[Coco] DW and 6551

[Stephen H. Fischer]

Not from what I remembered.

The flaw is in the 6551 itself. See my other post.

I have lots of Synertek chips, I hounded them about the 6809 CPU kit for the 6502 SYM-1.

I got SN0001!

Then I had to go to Halted to get a chip for them to program to make it work. Only a block away.

Speaking of Halted, can others get their webpage to display? I still cannot.

http://www.halted.com/

SHF

----- Original Message ----- 
From: "Aaron Wolfe" <aawolfe at gmail.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Tuesday, February 10, 2015 8:12 PM
Subject: Re: [Coco] DW and 6551


> On Feb 10, 2015 11:00 PM, "RETRO Innovations" <go4retro at go4retro.com> wrote:
>>
>> On 2/10/2015 9:26 PM, Stephen H. Fischer wrote:
>>>
>>> And there is the 6551 flaw if I remember correctly voids the entire idea
> of using it.
>>
>> What flaw is that?  The CBM folks use 6551s
> all the time with no issues.
>>
>> JIm
> 
> I don't know the details, but I'm pretty sure the problem is limited to the
> Tandy Deluxe rs232 pak.  There are other 6551 based serial cards for the
> coco that can operate at higher speeds.  Unfortunately the Tandy card is
> the most common.