Trying to get my RLV11 working

[Ben Sinclair]

Assuming I eventually get the controller working, I started looking at
my cabling and I don't think I have what I need to hook up the drive.
A while back I was talking to someone else who suggested using a
ribbon cable from the controller to directly inside the drive. That
technically will fit if I remove the ribbon inside the drive that goes
to the external connectors, but then I won't have a terminator
installed. I do have a terminator though!

I think what I really need, since I don't have a cab kit or anything,
is a bc80m, which I believe is a ribbon with a ground lug on the
controller side, and whatever type of connector the drive uses on the
other end. Is that correct? Not that I can even find a cable like that
anywhere currently...

On Thu, Oct 29, 2015 at 8:39 AM, Ben Sinclair <ben at bensinclair.com> wrote:
> Moving the boards after before the DLV-11 was an attempt to see if
> Noel's idea around the DLV-11 not passing the grant might have been an
> issue, so not completely random! However, I've been guilty of plenty
> of random testing before!
>
> I unfortunately don't have an extender card... I just searched eBay
> for a few things, but didn't see any. Do they have a part number or
> some other description that I might look for?
>
> On Wed, Oct 28, 2015 at 5:37 PM, Johnny Billquist <bqt at update.uu.se> wrote:
>> Even better. Sorry for writing responses without checking what else is in my
>> inbox. I've caught up now, though.
>>
>> And you definitely look like you got a stuck bit in there.
>> All of the errors show expected and received data, and in all cases bit 13
>> is on while it shouldn't be.
>>
>> Could be a bad bus driver, a bad connection, or something more funny. But
>> start with the obvious ones. Do you have any extender cards so that you can
>> access the card with the power on, and measure signals. Checking the source
>> of bit 13 on output and trace if the signal is always on somewhere would be
>> a good exercise.
>>
>> Do someone remember if there are some register in the RLV11 that can be
>> written and read back getting the same data out again? That could also be
>> interested to test things with...
>>
>>         Johnny
>>
>>
>> On 2015-10-28 21:58, Ben Sinclair wrote:
>>>
>>> Thanks John, I think the insanity is my own! After changing those
>>> switches I accidentally put the M8014 above the M8013. I've swapped
>>> them and now get slightly different results:
>>>
>>> One note, it now takes a while for it to start printing anything,
>>> which I think might mean it's running some of the first test
>>> successfully before getting to these. Earlier runs would start
>>> printing errors immediately.
>>>
>>>
>>> CVRLA DVC FTL ERR  00037 ON UNIT 00 TST 032 SUB 000 PC: 023576
>>> RLMP: CRC OF DA+3 ERROR (SERIAL DATA PATH)
>>> CONTROLLER: 174400  DRIVE: 0
>>> BEFORE COMMAND: CS: 112200 BA: 003762 DA: 155552 MP: 175555
>>> TIME OF ERROR:  CS: 000200 BA: 005760 DA: 155560 MP: 175554 171554
>>> EXP'D: 145554 REC'D: 175554
>>>
>>> CVRLA DVC FTL ERR  00038 ON UNIT 00 TST 032 SUB 000 PC: 023634
>>> RLMP: CRC OF CRC OF DA+4 ERROR (SERIAL DATA PATH)
>>> CONTROLLER: 174400  DRIVE: 0
>>> BEFORE COMMAND: CS: 112200 BA: 003762 DA: 155552 MP: 175555
>>> TIME OF ERROR:  CS: 000200 BA: 005760 DA: 155560 MP: 175554 171554
>>> EXP'D: 151554 REC'D: 171554
>>>
>>> CVRLA DVC FTL ERR  00039 ON UNIT 00 TST 032 SUB 000 PC: 023730
>>> MAINT. FILL/EMPTY FIFO DMA DATA TRANSFER COMPARE ERROR
>>> CONTROLLER: 174400  DRIVE: 0
>>> BEFORE COMMAND: CS: 112200 BA: 003762 DA: 155552 MP: 175555
>>> TIME OF ERROR:  CS: 000200 BA: 005760 DA: 155560 MP: 175554 171554
>>> BA: 005760 DA: 155560 ADDR: 004762 EXP'D: 155555 REC'D 175555
>>> BA: 005760 DA: 155560 ADDR: 004764 EXP'D: 155555 REC'D 175555
>>> BA: 005760 DA: 155560 ADDR: 004766 EXP'D: 155555 REC'D 175555
>>>
>>> On Wed, Oct 28, 2015 at 3:46 PM, John Wilson <wilson at dbit.com> wrote:
>>>>
>>>> On Wed, Oct 28, 2015 at 03:40:46PM -0500, Ben Sinclair wrote:
>>>>>
>>>>> Well I just figured out something important...The switch numbers on my
>>>>> board backwards! I was going over the docs again, and noticed that MSB
>>>>> and LSB in their board diagram were on the wrong sides, compared to
>>>>> the switch numbers referenced on the next page. I'm not sure if that's
>>>>> just the way it is, or maybe someone replaced my switches at some
>>>>> point. After changing my switches I can now read 774400, which gives
>>>>> me 144201.
>>>>>
>>>>> The VRLAC0 diagnostic now goes further, but it thinks something is
>>>>> wrong. Now of course I have no idea what it thinks is wrong here!
>>>>
>>>>
>>>> Bit 11 of the CSR seems to be stuck on.  That's the "bad CRC" (or write
>>>> check error) bit ... definitely shouldn't be on after a bus init.
>>>> Maybe look at some other registers to see if that bit's on everywhere
>>>> (possibly bad bus xcvr if so), otherwise some other insanity?
>>>>
>>>> John Wilson
>>>> D Bit
>>>
>>>
>>>
>>>
>>
>>
>> --
>> Johnny Billquist                  || "I'm on a bus
>>                                   ||  on a psychedelic trip
>> email: bqt at softjar.se             ||  Reading murder books
>> pdp is alive!                     ||  tryin' to stay hip" - B. Idol
>
>
>
> --
> Ben Sinclair
> ben at bensinclair.com



-- 
Ben Sinclair
ben at bensinclair.com