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 Post subject: NanoSkwert hardware
PostPosted: Sun Oct 05, 2014 6:09 am 
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Our NanoSkwert is based on our ManTrak GPS unit using a Deutsch ME housing and measures 135x90x35, we are going to replace the current s12x ManTrak mcu with the 6934 to keep the costs down and simplify things for us

see second pic below

This is only a few mm larger the Microsquirt V3 but definitely thinner which should be good for bikes and similar space restrictive installs. It will also quite happily survive the elements in the sealed case.

The board itself is fairly basic and forms a core for most of the intended applications. It is also designed to support daughter cards for prototyping or expansion as our ManTrak unit has several different cards for various add-ons (WiFi - Satellite Data - etc.). this should happily provide an Arduino like base for tinkering and those offbeat applications

there will be two connector options using the one base board

#1. single 12 pin
12v0 B+ , CLT , MAP , ADC1 , VR+in (crank), Injector1 , o2 Wideband in , Out1 (injector capable) , Out2 (injector capable) , 5v0 ref , main and sensor ground.

#2. double 12 pin
as above with the addition of
IAT/MAT temp , CANL , CANH , TPS , Out3 , Ignition1 , Injector2 , Idle , PWM in for vehicle speed or distributor/tach based rpm , VR2+in (cam)

components are
MPC3394M in 144 pin
MC33814
MC33905S
MAX9926 VR processor
HC-05 footprint for bluetooth

There are also an additional 4 high side and 4 low side drivers on board taken out to headers and the aforementioned daughter card connectors.

CAN on the connector and Bluetooth inside for communications, and on the underside because its based on ManTrak there will be an empty footprint for a Global 3G/GSM/GPS module

see mock-up below

We have a fairly tight deadline to produce these for our clients so we expect to have prototypes underway within the next few weeks. A community version of the schematics and PCB design (minus our special ManTrak bits) will be available soon after.


Attachments:
NanoSkwert Mock Up.JPG
NanoSkwert Mock Up.JPG [ 56.56 KiB | Viewed 18044 times ]
ManTrak Deutsch.jpg
ManTrak Deutsch.jpg [ 158.01 KiB | Viewed 18044 times ]

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 Post subject: Re: NanoSkwert hardware
PostPosted: Sun Oct 05, 2014 12:51 pm 
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looking forward with anticipation,

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 Post subject: Re: NanoSkwert hardware
PostPosted: Sun Oct 05, 2014 2:22 pm 
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reanimotion wrote:
Our NanoSkwert is based on our ManTrak GPS unit using a Deutsch ME housing and measures 135x90x35, we are going to replace the current s12x ManTrak mcu with the 6934 to keep the costs down and simplify things for us


........
MPC3394M in 144 pin



Do you mean MPC5634M ????


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 Post subject: Re: NanoSkwert hardware
PostPosted: Mon Oct 06, 2014 2:54 am 
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mk e wrote:
reanimotion wrote:
........
MPC3394M in 144 pin



Do you mean MPC5634M ????


Crumbs,, That's what I get for working late on a long weekend. I also keep typing MCP in the spec docs and couldn't for the life of me work out why. Until one of the bunnies asked if I was a Tron fan? MCP = Master Control Program and Disney is apparently hiding in my subconscious somewhere.


Yes MPC5634m :?

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 Post subject: Re: NanoSkwert hardware
PostPosted: Tue Oct 07, 2014 6:02 am 
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The flying monkeys here made pretty good progress with KiCAD today.

To keep the board quiet we are moving our GPS/GSM from the main board to the daughter card which means the baseboard wont have to handle RF and the high current 5A power supplies and battery charging circuitry. It also gives clean separation between the FOS baseboard and the protected add-ons.


Attachments:
File comment: 3d of the board minus power/ground planes and high current traces for clarity.
NanoSkwert Mock Up 2.JPG
NanoSkwert Mock Up 2.JPG [ 109.16 KiB | Viewed 18009 times ]

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 Post subject: Re: NanoSkwert hardware
PostPosted: Tue Oct 07, 2014 1:31 pm 
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Location: Over here, doing 'over here' things.
Freescale has an EK for the 33814. You've probably found it already, but just in case, it gives a bit of information, as in reference type things.

I only mention it because I don't see the PNP transistors the 33814 and the basis chip needs, nor IGBT or other drivers connected to the 33814.

Are you buffering sensor inputs to the MCU?
Maxim and TI both have decent rail-to-rail op-amps.


