Re: DOS/65

[brizza <nbri...@optusnet.com.au>]

Just probing the resistors and i'm getting 3k on R9 and R10 where it
should be 10K?. The resistors themselves give 10K uninstalled. With R9
out of circuit, PD3 and MA16 are grounded..is that normal?

Regards,
Nik

On Jul 11, 12:23 am, "Dan Werner" <danwe...@gmail.com> wrote:
> No problem, let me know if I can help!
>
> Dan
>
>
>
>
>
>
>
> -----Original Message-----
> From: n8...@googlegroups.com [mailto:n8...@googlegroups.com] On Behalf Of
>
> brizza
> Sent: Sunday, July 10, 2011 3:32 AM
> To: N8VEM
> Subject: [N8VEM: 10435] Re: DOS/65
>
> Hi Dan,
> Thanks for the info on the I/O board patches. Much appreciated !
> Unfortunately i have not been able to get the 6502 going standalone.
> Even with all the patches. I'll go over everything again and burn the eprom
> again just in case the image has corrupted. I must admit i've been a little
> slack lately but will spend more time on this in the coming week.I suspect i
> may have a bad chip somewhere....
>
> Thanks again,
> NIk
>
> On Jul 10, 1:37 pm, "Dan Werner" <danwe...@gmail.com> wrote:
> > Hey Nik,
>
> > Did you ever get the stand alone 6502 working?   If not it could be
> > because of some jumpers that are required on the IO card!   I just ran
> > acrossed them while building a second 6502 stand alone for myself.
>
> > Here are the patches:
>
> > " I did some checking here and noticed that a couple of traces were
> dropped.
>
> > You'll need to add a jumper on the back of the PCB between pin 1 of K2
> > and pin 3 if U1.  Also a jumper between pin 4 of U1 and R14 pull up
> > resistor on the pin not connected to VCC.  I am not sure why those
> > traces were missed but it is an easy fix.  Installed a jumper at K2
> > between pins 1 and 2 to connect the output of the PTM (O1) to the /NMI
> line via the U1 inverter.   "
>
> > Dan
>
> > -----Original Message-----
> > From: n8...@googlegroups.com [mailto:n8...@googlegroups.com] On Behalf
> > Of
>
> > brizza
> > Sent: Thursday, June 16, 2011 5:51 AM
> > To: N8VEM
> > Subject: [N8VEM: 10286] Re: DOS/65
>
> > Hi,
> > I checked the specs on the 6502 chip i had and it was only a 1 mhz so
> > i replaced it with a 2mhz chip from an apple ii motherboard. It still
> > won't work with the i/o board but does work in host mode on the N8VEM,
> > i think..... output below;
>
> > CP/M-80 VERSION 2.2C FOR THE N8VEM - W/ATAPI & FLOPPY
>
> > A0>C:
> > C0>DWCON09
>
> > CP/M-80 VERSION 2.2C FOR THE N8VEM - W/ATAPI & FLOPPY
>
> > A0>C:
> > C0>DWCON09
>
> >    PC  AC  XR  YR  SP  SR(NVRBDIZC)
> > ! F804 00  00  00  FB  76-01110110
> > .BOOT 0
>
> >    PC  AC  XR  YR  SP  SR(NVRBDIZC)
> > ! 0111 9D  00  01  00  BC-10111100
> > .BOOT 4
>
> >    PC  AC  XR  YR  SP  SR(NVRBDIZC)
> > ! 0111 9C  FF  00  00  BC-10111100
> > .
> > I'm hoping that proves that the host processor board is working.
> > The boot command didnt work though...
>
> > Cheers,
> > Nik
>
> > On Jun 13, 12:03 am, "Dan Werner" <danwe...@gmail.com> wrote:
> > > Not sure, I bypassed my 7805 and power the board from a 5v lab supply.
> > > -- Dan
>
> > > -----Original Message-----
> > > From: n8...@googlegroups.com [mailto:n8...@googlegroups.com] On
> > > Behalf Of
>
> > > brizza
> > > Sent: Sunday, June 12, 2011 7:01 AM
> > > To: N8VEM
> > > Subject: [N8VEM: 10231] Re: DOS/65
>
> > > Hi,
> > > Some good news. the 6502 host processor works on the N8VEM. It goes
> > > to the monitor prompt. I guess something is wrong with the mezzanine
> > > board. I have noticed that the 7805 gets really hot to touch almost
> > > straight away.  Is that normal?
