[Bulk] Re: [Diy_efi] Modular approach to EFI controllers
Mon Oct 1 07:16:28 UTC 2007
On Mon, 1 Oct 2007 09:20, Steven P. Donegan wrote:
> On Sun, 2007-09-30 at 23:32 +0100, ian wrote:
> > On Sun, 2007-09-30 at 15:51 -0400, Curtis Richards wrote:
> > > In looking for an 'engine' for your design have you considered
> > > something like the TiniARM from New micros?
> > Our basic design will be a low speed/power ARM doing the houskeeping
> > and feeding of an FPGA 'timing controller'.
> > the FPGA will handle all the events like spakrk timing etc. as well as
> > control over an ADC for the gathering of ion sensing data.
> > the ARM will control the parameters fed to the FPGA and process the ion
> > sense data read back from it.
> As Ian says this is indeed our design - I'm simply looking for a proper
> automotive temperature rated MCU at this point. One with a 'lot' of A/D
> would be nice we'd like to do more than one channel of ion sensing -
> that requires fast A/D converters.
These may not be fast enough on their ADC to do it on their own...
Atmel have a new line (AVR32) with on-chip DSP at least in some
versions. But I don't know if they're automotive-tolerant. The
datasheets are mostly marked "preliminary".
You'd probably be more interested in the UC3B microcontroller with
DSP than the SP7 kitchen sink.
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