#: 20045 S12/OS9/68000 (OSK)
    19-Jun-94  19:14:50
Sb: #20020-#Zmodem Question
Fm: Bud Hamblen 72466,256
To: David Breeding 72330,2051 (X)

David,

I'm running a PT68K-4 board, the "heart" of the Delmar System IV and have the
same problem with input overrunning the serial port when rz is writing the file
to /h0 (an IDE drive in my case).  If I use /r0 (the ramdisk) to receive the
file, all works well.  Invoked with rb the program works fine receiving
XMODEM/YMODEM protocols. The serial driver I have (sc68681) has only an 80 byte
receive buffer.  It is similar to the driver presented in Peter Dibble's OS-9
INSIGHTS book and I suspect it is the standard Microware MC68681 driver that
they license to OEMs. Maybe you can get a driver with a bigger receive buffer
from Ed Gresick.

Bud


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