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Re: Re: eCos on 80186


>>>>> "Grant" == Grant Edwards <grante@visi.com> writes:

    Grant> As a purely academic question, what is the "smallest"
    Grant> processor/platform to which eCos has been ported? There are
    Grant> some fairly "wimpy" processors with gcc support (e.g. 6811,
    Grant> AVR), but they tend to have rather limited address spaces
    Grant> by eCos standards.

Obviously this depends on the definition of "smallest".

I have RedBoot running on an old vanilla 68000, but haven't finished
the eCos side yet. In terms of transistor count I suspect that is the
smallest - obviously the lack of on-chip peripherals helps.

Anoncvs has support for h8300 and calmrisc16 (the latter RedBoot-only
IIRC). From a computer science/architecture perspective I suspect one
of those two would qualify as "smallest". I have not been involved
with those ports so don't know much about them.

For practical hardware design purposes I suspect the LPC2xxx ARM chips
currently qualify as smallest.
Bart

-- 
Bart Veer                       eCos Configuration Architect
http://www.ecoscentric.com/     The eCos and RedBoot experts


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