>Is that really how much I should expect to pay if I ever need a third?
In a word: no. Over the last couple of months I've missed out on about
three replacement SAMs as mine has a problem with vertical hold/tuning.
They all went in the £125-160 sort of range when I was at work and
unable to
of the logic gate layout would be nice ... ;)
>>>
>>> -Original Message-
>>> From: owner-sam-us...@nvg.ntnu.no [mailto:owner-sam-us...@nvg.ntnu.no]
>>> On Behalf Of Tommo H
>>> Sent: 10 June 2012 04:31
>>> To: sam-users@nvg.ntnu.no
>&
gate layout would be nice ... ;)
-Original Message-
From: owner-sam-us...@nvg.ntnu.no [mailto:owner-sam-us...@nvg.ntnu.no]
On Behalf Of Tommo H
Sent: 10 June 2012 04:31
To: sam-users@nvg.ntnu.no
Subject: Good resources for learning about the ASIC?
I'm currently partway through The ZX Spe
12 04:31
> To: sam-users@nvg.ntnu.no
> Subject: Good resources for learning about the ASIC?
>
> I'm currently partway through The ZX Spectrum ULA: How To Design a
> Microcomputer, which is the book partly researched by photographing and
> reconstructing the exact IC layout of th
A nice pdf of the logic gate layout would be nice ... ;)
-Original Message-
From: owner-sam-us...@nvg.ntnu.no [mailto:owner-sam-us...@nvg.ntnu.no]
On Behalf Of Tommo H
Sent: 10 June 2012 04:31
To: sam-users@nvg.ntnu.no
Subject: Good resources for learning about the ASIC?
I'm curr
Well, I know it was done in wirewrapped logic chips first (a rats nest), and
then that circuit schematic was turned into verilog and sent to vlsi for
manufacturing. Although iirc Bruce told me they were using someone else first
(or vlsi changed their process mid way), and they had to convert the
I'm currently partway through The ZX Spectrum ULA: How To Design a
Microcomputer, which is the book partly researched by photographing
and reconstructing the exact IC layout of the Spectrum's ULA. So it
goes into a lot of detail about how ICs were produced in general, the
nature of ULAs, the Spectr
