[Bulk] Re: [Diy_efi] Modular approach to EFI controllers

[Mike]

Silabs have some neat stuff, used to be cygnal,

http://www.silabs.com

Is the FPGA that necessary, I mean, with a fast enough processor
and the appropriate software it should be a chince, even if you had
a second CPU doing nothing but  the timing and ion sensing etc,
you are not going to have the spark events coincident so surely
with a CPU even doing 4Mhz there is enough time, these beasts
are cheap have good a/d and run 20Mhz etc...

mike



At 09:20 AM 10/1/07, you wrote:
>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.
>
>On Sun, 2007-09-30 at 23:32 +0100, ian wrote:
>> On Sun, 2007-09-30 at 15:51 -0400, Curtis Richards wrote:
>> > Hi Steve,
>> > 
>> > 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.
>> 
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Regards from


Mike
Perth, Western Australia
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