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Re: Super Serial Card Question?

mdj wrote:

Michael J. Mahon wrote:



What?  You mean there's no checksum on transfers?

And lots of folks are using their SSCs at 115kbps--reliability depends
on the program(s) doing the transfer.  Length of cable can be a speed
consideration, but up to 25 feet shouldn't be a problem.



I used to use an SSC at 19.2k to do data transfers between my IIe and
PC years ago, before I acquired a Workstation card. Never dropped a
bit, but I did use z-modem :-)

Accelerator probably helped too. I'd be wary of trying this speed in
the monitor using just the SSC firmware drivers - they're notoriously
dodgy

Cable was around 15 feet long, standard IDC ribbon.

I've never heard of anyone breaking the 19200 barrier with a SSC. How
is this achieved?


If you drop a $10 into the 6551 speed register, it runs at 115kbps.
Apparently, this is not well known, since someone sells a "turbo"
option daughterboard to achieve this speed, too.

-michael

Music synthesis for 8-bit Apple II's!
Home page:  http://members.aol.com/MJMahon/

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