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Do you mean the port scanner 1.4 or the port checker? You should not have to use the bootloader header for updating the firmware because the issue is only when TunerStudio reads the datalog over the serial port. The port scanner does not do that so it should just work. But if you cannot get the port...

Have you tried updating the firmware I posted in my previous post? That's the v0.1.5 firmware which is the latest and has the serial port bug fix. And that is for the DIYAutotune CAN-EGT. Your post is not clear what you have tried and what your actual setup is. The pictures don't give any informatio...

There has not been any new version of the firmware since my last post. So the same constraints apply.

Jean

The functions are correctly assigned in your list. I assume you need a switch for launch control so that would be a digital input. The accelerometer inputs are ADC inputs. And the GPS input uses a serial port. The logger board is no longer available because the GPS and the accelerometer used on the ...

The TIOx draws about 50mA of current so you should easily be able to use the 5V supply from the MS3Pro. But you will need to provide some sort of enclosure for the TIOx.

Jean

Looking good!

Yeah, the Spartan 2 OEM support is not in the firmware at this time but it is planned.

Jean

Pin 15 is another ground that you should also connect to the engine ground. And I'm not sure which pullup resistor you mean for the v1.0 board but there is no need for them in your case. And you are correct that you don't want to use Q1-4 and R1-4 when using logic coils. The rest is also correct. Jean

You're trying to emulate a car battery so that's why it should be 12V which is also a common power supply voltage. But you can use the entire normal range of a car battery or charging system. The ECU is more affected by this than the JimStim.

Jean

Yes that looks ok assuming you need a 12V square wave signal for the primary and secondary signals (looking at the 3 header shunts/jumpers). Please note that the 12V and ground you show are for powering the ECU from the JimStim and that you would need to power the JimStim from some sort of power sup...

I understand that I need to wire 12v and 5v to JimStim from ECU to screw terminals. How do I connect power and sensor grounds? I see the 3 pin header next to the DP37. That is just power ground (12v)? Or also sensor ground(5v)? There is no separate sensor ground but only a single ground plane. Abou...

Hi and welcome to the forum!

Jean

The diode type is not really critical but a couple of 1N4148 will be cheap and do the job.

Jean

Ok so from this it means that the output frequency will be 9/8 the turbo speed which should be doable without adding a divider circuit. And since you're just planning on using a few ADC inputs that also helps in keeping the CPU demands quite low. Since you're not planning on using other timer inputs...

Cam, The main potential issue with a turbo speed sensor is the high frequency of the signal. And the TIOx will be better able to handle a high frequency than the MS3 because you can control the timer parameters and because it is not controlling the engine at the same time. Do you have a link to some...

The timer value corresponds to the number of clock ticks between 2 pulses. The default settings on the TIOx is to use the 24MHz clock divided by 128 (prescale) which gives a 187500 Hz clock. The timer value is a 16-bit which means that the maximum (lowest speed) is 65535 which is equal to 0.34952 se...

Actually, you can do it in a roundabout way. I'm not sure if that was what you meant in your first post and I might have read it a bit too quickly. I don't know if you have an MS2 or MS3 but you can poll the data from the TIOx on your MS and then use id 27 (as you suggested) for the timer data (raw ...

I think there is some confusion over the CAN protocol. When you mention the group id, that is from the MS CAN broadcasting on the MS2 and MS3. The TinyIOx does not use CAN broadcasting but uses the MegaSquirt CAN protocol which is not the same and requires polling. It's the original CAN protocol use...

Hi and welcome to the forum!

Jean

Nice! Please post more pictures once you have your 3D printed enclosure. I'd also like to see what it looks like once it's in the car.

Jean

Neither have that option in their code at this time but it is long overdue. I'll try to have a fresh look at it to see if that could be done quickly.

Jean