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?
Real Time Display / Bench Testing
-
- Posts: 3588
- Joined: Tue Aug 02, 2011 12:08 pm
- ECU Model: No ECU
- Location: Norn Iron
Re: Real Time Display / Bench Testing
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
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
-
- Posts: 1623
- Joined: Fri Feb 28, 2014 1:03 pm
- ECU Model: S40 Pro
- Distributor: DTA
- Firmware Version: 79
Re: Real Time Display / Bench Testing
Is the answerTim wrote:have the controls on that form simply not been set to read-only?
Re: Real Time Display / Bench Testing
I thought my eureka moment might have been too good to be true. bum.
Any alternatives?
Any alternatives?
-
- Posts: 1623
- Joined: Fri Feb 28, 2014 1:03 pm
- ECU Model: S40 Pro
- Distributor: DTA
- Firmware Version: 79
Re: Real Time Display / Bench Testing
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.
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.
Re: Real Time Display / Bench Testing
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?
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?
-
- Posts: 1623
- Joined: Fri Feb 28, 2014 1:03 pm
- ECU Model: S40 Pro
- Distributor: DTA
- Firmware Version: 79
Re: Real Time Display / Bench Testing
If you haven't bought one yet, a current limiting version is a VERY good idea.
Ask me how I know....
Ask me how I know....
Re: Real Time Display / Bench Testing
Ha, oh dear.
I was going to grab an entry level 30v/5 amp variable one, I assume that'll be enough?
I was going to grab an entry level 30v/5 amp variable one, I assume that'll be enough?
-
- Posts: 3588
- Joined: Tue Aug 02, 2011 12:08 pm
- ECU Model: No ECU
- Location: Norn Iron
Re: Real Time Display / Bench Testing
Signal generators including crank signals for rpm
http://www.ebay.co.uk/itm/251202808974? ... rmvSB=true
https://www.ebay.co.uk/itm/Automotive-S ... 2855951231?
( clean fortune )
http://www.turbofast.com.au/AutoSim/autosim_002.htm
http://www.ebay.co.uk/itm/251202808974? ... rmvSB=true
https://www.ebay.co.uk/itm/Automotive-S ... 2855951231?
( clean fortune )
http://www.turbofast.com.au/AutoSim/autosim_002.htm