[Coco] Drivewire question

[Mark Marlette]

Willard,

Depending on your setup. CoCo1,2,3, multi-pak, no multi-pak..... etc....

You have to watch out what type of drivers you select. The ones Roger listed require a power source that needs to come from the CoCo or DC-DC converter. The CoCo3 doesn't generate the voltage level for proper conversion.

The multi-pak does provide all the proper voltages to interface to.

The charge pump interface chips are a better solution as they develop their own voltages from +5, that source is available in all CoCos.

Regards,

Mark
Cloud-9



----- Original Message -----
From: "Roger Taylor" <operator at coco3.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Wednesday, March 25, 2009 11:45:32 PM GMT -06:00 US/Canada Central
Subject: Re: [Coco] Drivewire question

At 09:01 PM 3/25/2009, you wrote:
>On Wed, Mar 25, 2009 at 04:18:57PM -0700, Darren A wrote:
> > In the case of DriveWire, interrupts are not used for the serial data
> > transfers. All transactions are initiated at the request of the CoCo
> > and interrupts are masked during these transactions. Using the same
> > tecnique for a 6551 version of DriveWire would not require any
> > increase in bandwidth over the bus since the serial port  I/O is not
> > interleaved with I/O to any other device during a transaction.
>
>Does that also apply to the OS-9 client?  If so, wouldn't that rather
>hose multitasking?
>
>The fscking hi-res mouse adaptor is bad enough, and the halting floppy
>controller... :-(
>
>(:Hi Gene.  Yes I know the serial mouse is the answer.  But that
>wasn't the question. :-)
>
>I'm ordering the parts to convert a modem pak into an rs-232 pak.
>
>Willard



Willard, I have 400  1488's  and 400 1489's...  :)  What'ya need?


-- 
Roger Taylor

http://www.wordofthedayonline.com


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