[Coco] CF Card Question

Luis Antoniosi (CoCoDemus) retrocanada76 at gmail.com
Thu Jun 20 22:52:02 EDT 2013


my experience tells me each CF card has a different IDE emulation. I have a
card that only worked after being raw copied using Active Disk Image (it's
30 dial trial so you can test it).

Sure they are true sandisks ? are they equal in color and shape too ?



On Thu, Jun 20, 2013 at 9:23 PM, Ed Orbea <ed.orbea at gmail.com> wrote:

> I've been having problems to the CF cards I bought to make "backups" of my
> SuperIDE CF distro card.
> Mark M has graciously offered that if I send him my cards, he will place
> the CF distro on them, unless there are physical problems with the cards,
> but I don't want to waste his time, if I can resolve the issue 1st.
>
> So that caused me to ask a question:
> I purchased the exact same SanDIsk 256mg cards that Mark shipped me.
> I used Aaron's sidewalk (ver 0.3) to copy the image to my WInXP system
> I also used other utilities (dd for windows, Roadkill's raw copy) to copy
> the image to the same WinXP system
> .
> Then I used the same utilities to (Sidewalk, dd for windows, raw copy) copy
> the recently copied images to the new CF cards. All utilities showed that
> the copy function was successful.
>
> After performing the copy, I used the same utilities to make a new copy
> form the new CF cards, the image that I just recently copied.
>
> Thus I have multiple copies of the original image and multiple copies of
> the copy image. Hopefully this makes sense).
>
> Then I used the diff command to compare the original to what I copied from
> the new set of CF cards, and diff showed absolutely no difference.
>
> But when I use the new CF cards in SuperIDE the system basically 'freezes'.
> The only thing that happens is that either A ampersand and the letter A
> appear in reverse video on the bottom of the screen, or the screen gets
> 'spatklies'
>
> My system is a CoCo3 and MPI with my FDCC in slot4, SSC in slot3, Orch90 in
> slot2 and SuperIDE in slot1
>
> All power is turned off to the CoCo and peripherals (at the power strip)
>
> The MPI is set to slot before power up
>
> All power is applied st the same time
>
> If I use the original CF disto, all works perfectly.
>
> So to make a long story, short. Can CF cards have a problem being READ or
> to they go 'bad' and give erronous data when being READ?
>
> Thanks
>
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Long live the CoCo



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