[sdiy] 4-bit encoder?

[John Ames]

Counterpoint: a Cortex M0+ offers a whole lot more horsepower in the
same form factor for the same or lower cost, yes - but the overhead of
all that complexity can be fairly substantial in terms of development
effort. Getting from "power-on" to "peripherals initialized" to
"application running" on the 8051 or Z80 is simplicity itself; doing
so on a modern processor with an MMU and dozens of integrated
peripherals, not so much. (And sure, sometimes your development
environment will have library functionality to take care of that for
you, but not always, if the number of tutorials I see on a quick
search is any indication.) There's plenty of merits to newer hardware,
but when all you really *need* is a lawnmower engine, why go to the
trouble of trying to mount a top-of-the-line fuel-injected
turbocharged V12 with a CVT?

On 10/13/20, Ingo Debus <igg.debus at gmail.com> wrote:
>
>> Am 13.10.2020 um 13:57 schrieb john slee <indigoid at oldcorollas.org>:
>>
>> 8051 and Z80 are both 40+ years old and very much alive in 2020
>
> Come on guys, don’t exaggerate.
> Ten years ago, I was convinced that the 8051 was immortal. And now? Sure,
> you can still get it (from Atmel for instance), if the original used the
> classic 44-pin footprint. But for how long from now? Anyway, it’ll cost much
> more than, say, a Cortex M0+ processor. And if you need one of the gazillion
> formerly existing pinouts (like the LPC9xx series from NXP), you’re out of
> luck.
>
> Ingo
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