Trying to get my RLV11 working

Ben Sinclair ben at bensinclair.com
Thu Oct 29 08:39:34 CDT 2015


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


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