[Diy_efi] wishlist closing

[Marcell Gal]

Hi Guys,

I'm glad diy-efi is back.

As some of you already know, the v3 version of GenBoard controller HW
(main field is ECM, but highly suitable for other controlling tasks too)
developed at
http://www.squirrelpf.com/msavr/index.php?page=HardwarePage%2FUnderDevelopme
nt
is in the final stage. There is some more space onboard (great we have 2
sides,
but the professional Econoseal-III connector steals much space) which we can
fill, maybe you have wishes. The switching flyback (that can also supply
voltage for
ionsense) or your favorite knock circuit would be good candidates.
This ECM is not underground fairytale..

Your opinion counts,
have fun,
    Marcell

Software is from the same powerful breed, as for the proven ancestor:
http://www.squirrelpf.com/msavr/index.php?page=GenBoard
It started with similar features as the good old megasquirt, real (stepper
based) idlecontrol was added first, than came LCD support, keyboard,
menusystem, powerful configuration system, eventqueue for sequential
multichannel output operation, wbo2 etc..
(using the fact that it has 10..20 times more free resources left
 beyond basic operation than the good old megasquirt: IO, cycles, SRAM
and more developer friendly architecture).
The main idea, is that if one needs basic functionality, this ECM is just as
easy as megasquirt (eg. supports megatune protocol!). If more functionality
is needed, than much easier.


HW features (pasted from wiki):
- AtMega128
- analog filters for common sensors
- 2 channels: "standard" optocoupled "coil" trigger input
- 2 channels: digitally controlled WBO2 with currentdrive pump (YEEEAAH!)
- 8 smart power drivers primarily for ignition banks (high voltage friendly
trace clearance), but suitable for injector/other purpose (not HWpwm-ed)
- 8 power drivers primarily for injector banks (each is HW-pwm capable).
Suitable for other purposes, even ignition with some paint (for insulation
beyond what solderprotect provides)
- 2 extra channels of power drivers (from logic level FETs, similar to the
WBO2 heater FETs)
- 8 medium current drivers (max350mA low-side, eg.: LEDs, relays, small
solenoids, MSD module)
- 4 channel (x1A) bidirectional stepper driver ( idle-air stepper,
whatever...)
- low cost extra 8ch,12 bit ADC (MCP3208) for future enhancements
- 2 x OPA input circuits usable as VRsensor or generic amplifier (eg.EGT)
- Dallas [1-wire] (usable for whole range of apps: authentication, temp,
logging-mem, USB, inter-board comm etc...) - RS232 port
- small (AtTiny? little-guy or AtMega128 based) addon board for the flyback
control, also usable as DC/DC at the same time - capable to produce IonSense
voltage - or HW-stimulator or always-powered uC that listens for specific
events and wake up the AtMega128 when necessary or other tasks, who knows
what it will be useful for. This powerful flyback rail (the original MS
flyback handled max 3A average with 100W heating; genboard 2.2 was several
times better /motorola-ms guys applied it for their external flyback board/;
the new switching flyback handles sane 3A average current with only 3W
heating, and crazy high /beyond-efi/ 20A with only 30W heat!!! ). The
AtTiny? has +4 ADC channels (10bit). It might jump back from addon onto the
board, read below.
- headers and connectors for various stuff, eg. engine connector, WBO?
connector, power, LCD, keyboard, interboard-comm.
- PCB can be stuffed with the professional EconoSeal?-III automotive
connector (suggested for lowZ) or cost-efficient edge-DB37 connector (or
case-mounted custom connector)
- AD597 dedicated thermocouple (EGT) circuit
- designed for worldwide available Alubos1600 case, easy assembly (slide-in,
max 2 L-shaped heatsinks attached to top of case) and group-manufacture of
endplates for econoseal and the most common cases people require. (DanaScott
thinking on forking a PCB variant that fits into Ford EEC case and some
people will want case-mounted connector with the pinout of their favorite
ECM).

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