Re: Major Havoc fluke 9010a rom testing

Success..

After splitting the roms, and running Calcsig on them, then tying the WD
Dis to ground. I was then able to write 00 01 02 etc to 1740 and get the
MMUPAGE0 1 to toggle..

I'm now able to read the paged roms and get the correct sigs.

Just needed to tie the Watchdog to ground..

Guess someone should let quarterarcade know their script is wrong :)

Solved that problem.

Thanks for all the help.

Kevin

On Tue, Jan 22, 2013 at 10:41 PM, Rodger Boots <rlboots2@gmail.com> wrote:

> Make real sure the reset line isn't doing anything. Make sure other
> processor is off board.
>
>
>
> On Tue, Jan 22, 2013 at 10:39 PM, Kevin Moore <talon.k@gmail.com> wrote:
>
>> Yes it is plugged into the alpha socket. You are correct that 1740 is
>> write only.. As of yet, trying to use the fluke to write 00 01 02 etc..
>> hasn't changed the states of the MMUPAGE0 or MMUPAGE1
>>
>> Kevin
>>
>>
>>
>> On Tue, Jan 22, 2013 at 9:21 PM, vectorlist-steve <
>> vectorlist@arcadehacking.com> wrote:
>>
>>> Hey Kevin, you do have the fluke plugged into the "Alpha" (primary)
>>> processor socket right????
>>>
>>> 0x1740 address should be WRITE ONLY according to the mame source and
>>> only latches the two LSB bits.
>>>
>>> http://mamedev.org/source/src/mame/drivers/mhavoc.c.html
>>>
>>> If I have time later I will check one of my MH boards and post the
>>> results.
>>>
>>>
>>>
>>> On 1/22/2013 5:51 PM, Kevin Moore wrote:
>>>
>>> Well, I must be doing something wrong..
>>>
>>> I do a write to 1740 = 00
>>> then do a rom 2000-3FFF
>>>
>>> I come up with a 2057
>>>
>>> Do a write to 1740 = 01
>>>
>>> Rom 2000-3FFF still get 2057
>>>
>>> So then I did a Read at 1740 and it's showing FF no matter what I write
>>> to it.
>>>
>>> This is a known working board that I'm trying to do this on. I should be
>>> able to do this right?
>>>
>>> Kevin
>>>
>>>
>>> On Tue, Jan 22, 2013 at 6:16 PM, Jess Askey <jess@askey.org> wrote:
>>>
>>>> Yes, page 0 and 1 are in one ROM and page 2 and 3 in the other. I
>>>> didn’t think about that. J
>>>>
>>>>
>>>>
>>>> *From:* owner-vectorlist@vectorlist.org [mailto:
>>>> owner-vectorlist@vectorlist.org] *On Behalf Of *Kevin Moore
>>>> *Sent:* Tuesday, January 22, 2013 5:26 PM
>>>>
>>>> *To:* vectorlist@vectorlist.org
>>>> *Subject:* Re: VECTOR: Major Havoc fluke 9010a rom testing
>>>>
>>>>
>>>>
>>>> That's what I was thinking.
>>>>
>>>> But the sigs are for the two roms.. will I need to split the roms, and
>>>> run sig calc on the halves to get the right sigs?
>>>>
>>>> Kevin
>>>>
>>>> On Tue, Jan 22, 2013 at 6:05 PM, Jess Askey <jess@askey.org> wrote:
>>>>
>>>> The 2 ROM’s are broken down into 4 pages… so in order to access them….
>>>>
>>>>
>>>>
>>>> Page 0: Write 00 to 0x1740 then read 0x2000-3fff
>>>>
>>>> Page 1: Write 01 to 0x1740 then read 0x2000-3fff
>>>>
>>>> Page 2: Write 02 to 0x1740 then read 0x2000-3fff
>>>>
>>>> Page 3: Write 03 to 0x1740 then read 0x2000-3fff
>>>>
>>>>
>>>>
>>>> That should do it for you!
>>>>
>>>>
>>>>
>>>> *From:* owner-vectorlist@vectorlist.org [mailto:
>>>> owner-vectorlist@vectorlist.org] *On Behalf Of *Kevin Moore
>>>> *Sent:* Tuesday, January 22, 2013 4:05 PM
>>>> *To:* vectorlist@vectorlist.org
>>>> *Subject:* Re: VECTOR: Major Havoc fluke 9010a rom testing
>>>>
>>>>
>>>>
>>>> I believe you are correct about FFFF being the range of the 6502, which
>>>> makes it all the more odd that Quarter Arcade has such a high address
>>>> listed.
>>>>
>>>> http://tech.quarterarcade.com/tech/VM.aspx?g=1669&set=mhavoc
>>>>
>>>> Probably just a mistake.
>>>>
>>>> The Memory map on the MH Schematics show the Range, and for the Rom/s
>>>> in question the range should be 2000-3FFF but you have to page between the
>>>> two somehow, and that's were I'm failing.
>>>>
>>>> It looks like the address 1740 is used to page between the two roms,
>>>> but since I've never had to do that, I'm unable to verify the roms.
>>>>
>>>> The Rom at 8000-BFFF and C000-FFFF are not paged and I can check just
>>>> fine. Mind you that this is all on the Alpha processor. Not the Gamma I
>>>> haven't gotten that far as of yet.
>>>>
>>>> Kevin
>>>>
>>>> On Tue, Jan 22, 2013 at 3:55 PM, Andre Huijts <a.huijts@upcmail.nl>
>>>> wrote:
>>>>
>>>> Its not outside the Fluke's range, it's outside the 6502 range....8 bit
>>>> processor is FFFF max.
>>>> Or am I missing something ?
>>>>
>>>>
>>>>
>>>> Op 22 jan. 2013 om 21:54 heeft Kevin Moore <talon.k@gmail.com> het
>>>> volgende geschreven:
>>>>
>>>>
>>>> > So I'm trying to work on a major havoc, but I'm not to clear on how
>>>> to run rom checks on the paged roms..
>>>> >
>>>> > Quarter Arcades site has the rom range 10000-13FFF for 136025-215,
>>>> but the address range is outside the flukes range. Looks like to me the
>>>> actually address should start at 2000-3FFF. I'm not at all familiar with
>>>> the MMUPAGE0 addressing.
>>>> >
>>>> > Any pointers, or information I can read?
>>>> >
>>>> > Thanks,
>>>> >
>>>> > Kevin
>>>> >
>>>>
>>>>
>>>> ---------------------------------------------------------------------------
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>>>> chris@westnet.com
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>
>

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Received on Tue Jan 22 23:52:41 2013