So don't run QBASIC (or any other MS-DOS program). The free trial
version of 'BBC BASIC for Windows' is easily powerful enough to do
this with no danger of data loss, and without faffing around with
Interrupt Service Routines and the like:
Not read all the thread, but I bring in data from our Mills and Lathes via
RS232 using a computer with the Heidenhain free programme, TNCreoNT. Seems
easy to me, download data, save file, open with WordPad, print !!
Maybe I should read the whole thread !!!
It beats me why this is proving to be so so difficult. There's a very
good terminal emulator program (Tera Term) for windows that has a binary
logging facility. You can also select xon/xoff, hardware or no flow control.
If you simply log the output to a file, then use the 'convert' utility from
the ImageMagik package, you should be able to have something working within
Both the above packages are well proven and free:
For pcl conversions, imagemagick may also need this:
It's proving difficult because I'm looking for a simple hardware solution. A
serial to parallel converter!!! Most respondants, including you ChrisQ are
suggesting a software solution, but that's not what I seek. So far I have
sourced two supposedly serial to parallel converters. Both have proved in
fact to be parallel to serial, the third is a yet to be found - do you have
Looks like you have fixed the faults in any case, but if you want to get any
job done, use all available tools, is the way I always approach such things.
After all, the objective is to get the job done, but am just as bad myself,
getting sidetracked to get a job done a preferred way :-).
If you haven't found one already, there was a simple design from years
used one of the old general instrument AY5-1013 standalone uart chips. Can't
remember how much external logic was required, but probably only a baud rate
generator and rs232 level conversion. The original idea cam from a GI app
note and a google search should find it. No micros or programming, just
and a bit of added hardware...
Solved the logic analyser printing problem by getting a genuine serial to
parallel converter from RS. (Silly money but this is a diversion off a
project, not an aim in itself). Got the Micon 850 up and talking to me, now
I'm fault finding on the tape subsystem. It uses a 250B data cassette deck
by Memtec, illustrated on the bottom of this web page:
Apparently used on Patriot missiles as well as my ancient Micon 850
controller ! So far found one interface line (FLUX 0) where both the driver
in the rack and the receiver in the deck were kaput, but more lurks to be
found as it still isn't writing.
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