I'll shut up now and let you do your thing. ;)

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 Post subject: Re: NanoSkwert hardware
PostPosted: Tue Oct 07, 2014 7:41 pm 
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no IGBT on board :) Logic only to external igniters or smart coils

High current side of the supporting circuitry is not shown

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Yes! mechanical/hydraulic constant flow injection can be managed by a modern EMS


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 Post subject: Re: NanoSkwert hardware
PostPosted: Thu Oct 09, 2014 7:19 am 
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Community service announcement.....

Sadly, the MC33814 has been voted off the island, overly complicated and too low in spec. Although if someone does want to build a teensy weensy snow-blower or 1-2 cylinder motorbike system have a peek at the MM912_P812 and MM912_S812 integrated chips.

Back to our regular programming :)

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Yes! mechanical/hydraulic constant flow injection can be managed by a modern EMS


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 Post subject: Re: NanoSkwert hardware
PostPosted: Thu Oct 09, 2014 1:42 pm 
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reanimotion wrote:
Community service announcement.....

Sadly, the MC33814 has been voted off the island, overly complicated and too low in spec.
........

Back to our regular programming :)


That's where the other 05e HW attempts all landed too.....just too much cost, overhead, and bother for what they deliver to a non-OEM project.


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 Post subject: Re: NanoSkwert hardware
PostPosted: Thu Oct 09, 2014 6:24 pm 
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We never give in that easily, the project is still running full steam ahead !

I've just voted off the little 2cyl system chip in favour of better and more capable components. Two complicated and entirely different start-up sequences and safety circuits was just silly.
The 33905 SBC and the 9926 VR conditioner are both larger capacity and better suited to the board and the little 2cyl guy was a possible addition only.

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Yes! mechanical/hydraulic constant flow injection can be managed by a modern EMS


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 Post subject: Re: NanoSkwert hardware
PostPosted: Thu Oct 09, 2014 9:07 pm 
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Maybe you guys already know, but the Freescale MPC5634 is actually second-sourced by ST.
Their part number is SPC563M64L5.
They have quite a few Application Notes on their site for this part family.

Good luck with the project!

Thanks,
Tony S.


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 Post subject: Re: NanoSkwert hardware
PostPosted: Fri Oct 10, 2014 9:35 am 
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Location: Australia :)
Thanks Tony,

Yes, I am aware of the second-source via ST, that was an additional positive when choosing a platform to go with for FrankenCIS.

And another just in case no-one is aware.

an existing MPC5554 based ecu is available from New Eagle / Woodward http://shop.embeduk.com/ecm-5554-112---0904--flash-module-7-p.asp

and there is a family of Freescale based competition and low volume off the shelf units http://shop.embeduk.com/engine--powertrain-controllers-38-c.asp

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Yes! mechanical/hydraulic constant flow injection can be managed by a modern EMS


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 Post subject: Re: NanoSkwert hardware
PostPosted: Mon Oct 13, 2014 11:03 pm 
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Board almost complete.

RF and EMI modelling for the twin ground planes and decoupling still on the go

30+ unused eTPU/EMIOS/ADC/GPIO CPU pins to the expansion header and SPI/CAN/SCI in addition to the normal power/ground should allow for almost anything imaginable on the daughter card platform.


Attachments:
File comment: nearly ready to go
NanoSkwert Mock Up 3.JPG
NanoSkwert Mock Up 3.JPG [ 161.03 KiB | Viewed 17922 times ]

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 Post subject: Re: NanoSkwert hardware
PostPosted: Tue Oct 14, 2014 4:19 am 
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Components are now

MPC5634M microcontroller in 144 pin
MC33905S system basis chip (power and IO)
MC33901 second can channel
MC33810 Injector and low side drivers
MAX9926 VR processor
HC-05 footprint for Bluetooth comms
drivers for logic level ignition and pull-ups for KJet DPR are TC4426/7A

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 Post subject: Re: NanoSkwert hardware
PostPosted: Tue Oct 14, 2014 7:07 pm 
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Any idea of time line for the project?

You're doing HW first it looks like?

Then FW?


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 Post subject: Re: NanoSkwert hardware
PostPosted: Tue Oct 14, 2014 8:12 pm 
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Hardware and firmware are being done in parallel, with a priority on the hardware as there is an 8-12 week turnaround for manufacturing. We are running a fairly tight schedule to try and get in before the Chinese New Year break.

Scheduled availability for completed boards is 1st quarter 2015.

While the boards are being manufactured we will be finalising the firmware and tuning interface as the core functional changes have already been ported across from our MS prototype and bench tested via the TRK board.

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Yes! mechanical/hydraulic constant flow injection can be managed by a modern EMS


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 Post subject: Re: NanoSkwert hardware
PostPosted: Wed Oct 15, 2014 9:20 am 
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Looking at the specs, the primary market is CIS control to replace the MS based prototypes, is that right?

