Real Time Display / Bench Testing

Discuss issues and tuning software like DTASWin, E-Race, MegaLogViewer(DTA), etc. Also post archive versions of firmware.
Tim
Posts: 81
Joined: Tue Sep 13, 2016 9:06 am
ECU Model: S80 Pro

Real Time Display / Bench Testing

Post by Tim »

I am trying to develop my own CAN dash display, and would like to be able to do the bulk of development sat at my desk rather than in the bucket seat of a car.

I notice that inside the "Real Time Display" form I am able to set values against a gauge. For example, I can grab the RPM needle and drag it to a set point.

If connected to the ECU via CAN, would the values being sent adjust as I set values inside Real Time Display.

Or, have the controls on that form simply not been set to read-only?
stevieturbo
Posts: 3577
Joined: Tue Aug 02, 2011 12:08 pm
ECU Model: No ECU
Location: Norn Iron

Re: Real Time Display / Bench Testing

Post by stevieturbo »

Unless you can make the ecu think the engine is running, then no what you're proposing will not work.

Likewise for any sensor readings.

You can buy various signal generators that might let you bench test such a thing though, whether they represent value for money though is another matter. But I think basic ones start around £150 and could produce various crank signals, as well as a range of resistance and 0-5v outputs etc
Alex DTA
Posts: 1622
Joined: Fri Feb 28, 2014 1:03 pm
ECU Model: S40 Pro
Distributor: DTA
Firmware Version: 79

Re: Real Time Display / Bench Testing

Post by Alex DTA »

Tim wrote:have the controls on that form simply not been set to read-only?
Is the answer
Tim
Posts: 81
Joined: Tue Sep 13, 2016 9:06 am
ECU Model: S80 Pro

Re: Real Time Display / Bench Testing

Post by Tim »

I thought my eureka moment might have been too good to be true. bum.

Any alternatives?
Alex DTA
Posts: 1622
Joined: Fri Feb 28, 2014 1:03 pm
ECU Model: S40 Pro
Distributor: DTA
Firmware Version: 79

Re: Real Time Display / Bench Testing

Post by Alex DTA »

The CAN bus will transmit even if the engine isn't running, so you can test that you're receiving values anyway.
You can also change the default values in General Engine Settings to test those 4 values.
Connect a potentiometer to any analogue input.
RPM is difficult.
Tim
Posts: 81
Joined: Tue Sep 13, 2016 9:06 am
ECU Model: S80 Pro

Re: Real Time Display / Bench Testing

Post by Tim »

Thanks Alex.

Understood about RPM, that's not the end of the world, but seeing some values change is going to be handy, and that sounds easily doable.

I'll grab a few pots and make a little test box, thanks.

I'm going to power the ECU from an adjustable bench power supply, anything to watch out for here?
Alex DTA
Posts: 1622
Joined: Fri Feb 28, 2014 1:03 pm
ECU Model: S40 Pro
Distributor: DTA
Firmware Version: 79

Re: Real Time Display / Bench Testing

Post by Alex DTA »

If you haven't bought one yet, a current limiting version is a VERY good idea.
Ask me how I know....
Tim
Posts: 81
Joined: Tue Sep 13, 2016 9:06 am
ECU Model: S80 Pro

Re: Real Time Display / Bench Testing

Post by Tim »

Ha, oh dear.

I was going to grab an entry level 30v/5 amp variable one, I assume that'll be enough?
Alex DTA
Posts: 1622
Joined: Fri Feb 28, 2014 1:03 pm
ECU Model: S40 Pro
Distributor: DTA
Firmware Version: 79

Re: Real Time Display / Bench Testing

Post by Alex DTA »

Plenty
stevieturbo
Posts: 3577
Joined: Tue Aug 02, 2011 12:08 pm
ECU Model: No ECU
Location: Norn Iron

Re: Real Time Display / Bench Testing

Post by stevieturbo »

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