Re: MS-DOS 3.30 boot on the CBM-II

From: Francesco Messineo <francesco.messineo_at_gmail.com>
Date: Sun, 5 Nov 2017 23:09:21 +0100
Message-ID: <CAESs-_zuZJsgkLuNyuvf8cwupAeySqmpY16XH1yquHcyoOwyLg@mail.gmail.com>
On Sun, Nov 5, 2017 at 10:59 PM, André Fachat <afachat@gmx.de> wrote:
>
> Am 5. November 2017 10:36:58 PM schrieb Francesco Messineo
> <francesco.messineo@gmail.com>:
>
>> On Sun, Nov 5, 2017 at 10:27 PM, André Fachat <afachat@gmx.de> wrote:
...
>>>>
>>>
>>> The problem with the CBM IEEE488 is that it has non-standard timing
>>> properties.
>>
>>
>>
>> I didn't know that, so I've always read/wrote successfully to various
>> HP instruments with my 3032 and simple basic commands
>> (voltmeters, universal counters, signal generators mostly, but also an
>> HP-IB clock).
>> I hope now everything won't stop working :)
>
>
> That worked with standard BASIC commands? Wow. Maybe they were fast enough.
>
> IIRC the PET timing resulted in having to load the next byte in advance
> possibly from disk, because not reacting quickly enough to a read request
> results in a timeout.


sure, standard OPEN, PRINT, INPUT (some GET too).

I've followed the examples listed in this book:

https://archive.org/details/PET_and_the_IEEE488_Bus_1980_McGraw-Hill


Frank

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Received on 2017-11-05 23:00:46

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