Msg: 2935 *Conference*

07-30-92 04:51:16

From: DERWOOD TWIGG

To : ROBERT BENSON

Subj: REPLY TO MSG #2923 (LIB XFER W/ YMODEM BATCH)

Essentially all programs, but unpredictable.  At first I was doing the same
sequence of programs being transferred from PC to M100 with LAPDOS. When I got
within a few K of mem left, LAPDOS on M100 hung (loop?) (lost?) and the PC
software said "No Response".  Sometimes the M100 would coldstart itself,
sometimes I would have to use the reset button on back of M100, which then
resulted in the coldstart (BREAK key had no effect). I have run several mem
tests, two of which were supplied with the mem expansion I have, and even
though I was only trying the xfer into the bank0 (main 32K).  I have tried
swapping the main 32K chips around -- no effect.  I have tried different order
of xferring same programs and just xferring different programs -- same results.
If I xfer programs that I downloaded a year ago with XMODEM, no problem.  Only
problem when I xfer programs that were recently downloaded w/ YMODEM Batch.  I
have studied the program files on the PC and have found that the older program
ASCII files do not have an EOF character, but are padded with nulls out to the
next multiple of 64 bytes.  The YMODEM ASCII files have a hex 1A EOF character,
and are not padded at all.  I am about to write a program to copy those YMODEM
ASCII files to drop the EOF and padd to multiple of 64K. Don't know if it will
do the job.  Thanks for your help.  Hope you have some ideas.