> On Feb 9, 2021, at 5:24 PM, Noel Chiappa via cctalk
> wrote:
> BTW, your neat hack to do that only works on the RK11-C, and not the RK11-D:
> the latter doesn't implement 'Read/Write-All'.
Yup -- this is one of the lesser-known advantages of the RK11-C over the later
controllers. Another
> From: Fritz Mueller
> In at least one case of attempting to recover a pac
BTW, your neat hack to do that only works on the RK11-C, and not the RK11-D:
the latter doesn't implement 'Read/Write-All'.
Noel
> the Unix V6 RK pack formatter ... sets _both_ 'Format' and
> 'Read/Write-All
Oooops; my bad; I mis-read the register description. It's setting 'Inhibit Bus
Address Increment' and 'Format', not 'Format' and 'Read/Write-All'. So ignore my
speculation about 'Read/Write-All' not getting the
> On Feb 9, 2021, at 9:27 AM, Noel Chiappa via cctalk
> wrote:
> ... the Unix V6 RK pack formatter ...
> sets _both_ 'Format' and 'Read/Write-All', and _doesn't_ set up the sector
> header words in the memory buffer, arguing that even with 'Read/Write-All' on,
> the hardware is still
> Fron: Jon Elson
> The write all function is likely how you format a blank pack.
No, 'Format' is a separate bit in the CSR from 'Read/Write-All', and they do
different things.
The RK11 always re-writes the header word of each sector when it writes a
sector in normal operation; when
On 02/08/2021 11:37 PM, Ethan Dicks via cctalk wrote:
On Mon, Feb 8, 2021 at 10:22 PM Fritz Mueller via cctalk
wrote:
On nice thing about this controller is that it supports "Read/Write All" mode,
which
lets you read or write the raw bitstream including block headers. This can be
useful
> From: Ethan Dicks
> I do have a replica KM-11 set that I need to construct.
You'll need the RK11-C overlays (shown on pg 6-2 of the RK11-c Manual). (My set
of overlays from Guy with his KM11 replica included them; thanks Guy :-).
> From: Fritz Mueller
> The cables are
I have two backplanes and a diablo drive if anyone is interested.
Paul
On Mon, Feb 8, 2021 at 11:38 PM Ethan Dicks via cctalk <
cctalk@classiccmp.org> wrote:
> On Mon, Feb 8, 2021 at 10:22 PM Fritz Mueller via cctalk
> wrote:
> > Yup, RK11-C, and it seems complete (modulo drive cables and
>
On Mon, Feb 8, 2021 at 10:22 PM Fritz Mueller via cctalk
wrote:
> Yup, RK11-C, and it seems complete (modulo drive cables and terminators.) I
> have
> one debugged and running in my '11/45, so I know it well.
I've had one for years but I haven't tried working on it yet.
> > On Feb 8, 2021, at
Yup, RK11-C, and it seems complete (modulo drive cables and terminators.) I
have one debugged and running in my '11/45, so I know it well.
> On Feb 8, 2021, at 3:16 PM, Ethan Dicks via cctalk
> wrote:
> The ribbon cables are a bit out of place... perhaps they were just
> stuffed into empty
Degnan via cctalk
wrote:
If you search ebay for "DEC RK11-C Disk Controller", you'll find a listing
of a backplane of flipchip cards, but it's not like any RK11-C I have ever
seen. Am I right, this is a mis-labeled auction?
It seems to match fairly well with the module layout for the sta
I suppose I am...
On Mon, Feb 8, 2021, 6:14 PM Guy Sotomayor via cctalk
wrote:
> It looks like it could be an RK11-C. Are you possibly thinking of the
> RK11-D which fits in a BA11 chassis?
>
> TTFN - Guy
>
> On 2/8/21 2:53 PM, Bill Degnan via cctalk wrote:
> > If you s
On Mon, Feb 8, 2021 at 5:53 PM Bill Degnan via cctalk
wrote:
> If you search ebay for "DEC RK11-C Disk Controller", you'll find a listing
> of a backplane of flipchip cards, but it's not like any RK11-C I have ever
> seen. Am I right, this is a mis-labeled auction?
It seems t
It looks like it could be an RK11-C. Are you possibly thinking of the
RK11-D which fits in a BA11 chassis?
TTFN - Guy
On 2/8/21 2:53 PM, Bill Degnan via cctalk wrote:
If you search ebay for "DEC RK11-C Disk Controller", you'll find a listing
of a backplane of flipchip cards
If you search ebay for "DEC RK11-C Disk Controller", you'll find a listing
of a backplane of flipchip cards, but it's not like any RK11-C I have ever
seen. Am I right, this is a mis-labeled auction?
Bill
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