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Re: New Build - N8VEM Mini V8
Hi James,
same results with hyperterminal.
my serial cable swaps 2 & 3 and 5 goes to 5. I have joined 1,4,6 and
7,8 on both ends.
I actually added xmodemf to a new romimage i created in vb.net.
Thanks,
Nik
On Nov 25, 10:37 pm, James Moxham <mox...@internode.on.net> wrote:
> The rom should contain xmodem.com, not xmodemf.com. The f version has a
> shortened delay for faster downloads.
>
> Drive B should contain:
> B>dir
> B: FORMAT COM : XMODEM COM : USTART COM : UREAD COM
> B: README TXT : XMR COM
> B>
>
> For hyperterminal, baud rate 38400 and set the flow control to None.
> Leave other settings as is.
>
> Run Format
>
> Then in drive B run
> xmodem r mbasic.com
>
> You should start getting a squiggly character every 10 secs or so which
> is the nak coming back.
>
> Then in hyperterminal, 'transfer' then select the protocol as xmodem and
> send the file.
>
> Also just to double check, what does the serial port look like? My PC
> has a D9 male and the N8VEM has a D9 male, so I made a little crossover
> that swaps 2 and 3, and on the PC side joins 1,4,6 and also joins 7,8.
> The gnd 5 goes through. So the cable has 3 wires.
>
> brizza wrote:
> > update.
> > - I have burnt a new rom with VB.NET which includes xmodemf.com but
> > still not able to transfer files.
> > - changed the uart to a W86C450. PC can still communicate with the
> > mini but unable to transfer files.
>
> > Regards,.
> > Nik.
>
> > On Nov 25, 6:47 pm, brizza <nbri...@optusnet.com.au> wrote:
>
> >> Hi James,
> >> Well the RAM drive is okay. I was able to SAVE 123 test.txt and it is
> >> listed in A>'s directory. I've tried Tera Term and Vbnet Ide to
> >> transfer files by xmodem from the PC and get this message;
> >> B>xmodem r
> >> myfile.txt
>
> >> XMODEM Ver
> >> 5.0V
> >> Ready to
> >> receive
> >> ^U^U^U^U^U^U^U^U^U++UNABLE TO RECEIVE BLOCK - ABORTING+
> >> +
> >> ++INCOMPLETELY RECEIVED FILE DELETED++
>
> >> I have used VBNET IDE successfully on the SBC but needed to have
> >> xmodemf on the N8VEM for it to work.
>
> >> I guess i could try another uart? I've changed the CPU to a 4MHz but
> >> no change.
>
> >> Regards,
> >> Nik
>
> >> On Nov 25, 11:15 am, "James Moxham" <mox...@internode.on.net> wrote:
>
> >>> You could also try a different terminal program eg teraterm. Plus (from
> >>> memory here) I think hyperterminal has two options - 'send' and 'transfer'
> >>> and one of them doesn't work but I haven't got the program on this PC so I
> >>> can't describe exactly where that is).
>
> >>> The vb.net ide has some commented out code that puts delays in between
> >>> every byte sent and received and puts those bytes on the screen, so in a
> >>> worst case scenario you can take a minute to send 128 bytes and check
> >>> everything goes through.
>
> >>> On Wed, 25 Nov 2009 09:33:21 +1030, brizza <nbri...@optusnet.com.au>
> >>> wrote:
>
> >>>> Hi James,
> >>>> Thanks. I can get into B> and run format. Xmodem starts on the mini
> >>>> but hyperterminal gives up after 6 retries when using xmodem manual
> >>>> transfer . Dir on Drive A: gave NO FILES.
> >>>> I'll flip the battery tonight and do a format and try again. I'll
> >>>> also check the SAVE command works and give vbnet ide a try also.
> >>>> Thanks.
> >>>> Regards,
> >>>> Nik
>
> >>>> On Nov 25, 9:34 am, "James Moxham" <mox...@internode.on.net> wrote:
>
> >>>>> The 628512 and 684000 look the same pinout. pin 1-8 would be the same
> >>>>> as
> >>>>> 0-7. Indeed if you are talking via hyperterminal then that means the
> >>>>> 64k
> >>>>> CP/M uses must be working and that means the chip is ok.
>
> >>>>> Yes, try flipping the battery out with the power off then wait 10secs
> >>>>> then
> >>>>> put it back in again. Can you get into drive B>
>
> >>>>> Then run Format. Then go back to drive A and try DIR and it should come
>
> >>>>> back with 'no files'
>
> >>>>> Then go back to drive B and try 'xmodem r myfile.txt' and try sending
> >>>>> it a
> >>>>> file manually from within hyperterminal's xmodem.
>
> >>>>> Or send it from the vb.net ide.
>
> >>>>> There are some more tests if that doesn't work...
>
> >>>>> Cheers, James
>
> >>>>> On Wed, 25 Nov 2009 07:35:55 +1030, brizza <nbri...@optusnet.com.au>
> >>>>> wrote:
>
> >>>>>> Hi James,
> >>>>>> I'm not able to transfer files from the PC to the Mini. The serial
> >>>>>> cable is wired as per the schematic and i can communicate with the PC
> >>>>>> using Hyperterminal. The only thing i can think of is that the SRAM i
> >>>>>> have is incompatible ? Futurlec sent me 628512 SRAM instead of
> >>>>>> 684000.The only difference i see is that the data I/O pins are
> >>>>>> slightly different (offset by -1) ie. for the 68400 the pins are I/O 1
> >>>>>> to I/O 8 whereas the 68512 pins are I/O 0 to I/O 7. Could this be the
> >>>>>> problem? I have'nt tried to save anything to drive A: yet but i'll try
> >>>>>> this tonight.
> >>>>>> Cheers,
> >>>>>> Nik
>
> >>>>>> On Nov 23, 10:49 pm, James Moxham <mox...@internode.on.net> wrote:
>
> >>>>>>> Woot!
>
> >>>>>>> Much jumping and rejoicing! What are your plans for the board?
>
> >>>>>>> Cheers, James
>
> >>>>>>> brizza wrote:
>
> >>>>>>>> Hello All,
> >>>>>>>> Attached is a photo of my New N8VEM Mini with LCD and Keyboard
>
> >>>>> working
>
> >>>>>>>> nicely. Thanks James, for a neat little CP/M Computer !
>
> >>>>>>http://picasaweb.google.com/Brizza62/DropBox?pli=1#5407261847610654274
>
> >>>>>>>> Cheers,
> >>>>>>>> Nik
>
> >>>>>>>> --
>
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> >>>>> --
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> >>> --
> >>> Dr James Moxham
> >>> Belair Family Health Centre
> >>> 459 Belair Rd, Belair, South Australia
> >>> 5052
> >>> Phone: 61+8+8278 8900
> >>> Fax: 61+8+8370 3499
> >>> mox...@internode.on.net
>
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