Thu Feb 08, 2018 9:14 pm
- Forum: For Sale
- Topic: Jaguar 0.7-alpha kits For Sale
- Replies: 72
- Views: 618675
Re: Jaguar 0.7-alpha kits For Sale
what is the status of new boards/kits?
- Thu Feb 08, 2018 8:39 pm
- Forum: FreeEMS Vehicles
- Topic: Neil's '97 LR D1 3.9 V8 (#42)
- Replies: 9
- Views: 45928
- Sun Apr 12, 2015 7:09 pm
- Forum: FreeEMS General
- Topic: USB comms
- Replies: 15
- Views: 62533
Re: USB comms
Noise hardening (interference rejection) is not a feature listed in any PC reviews. I'm not sure a "ToughBook" is still made or better shielded, besides economic considerations and sucky batteries. Will USB 3.0 have better noise rejection? Will it retain that rejection when a 2.0 device is...
- Sun Apr 12, 2015 6:26 pm
- Forum: FreeEMS General
- Topic: USB comms
- Replies: 15
- Views: 62533
Re: USB comms
"FreeEMS has a much higher data rate than MS products which use inefficient polling instead of back-to-back streaming. What this means is that it'll tax your communications and laptop CPU a bit more than M$ would." I wouldn't expect USB comms to pull down performance much "An ancient ...
- Sun Apr 12, 2015 6:04 pm
- Forum: FreeEMS General
- Topic: USB comms
- Replies: 15
- Views: 62533
Re: USB comms
Thanks Fred, yes ground looping was one issue when I had a laptop with a bad battery and tried to power from vehicle. How do I determine USB cable shielding quality? Braided, or spun? (spun is more flexible). I have had so much trouble with USB I have 6 or 8 different adapters that I juggle until on...
- Sun Apr 12, 2015 5:07 am
- Forum: FreeEMS General
- Topic: USB comms
- Replies: 15
- Views: 62533
USB comms
Coming from a MS background I have had some miserable experiences with noise interfering with USB. I have had to minimize USB cabling and use RS232 to eliminate lockups and other nasty's. I cant even use a USB mouse, must use bluetooth. Is this an Asus Eee PC 900 issue? Or will I see similar issues ...