Daughter board to follow to allow use with something other that a 1/2 cyl?

.....actually looking at the specs it appear a 4 cyl could be run since a I see ignition 1 and 3 injector capable drivers 1 or which I'm guessing could be pretty easily re-purposed to use as ignition 2.


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 Post subject: Re: NanoSkwert hardware
PostPosted: Wed Oct 15, 2014 12:17 pm 
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Correct, the module is primarily designed for the FrankenCIS project but will happily do up to 4cyl wasted spark and batch injection (sequential if you sacrifice the two aux outputs on INJ3&4, or even 8 cyl twin distributor and batch fired injection).
By the simple addition of the expansion port it still serves our targets but becomes a useable mainboard for other applications.

The daughter card option is obviously not only for our other projects but for adding additional spark/ignition/input and outputs as needed for an application.

The thought was to turn the core base board into a multi purpose main module
1. as is in the Deutsch case, giving 2 spark and 2-4 injection in a small format
2. with a daughter card and additional circuitry - expanded capabilities as needed
3. with a larger more capable base board the NanoSkwert could be installed in the same way as the MicroSquirt module allowing a something like your cinch based prototype or the boostmonkey board but with the NanoSquirt as the plug-in cpu

This gives us one CPU and one code base for all iterations, from simple to complex meaning the firmware side should be simpler for us too.

Our current commercial hardware line-up covers three different Freescale MCUs, one Atmel, two ARM and even a microchip PIC. I can pull it all together on the MPC5634 with alternate feature cards and rationalise our entire product line, the side effect is the board is also a good starting point for o5e.

Someone could even come up with a through-hole based baseboard for the DIY guys avoiding the need for SMD level soldering skills.

draft schematic here http://www.frankencis.com:8084/portals/2/NanoSkwert_draft.pdf

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Yes! mechanical/hydraulic constant flow injection can be managed by a modern EMS


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 Post subject: Re: NanoSkwert hardware
PostPosted: Wed Oct 15, 2014 3:17 pm 
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Excellent.

Now we wait while you work ;)


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 Post subject: Re: NanoSkwert hardware
PostPosted: Sat Oct 18, 2014 2:40 am 
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Getting close now :)


Attachments:
NanoSkwert Mock Up 5.JPG
NanoSkwert Mock Up 5.JPG [ 197.48 KiB | Viewed 17799 times ]

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Yes! mechanical/hydraulic constant flow injection can be managed by a modern EMS
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 Post subject: Re: FrankenCIS nano (Project NanoSkwert)
PostPosted: Sat Oct 18, 2014 4:13 am 
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Project NanoSkwert now has an official name and logo.
Although the Skwert moniker was partly tongue-in-cheek and partly a nod to the MicroSquirt, it would be both unfair and commercial suicide to continue the reference past a project code name.


Attachments:
File comment: back side
NanoSkwert Mock Up 5b.JPG
NanoSkwert Mock Up 5b.JPG [ 120.25 KiB | Viewed 17795 times ]

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Yes! mechanical/hydraulic constant flow injection can be managed by a modern EMS
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 Post subject: Re: NanoSkwert hardware
PostPosted: Mon Oct 20, 2014 12:17 am 
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About to go off for finalising and prototype production.
Have we forgotten anything ?

http://www.frankencis.com:8084/portals/2/Franken8_NANO_Schematic.pdf

*Added by Abecedarian- Extract the PDF from the ZIP file below if the PDF link above does not work.
Attachment:
Franken8_NANO_Schematic.zip [258.59 KiB]
Downloaded 346 times

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Yes! mechanical/hydraulic constant flow injection can be managed by a modern EMS


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 Post subject: Re: NanoSkwert hardware
PostPosted: Mon Oct 20, 2014 10:39 am 
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reanimotion wrote:
About to go off for finalising and prototype production.
Have we forgotten anything ?

http://www.frankencis.com:8084/portals/2/Franken8_NANO_Schematic.pdf


I can't get the link to open...not that I'd really know what I was looking at anyway so :oops:


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 Post subject: Re: NanoSkwert hardware
PostPosted: Tue Oct 21, 2014 11:15 am 
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Not sure it's necessary, but definitely helpful, would be a barometric pressure sensor.

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 Post subject: Re: NanoSkwert hardware
PostPosted: Tue Oct 21, 2014 2:11 pm 
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its a sealed unvented case so not possible on board

The CP ADC could run a barometric sensor externally with no problems - we use it for fuel pressure but for anything other than FrankenCIS it is a spare.

I was thinking more the CPU ports to the expansion header, is there anything o5e required access to that I've not brought out?

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Yes! mechanical/hydraulic constant flow injection can be managed by a modern EMS


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