[Coco] CoCoSDC / SDC-DOS file corruption for RS-DOS?

S Klammer sklammer at gmail.com
Wed Feb 8 13:28:39 EST 2017


Thank-you folks for the "quick fix".  I suspected that I may have
encountered the same issue before and was going to try and replicate...
but, now I'll just re-seat socketed chips.

Shain
On Feb 8, 2017 1:23 PM, "Nick Marentes" <nickma at optusnet.com.au> wrote:

> On 7/02/2017 7:02 AM, Darren A wrote:
>
>> On Mon, Feb 6, 2017 at 12:00 PM, Nick Marentes <nickma at optusnet.com.au>
>> wrote:
>>
>> The SDC can corrupt when writing in double clock speed.... just like a
>>> real disk controller to floppies.
>>>
>>> Nick
>>>
>>>
>>>
>> That should not happen, and this the first report I have seen of such an
>> issue.  If you can provide specific details of any situation that causes
>> corruption, please report it to me so I can investigate.
>>
>> Use the gmail address from the header of this posting.  Please include as
>> much information as possible, including CoCo model, 6809 or 6309, MPI or
>> no
>> MPI, version of SDC-DOS, version of MCU firmware, etc..
>>
>>
>> - Darren
>>
>>
>
> Problem solved thanks to the help of Darren and Guillaume.
>
> My CoCo-SDC would not work properly at high clock speed and I found that
> by removing the socketed chips (CPLD's) and reseating them, my problem
> disappeared.
>
> Everything is working perfectly now.
>
> Nick
>
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