[Diy_efi] J1850 PWM Info Request

[steve ravet]

Rick Richard wrote:
> 
> I know someone on this list as either the SAE J1850 standard or the SAE
> HS-3000 book.  I'd like to implement the J1850 PWM protocol that Ford uses,
> but I can't find the protocol specs online, the books are expensive, and the
> custom chips are closed-source.

Well, I spoke before I finished recalling.  J1850 does describe the
physical layer for both GM (VPW) and Ford (PWM).  There's a copy of
J1850 on the gmecm page as described previously.

--steve

-- 
Steve Ravet
steve.ravet at arm.com
ARM,Inc.
www.arm.com

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