>
> > > Regards,
> > > Nik
>
> > > On Jun 11, 3:46 pm, "Dan Werner" <danwe...@gmail.com> wrote:
> > > > It should go to a monitor prompt after reset , and will not boot
> > > > until a monitor command is given.    Start with just the IO board
> > > > and Processor board first.  Once you get a monitor prompt, then
> > > > add the backplane and the disk IO.
>
> > > > Dan
>
> > > > -----Original Message-----
> > > > From: n8...@googlegroups.com [mailto:n8...@googlegroups.com] On
> > > > Behalf Of
>
> > > > brizza
> > > > Sent: Saturday, June 11, 2011 12:15 AM
> > > > To: N8VEM
> > > > Subject: [N8VEM: 10227] Re: DOS/65
>
> > > > Hi Dan.
> > > > Thanks. I've removed the 6840 and jumpered pin 1 and 9 on the 6551.
> > > > BUt still no floppy activity or output to the pc or pocketerm. I
> > > > hooked up the HDD and can hear it spinup when reset is pressed. Do
> > > > the jumper settings on the disk I/O need to be changed? To save
> > > > describing my current setup i've posted a picture here;
>
> >https://picasaweb.google.com/Brizza62/DropBox?authkey=Gv1sRgCJeI3tvp-...
> > > > pli=1&gsessionid=sTTcbXUVTz5E3ob_RwgDqw#5616825622378941650
>
> > > > Thanks for your help with this.
>
> > > > All the Best,
> > > > Nik
>
> > > > On Jun 11, 11:45 am, "Dan Werner" <danwe...@gmail.com> wrote:
> > > > > Try a jumper from pin 1 to pin 9 on the 6551, sometimes the pc
> > > > > serial port will not properly use the CTS pin.  I would also
> > > > > remove the 6840 from the io board.
>
> > > > > Dan
>
> > > > > -----Original Message-----
> > > > > From: n8...@googlegroups.com [mailto:n8...@googlegroups.com] On
> > > > > Behalf Of
>
> > > > > brizza
> > > > > Sent: Friday, June 10, 2011 7:21 PM
> > > > > To: N8VEM
> > > > > Subject: [N8VEM: 10225] Re: DOS/65
>
> > > > > well that didnt work for me. i'll try to get the 6502 host
> > > > > processor working in the n8vem.
>
> > > > > Regards,
> > > > > Nik
>
> > > > > On Jun 11, 8:44 am, brizza <nbri...@optusnet.com.au> wrote:
> > > > > > Hi Dan,
> > > > > > I found the post on the backplane mod and i'll extend the
> > > > > > mezzanine i/ o power reset out from under the backplane.
>
> > > > > > Thanks !
> > > > > > Nik
>
> > > > > > On Jun 11, 3:00 am, danwerner21 <danwe...@gmail.com> wrote:
>
> > > > > > > It does need a reset.   I added a jumper for mine.   There
> > > > > > > is also a mod required on the backplane.  You should be able
> > > > > > > to find it on the forums, but if not I will get you the
> > > > > > > details of that mod when I get home tonight.  It is only a
> > > > > > > single jumper, and not hard to do, if I
> > > > > remember correctly.
>
> > > > > > > Dan
> > > > > > > On Jun 10, 2011 8:46 AM, "Nik Brisevac"
> > > > > > > <nbri...@optusnet.com.au> wrote:> Hi Dan,
> > > > > > > > I have the 6502, mezzanine and backplane all connected
> > > > > > > > with disk i/o and
>
> > > > > > > floppy drive with the DOS65 disk image on a 720k floppy disk
> > > > > > > but no joy.Does it need a reset to start as with the N8VEM?
> > > > > > > Are there any mods required to the boards? I've checked the
> > > > > > > jumpers on the host processor board against your photo and
> > > > > > > it looks good. Looking at some of your photos i think i have
> > > > > > > the backplane jumpers right but i couldnt find anything on
> > > > > > > the mezzanine board. I've tried a few different
> > > > > combinations but no change.
