Backup / Reverse light output from Mshift?
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- Posts: 34
- Joined: Thu Mar 08, 2012 9:00 am
Backup / Reverse light output from Mshift?
Philip
'80 Jaguar XJS 5.3L V12 = MS-2
'74 Jensen Interceptor Mk3 440 V8 = MS-2 + GPIO (GM 4L60e)
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- Posts: 1696
- Joined: Fri Apr 04, 2008 1:28 pm
Re: Backup / Reverse light output from Mshift?
You *should* be able use the 'current gear' mode for the spare ports. You would set the conditions all to "no condition", except for the "gear threshold", which you would set to "equal" -1.
However, I just tried this on my bench and it doesn't work. There are a few issues. First, the INI won't accept negative values for the gear, so that will need an adjustment. But even when non-negative gears are selected the PWM% doesn't appear to respond properly, so that needs fixing too.
I'll look in the code and post back here when I have a tentative solution.
Lance.
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- Posts: 1696
- Joined: Fri Apr 04, 2008 1:28 pm
Re: Backup / Reverse light output from Mshift?
Actually, thinking about this just a bit more, I realize the easiest way to do this is to make one of the unused spare ports a "shift solenoid". Then have that output "off" in all gears except reverse where it should be "ON". Set the PWM% table for the spare port so that it is filled with all 100% (this will be the "ON" PWM percentage, and it will vary otherwise).
Lance.
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- Posts: 34
- Joined: Thu Mar 08, 2012 9:00 am
Re: Backup / Reverse light output from Mshift?
Excellent!! I've just come to the realisation today that I've been burnt (quite literally) by a local product. My gut feel was to go with GPIO based on all my MS experience but the price is now 3 times more than the local product, compliments of our currency which is now going "Zimbabwe" on us.Lance wrote:Phil,
Actually, thinking about this just a bit more, I realize the easiest way to do this is to make one of the unused spare ports a "shift solenoid". Then have that output "off" in all gears except reverse where it should be "ON". Set the PWM% table for the spare port so that it is filled with all 100% (this will be the "ON" PWM percentage, and it will vary otherwise).
Lance.
Philip
'80 Jaguar XJS 5.3L V12 = MS-2
'74 Jensen Interceptor Mk3 440 V8 = MS-2 + GPIO (GM 4L60e)
-
- Posts: 34
- Joined: Thu Mar 08, 2012 9:00 am
Re: Backup / Reverse light output from Mshift?
Philip
'80 Jaguar XJS 5.3L V12 = MS-2
'74 Jensen Interceptor Mk3 440 V8 = MS-2 + GPIO (GM 4L60e)