Lazy today, here are the latest shots:
No further progress today, this is all from the weekend.
Fred.
My Personal 0.6-alpha Build
Re: My Personal 0.6-alpha Build
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Re: My Personal 0.6-alpha Build
Box screwed together! Still missing one connector, though. And has a small/strange problem. Testing completed thus far:
Outputs:
Fred.
Outputs:
- 4 ignition outputs function correctly
- CEL output functions correctly
- 4 fuel FET outputs
- FP output HSD and LSD configs
- PWM1 pin HSD and LSD configs
- Fan output on K4 (use newly working CHT to test this)
- The LSD output on PWM3
- MAP/AAP are both closeish and move appropriately with a suck on the hose
- IAT can be shorted to 7.5V and rails its temperature
- TPS can be shorted to 7.5V and ground and rails its output
- Spare (MAF) works
- Spare (MAT) works
- BRV works fine
- Load switch works fine
- EGO works fine both to ground and 7.5V
- CHT shows a vdiv behaviour with a 1k attached BUT, no change in value, and if shorted to ground, resets the CPU and holds the CPU in a dead state :-(
- RPM0 Hall
- RPM0 VR
- RPM1 Hall
- RPM1 VR
- Everything once cracking case to fix CHT issue and putting it back together again.
Fred.
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n00bs, do NOT PM or email tech questions! Use the forum!
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Re: My Personal 0.6-alpha Build
Box unscrewed, extensive testing of CHT input performed, heavy Jaguar review done, changes suggested by me, and performed by Andy, 10 wires replaced with appropriate ones for reliability reasons, box rescrewed, and tightened up properly, with (some) confidence.Fred wrote:Box screwed together! Still missing one connector, though. And has a small/strange problem.
This turns out to be a design flaw in the 0.6 and earlier boards. 0.7 should have this remedied. I started reviewing it, but didn't complete yet. Perhaps it can be released tomorrow if I pull finger and complete my review of the changes.Fred wrote:
- CHT shows a vdiv behaviour with a 1k attached BUT, no change in value, and if shorted to ground, resets the CPU and holds the CPU in a dead state :-(
Also I lied:
- The value does change, but emstudio takes a while to show it due to resync of comms.
- The CPU does not stay dead, I fooled myself in this respect.
- CHT has 1.0uF and IAT only has 0.22uF hence no issue there. Topology thoroughly reviewed for both.
Obligatory pictures:
Dodgy wires replaced:
Nearly ready to go:
Haircut given to input wires:
Fred.
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Re: My Personal 0.6-alpha Build
Finished and documented! Time to install! :-D
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Re: My Personal 0.6-alpha Build
The above document lives in the glovebox and has been valuable :-D
Things to do:
1) Make high side output work via adding open collector buffer to its input, currently it's always on...
2) Add bluetooth serial via open collector buffers so I don't have a cable in the passenger footwell (all of my laptops have bt)
http://octopart.com/parts/category--log ... 15&sc=4273
Maybe this: http://www.jaycar.co.nz/productView.asp?ID=ZS5807
This board is daily driving 7 days a week and reliable so far! :-)
Fred.
Things to do:
1) Make high side output work via adding open collector buffer to its input, currently it's always on...
2) Add bluetooth serial via open collector buffers so I don't have a cable in the passenger footwell (all of my laptops have bt)
http://octopart.com/parts/category--log ... 15&sc=4273
Maybe this: http://www.jaycar.co.nz/productView.asp?ID=ZS5807
This board is daily driving 7 days a week and reliable so far! :-)
Fred.
DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!
Re: My Personal 0.6-alpha Build
Also need to replace a highly suspect PLL cap with the correct value, assuming it's wrong. http://stuff.fredcooke.com/jaguar.with. ... 114949.jpg this seems like it's the same as what I have in front of me in a bag, though.
Edit, in less than 15 minutes, after not using any for 7 years or so, I found 3 different caps with the correct value! :-D
https://twitter.com/FredCookeNZ/status/ ... 3446546432
Edit, in less than 15 minutes, after not using any for 7 years or so, I found 3 different caps with the correct value! :-D
https://twitter.com/FredCookeNZ/status/ ... 3446546432
DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!
Re: My Personal 0.6-alpha Build
Bump for ease of finding the diagram above... lame, I know. Sorry.
DIYEFI.org - where Open Source means Open Source, and Free means Freedom
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FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!