Hi,
I've tried reading all the info and searching for vb921 installation information.
i've got a v3 mainboard and wish to run 2 coils in wasted spark format. This requires 2 vb921 chips. What i'm interested in, is solely how to install them on the board. I've gone over the information available, including a search.
What jumpers do i need to install, which additional wires am i required to run. Is there a good earth point to utilise? I guess i have to run the wire directly into the unused pin on the db37 (for the second vb921).
VB921 confusion
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Hi Doc... did you read this?
http://megasquirt.sourceforge.net/extra ... wheel.html
http://megasquirt.sourceforge.net/extra ... wheel.html
Hi, i'm beginning to make sense of it all.
Is the ground plane on the proto area sufficient for the vb921?
The bit which confuses me is the pull up resistor used on the diagrams halfway down the page. Its just not quite clear enough in my own head yet. Could anyone post pictures of their built megasquirt?
Cheers
Sam
p.s. sorry for seeming so dim.
Is the ground plane on the proto area sufficient for the vb921?
The bit which confuses me is the pull up resistor used on the diagrams halfway down the page. Its just not quite clear enough in my own head yet. Could anyone post pictures of their built megasquirt?
Cheers
Sam
p.s. sorry for seeming so dim.
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I replaced R43 with a jumper and used that as the ground for the second VB921.
James
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
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My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".