The TTL serial hardware mod applied to the cassette port could be used , as could the normal serial port.
I think that it would make sense to translate the control codes before they leave the M100. So a new version of the DVI software, which includes control code conversion to VT100 standard. (an alternative is to rework the firmware in the VT100 emulator, which is available, and make it speak M100) Given your above example of an old laptop as a terminal emulator, yes it could work and that is an argument for VT100 code generation in the M100 before it leaves. WRT signal inversion, that's easy to do via software in the M100. Thoughts? ..Steve On Thu, Feb 27, 2020 at 1:27 PM Mike Stein <mhs.st...@gmail.com> wrote: > Is the barcode patch going to be the 'official' interface? > > I haven't programmed mine yet; how useful is Geoff's terminal in 'normal' > 8x40 M100 mode? > > I.e. does it handle all the various cursor etc. control codes properly? > > It's definitely a neat device but you could of course also use an old > laptop or whatever running a terminal program that does a correct > emulation, although that would presumably require a level shifter. > > @ Steve: since most level shifters also invert the signal and I assume > you're bit-banging the interface, is there any possibility of an option to > invert the signals in software? > > > ----- Original Message ----- > *From:* Stephen Adolph <twospru...@gmail.com> > *To:* m...@bitchin100.com > *Sent:* Thursday, February 27, 2020 7:04 AM > *Subject:* Re: [M100] REX & DVI > > What I think makes sense as a project is to direct efforts towards using > the Geoff VT-100 terminal emulator with M100: > > http://geoffg.net/terminal.html > > This would be a great complement to M100. > > I think a great project would be to do some software work to rip into the > DVI code, and pull out the video only routines, and rather than drive the > DVI over the system bus, drive this "external VGA adapter" via serial. > > Several of us have started to disassemble DVI code. > > > > > On Thu, Feb 27, 2020 at 4:30 AM James Zeun <james.z...@gmail.com> wrote: > >> That's really disappointing, I wish I had know before I bought it. The >> whole point of getting the DVI was so that I could continue working on >> documents at home on a bigger screen. I'd have just as been well to have >> taken the SD card out of my NADSbox and stuck it in a winblows PC. >> >> Anyways I won't let that dampen my spirits! I'll figure something out. >> Maybe a gotek drive in the DVI? Anyone tried that? >> >> I do desperately need a new DVI cable, can anyone help? >> >> >> >> >> >> On Thu, 27 Feb 2020, 12:44 am Stephen Adolph, <twospru...@gmail.com> >> wrote: >> >>> I agree. I dont think the issue is with rex. >>> >>> On Wednesday, February 26, 2020, Gregory McGill <arcadeshop...@gmail.com> >>> wrote: >>> >>>> I think the answer is no which is why i put my dvi on the shelf and >>>> gave up for a bit >>>> >>>> On Wed, Feb 26, 2020 at 4:41 PM Stephen Adolph <twospru...@gmail.com> >>>> wrote: >>>> >>>>> Does anyone know if tsdos is at all compatible with dvi? >>>>> >>>>> Dvi installs software of it's own. >>>>> >>>>> Does tsdos support access to the dvi? >>>>> >>>>> Can tsdos ram version be coresident with dvi software? >>>>> >>>>> If the answer is no then you have to do some serious gymnastics to >>>>> transfer from pc to m100 using tsdos, and then from m100 to dvi using dvi >>>>> dos. >>>>> >>>>> >>>>> >>>>> On Wednesday, February 26, 2020, James Zeun <james.z...@gmail.com> >>>>> wrote: >>>>> >>>>>> Would it be possible to copy TR-DOS from the M100 to a floppy? >>>>>> Load it up through the DVI? >>>>>> I've never uninstalled a program, so not sure where F7 comes in to >>>>>> it. Could I not simply KILL the rex manager? >>>>>> >>>>>> I wanted the DVi for typing, but I need the REX for TR-DOS. So I can >>>>>> save my documents to SD CARD or TPDD etc. >>>>>> >>>>>> On Thu, 27 Feb 2020, 12:15 am Stephen Adolph, <twospru...@gmail.com> >>>>>> wrote: >>>>>> >>>>>>> Unload means deinstall using F7. Not remove REX. REX can stay >>>>>>> installed physically...just deinstall rexmgr.ba. >>>>>>> >>>>>>> On Wednesday, February 26, 2020, Kurt McCullum <ku...@fastmail.com> >>>>>>> wrote: >>>>>>> >>>>>>>> You can select TS-DOS with REX and then unload the REX manager. >>>>>>>> That way it looks to the M100 like a regular ROM is loaded and the DVI >>>>>>>> should work just fine from there. >>>>>>>> >>>>>>>> Kurt >>>>>>>> >>>>>>>> On Wed, Feb 26, 2020, at 2:55 PM, Gregory McGill wrote: >>>>>>>> >>>>>>>> well transferring files from a pc with mcomm/laddealpha to dvi is >>>>>>>> facilitated by having rexmgr load tsdos.. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> On Wed, Feb 26, 2020 at 2:46 PM Stephen Adolph < >>>>>>>> twospru...@gmail.com> wrote: >>>>>>>> >>>>>>>> Yep. >>>>>>>> What I would do is make use of the deinstall function on rexmgr >>>>>>>> when you want to use dvi. >>>>>>>> >>>>>>>> Of course I dont know of many option roms that work with dvi >>>>>>>> anyways. >>>>>>>> >>>>>>>> What did you want to do that requires both rex and dvi? >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> On Wednesday, February 26, 2020, Gregory McGill < >>>>>>>> arcadeshop...@gmail.com> wrote: >>>>>>>> >>>>>>>> Pretty sure I posted this a while back :) yes they both want the >>>>>>>> same memory which is a bummer for transferring data between! >>>>>>>> >>>>>>>> On Wed, Feb 26, 2020 at 2:17 PM Josh Malone <josh.mal...@gmail.com> >>>>>>>> wrote: >>>>>>>> >>>>>>>> That has been my experience as well. It appears that something done >>>>>>>> by REXMGR interferes with the loading of DVI DOS. The REX can still be >>>>>>>> used >>>>>>>> as an option ROM, but REXMGR cannot coexist. >>>>>>>> >>>>>>>> On Wed, Feb 26, 2020, 4:33 PM James Zeun <james.z...@gmail.com> >>>>>>>> wrote: >>>>>>>> >>>>>>>> Does the REX work with the DVI? >>>>>>>> >>>>>>>> Only I'm having serious issues getting my recently acquired DVI to >>>>>>>> work with my M100. It only seems to function with the REX manger is >>>>>>>> wiped >>>>>>>> from memory. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>
