Search found 1696 matches

by Bernard Fife
Mon Oct 13, 2008 9:20 am
Forum: GPIO Assembly
Topic: V2.00 board errata
Replies: 13
Views: 20397

Re: V2.00 board errata

One way around the board length issue is to cut the end plate around the Ampseal flange. That means the connector is not weather-proof anyore, of course...
by Bernard Fife
Mon Oct 13, 2008 9:14 am
Forum: GPIO Assembly
Topic: V2.00 board errata
Replies: 13
Views: 20397

Re: V2.00 board errata

All, It looks like the components that are too close to the slots are primarily those not used in building the MegaShift hardware (it's the EGT AD595 IC pins that are the closest), so that helps, it *could* go in the bottom slot. However, there's another problem - the board was made 6.00" x 4.0...
by Bernard Fife
Mon Oct 13, 2008 7:52 am
Forum: GPIO Assembly
Topic: V2.00 board errata
Replies: 13
Views: 20397

Re: V2.00 board errata

All, Another thing to be aware of: in the re-layout of the board for production (as V2.00), some via and component locations were moved closer to the 'long' edges of the board. Because the bottom of the bottom slot of the EAS-400 is wider than the other slots, this means the GPIO PCB can no longer g...
by Bernard Fife
Fri Oct 10, 2008 7:04 am
Forum: GPIO Assembly
Topic: V2.00 board errata
Replies: 13
Views: 20397

Re: V2.00 board errata

Not exactly an error, but something to be aware of, the EGT circuits are arranged as: EGT2 -- EGT3 -- EGT4 -- EGT1 also, the GPO circuits run: GPO1 -- GPO3 -- GPO2 -- GPO4 from left to right on the board. The component numbering matches the schematics, etc.., but people should not assume they are 1-...
by Bernard Fife
Fri Oct 10, 2008 6:55 am
Forum: MegaShift Transmission Application
Topic: 4L60E 4WD application info request
Replies: 14
Views: 25376

Re: 4L60E 4WD application info request

Joe,

Thanks, that's perfect! I will add the 2WD/4WD switch to the code (likely on PE1/GPI1/Amp5).

Lance.
by Bernard Fife
Thu Oct 09, 2008 7:09 pm
Forum: MegaShift Transmission Application
Topic: 4L60E 4WD application info request
Replies: 14
Views: 25376

Re: 4L60E 4WD application info request

Thanks Joe!

Anyone happen to know if this signal to the ECU is 5V or 12V, or does the ECU supply the pull-up and it is grounded (this matters for how to build the circuit), and whether 'high' or 'low' indicates 4WD (this matters for setting up the defaults)?

Lance.
by Bernard Fife
Wed Oct 08, 2008 1:46 pm
Forum: GPIO Assembly
Topic: V2.00 board errata
Replies: 13
Views: 20397

V2.00 board errata

A quick note for those getting test production V2.00 GPIO boards: There is a small error in the silkscreen labeling at the 25x2 header (that connects the processor pins to the circuits). The processor side labels are correct, only the circuit side has errors. The affected circuits are: pin/port -- l...
by Bernard Fife
Tue Oct 07, 2008 4:17 pm
Forum: MegaShift Transmission Application
Topic: Ford Auto trans details
Replies: 21
Views: 34316

Re: Ford Auto trans details

DMX, Daniel; Okay, I have the voltage based manual shift lever detection in the code now (for Ford, etc.). If using the Ford scheme, the other two inputs formerly assigned to the shift lever detection (for GM) can be used for general voltage signal logging (they are in the gauges and datalog in the ...
by Bernard Fife
Mon Oct 06, 2008 11:40 am
Forum: MegaShift Transmission Application
Topic: Ford Auto trans details
Replies: 21
Views: 34316

Re: Ford Auto trans details

All, A question (I have owned a lot of older Ford's, but the most recent was built by Mazda and has a manual trans): I see the manual gear lever positions for P-R-N-D-2-1. Is D for both 3rd and 4th gear? Then 2 and 1 manually select second/first or first gear? Is a bit of a silly question, but I'm w...
by Bernard Fife
Fri Oct 03, 2008 7:15 am
Forum: GPIO Assembly
Topic: 7805 reg and CAN wiring.
Replies: 1
Views: 6186

Re: 7805 reg and CAN wiring.

Daniel, The 7805 *should* be okay. Even though it not a low drop out regulator, the trans hardware doesn't do much while cranking anyhow (presumably the cranking is with the shift lever in neutral/park). I use twisted pairs for the CAN wiring (20 or 22 gauge, I don't remember exactly) - I just twist...