Re: Strange 8255 behavior

From: smf <smf_at_null.net>
Date: Thu, 14 Jun 2018 19:30:01 +0100
Message-ID: <5cfd9740-46b0-c6f6-5e1b-5328dea6e377@null.net>
On 14/06/2018 11:39, Francesco Messineo wrote:
> I knew that already. Way overkill imho. 6502s are still enough common
> (and I have a few of them). It's also a bit of a "mistery" why it
> couldn't be done all inside the fpga, without those few other
> components. But anyway I'm totally new to fpgas.

It's probably a 3.3v fpga, so you need a voltage regulator to power it 
and maybe level shifters on the i/o pins.

I don't know what that ram/flash looking chip is for. It might be that 
the fpga they used doesn't have internal flash.
Received on 2018-06-14 21:00:04

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