>
> > > > > > > > Reagrds,
> > > > > > > > Nik
>
> > > > > > > > Regards,
> > > > > > > > Nik
>
> > > > > > > > ----- Original Message -----
> > > > > > > > From: danwerner21
> > > > > > > > To: n8...@googlegroups.com
> > > > > > > > Sent: Thursday, June 09, 2011 10:51 PM
> > > > > > > > Subject: Re: [N8VEM: 10212] Re: DOS/65
>
> > > > > > > > It is the same serial cable, and I would check the jumper
> > > > > > > > settings on the
>
> > > > > > > picture that I posted with the firmware and disk image. I do
> > > > > > > not think 1Mhz chip/crystal will work reliably, it is not
> > > > > > > quite fast enough to do the disk polling for the floppy, but
> > > > > > > a
> > > > > > > 1.8432 should (I tested with a 2), make sure that you have a
> > > > > > > 6502 that will support > 1mhz. Let me know how it goes, or
> > > > > > > if you have any other
> > > > questions!
>
> > > > > > > > Dan
>
> > > > > > > > On Thu, Jun 9, 2011 at 7:05 AM, brizza
> > > > > > > > <nbri...@optusnet.com.au>
> > > > > wrote:
>
> > > > > > > > Hi Dan,
> > > > > > > > Almost there ! I have the Host Processor board and
> > > > > > > > Mezzanine built now. Power up is smokeless and D1 on the
> > > > > > > > mezzanine illuminates :-) I'll build the backplane
> > > > > > > > tommorrow night and hopefully i'll start to see some
> > > > > > > > output when the disk i/o and floppy connected. Just a
> > > > > > > > couple of questions; What are the jumper settings on the
> mezzanine i/o brd and backplane?
> > > > > > > > Is the same serial cable used as with the N8VEM?
> > > > > > > > Does the oscillator for the 6502 need to be an exact value
> > > > > > > > ie 1mhz or 2mhz, i only have a 1.8432 on hand.
> > > > > > > > Sorry abut all the questions !
>
> > > > > > > > Thanks,
> > > > > > > > Nik
>
> > > > > > > > On Jun 6, 8:47 am, "Dan Werner" <danwerne...@gmail..com>
> wrote:
>
> > > > > > > > > I just uploaded the "Quick Start" archive for DOS/65 on
> > > > > > > > > the 6x0x host processor board. (DOS65 serial- stand
> > > > > > > > > alone-Quick
> > > > > > > > > Start_06052011.zip) It includes a ROM image, a bootable
> > > > > > > > > 720K floppy image, instructions, and
> > > > > > > all of
> > > > > > > > > the source code.
>
> > > > > > > > > Please let me know if anyone has any problems getting it
> > > > > > > > > to
> > run!
>
> > > > > > > > > Thanks!
>
> > > > > > > > > Dan Werner
>
> > > > > > > > > -----Original Message-----
> > > > > > > > > From: n8...@googlegroups.com
> > > > > > > > > [mailto:n8...@googlegroups.com] On Behalf
> > > > > > > Of
>
> > > > > > > > > Andrew Lynch
> > > > > > > > > Sent: Monday, May 23, 2011 7:36 PM
> > > > > > > > > To: n8...@googlegroups.com
> > > > > > > > > Subject: RE: [N8VEM: 10076] DOS/65
>
> > > > > > > > > Woo Hoo! Thanks Dan! That's great!
>
> > > > > > > > > Dan, I am so glad to see you are still chipping away at
> > > > > > > > > it even though I know you are really busy with the new job!
>
> > > > > > > > > Please all the 6x0x builders let's give DOS/65 a try!
>
> > > > > > > > > Note DOS/65 is a CP/M like operating system for the 6502
> > > > > > > > > and uses a compatible file system. I think it was
> > > > > > > > > written by none other than our
> > > > > > > own
> > > > > > > > > Rich Leary who is active on the N8VEM S100 side.
>
> > > > > > > > > I am working with Rich on making an S-100 6502 CPU board
> > > > > > > > > at the moment
> > > > > > > and
> > > > > > > > > the initial prototype board should be here soon!
>
> > > > > > > > > Thanks and have a nice day!
>
> > > > > > > > > Andrew Lynch
>
> > > > > > > > > > -----Original
>
> ...
>
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