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Topic: Flash cart
question (neviksti) (Read 1553
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Trilobite
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Re:Flash cart question
(neviksti)
« Reply
#75 on: Mar 21st a 04:17:26pm » |
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I still don't see the purpose of your uncalled
for attack on neviski... perhaps a rod up
your ass? |
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neviksti
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Re:Flash cart question
(neviksti)
« Reply
#76 on: Mar 21st a 05:11:08pm » |
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Evan G:
>I still don't see the purpose of
your uncalled for attack
>on
neviski... perhaps a rod up your
ass?
Just let it go. He said its
over now.
Thanks pagefault. Your
word seems to be the law around
here.
Hmmm, neviski ... sounds polish :
)
Kurtgrams:
>I will say this
much for Neviksti: amongst all this ... he
>was the only to compliment me.
I
guess this is your way of saying that I'm not
such an evil guy after all. Well, apology
excepted.
Kurtgrams:
>I know a
futile fight when I see one ... You are too
>blind to hear. (I doubt you'll get
that allusion)
I truely have no
idea. Such a strange strange quote
though... You are too blind to hear. It's
one of those things that almost makes sense even
though the words don't fit together.
Can
you tell me where its from and the context of
the story? I got that saying stuck in my
head now and I can't find the answer. I
hope I don't end up using it later when I get
frustated with my lab partner ... he doesn't see
the big picture of what the experiment is trying
to do ... so all my words of explanation fall on
a deaf ear. ... Are you so blind that you
can not hear? Heh..
So, I'd be
interested in the answer. I don't want it
to become one of those brainteasers that just
runs around in the back of your mind til someone
tells you ... curiousity can be a curse
sometimes.
--------------------------
I'm
sorry Catsith2, where were we? The SPC7110
will give you 1MB of data and then
stop?
From the zsnes
source:
;
command mode is loaded to $4818
but only set after writing to both
;
$4814 and
$4815 in any order
So it sounds like you
need to load $00 (mode = increment pointer after
reading $4810) to reg $4818 then load $0000 (no
adjust) into regs $4814,$4815.
Then
the mode will be activated (yes?).
Then set
the ROM pointer to start at $00:0000 (set
$4811-$4813 = $00)
Then read 4MB from $4810
...
is this what you're doing?
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Dokushinsha
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Re:Flash cart question
(neviksti)
« Reply
#77 on: Mar 21st a 05:22:15pm » |
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Oh well, minus as well jump in. You seem
to appreciate a semi-intelligent
conversation/debate, so we minus as well make it
one.
1. I will say this much for
Neviksti: amongst all this ... he was the
only to compliment me.
His intention was
undoubtedly to compliment you, but I see it as a
backhanded compliment, at best. You're
obviously intelligent enough by your manner of
speech, so it's perplexing why you would come up
with such unfounded and moronic
statements.
2. Neviksti's circuit sounded
too expensive and too complicated for such a
simple device. don't know electtonics - too many
parts. don't know programming - what's the point
of using a whole CPU for something so simple?
... I don't know how to program
that!
So... that amounts to a whole lot
of knowing absolutely nothing, then... You
don't know electronics or engineering, you don't
know how to program, and yet you're calling out
arguably one of the more technically gifted
people on this board. Hrm... Maybe I
shouldn't pass judgement on your intelligence
just yet. You've pretty much, throughout
this whole thread, avoided any mention of YOUR
expertise or knowledge with regards to circuit
design.
3. I'd really like to know your
design to get one myself.
Thanks.
About all you come off as is
someone who's trying to use others' designs to
dump ROMs. Yet when they seem too
difficult for you to understand, or too
intricately designed, you complain.
4.
how come he's added a total of ZERO lines to
zsnes.
... That shows exactly how
much you know about programming ZSNES.
Absolutely or close to nothing. Just
because neviksti hasn't written any code doesn't
mean he hasn't contributed a great deal of time
and effort putting together the designs for the
test cart.
5. So I'd be very interested
in your design. Especially since you
actually built one ... and it works! Neviksti
should stop talking out his butt ;p
...
Again, I'm astounded by your lack of
intelligence. Obviously, you never even
read the posts that Caitsith2 put up, or you'd
have long ago realized her designs were
partially based on neviksti's. Both of
them have contributed to ZSNES, and yet you
single out neviksti for his apparent lack of
contributions.
6. I think he's just a
lamer that pretends to know what he was talking
about.
Kettle... black.
7. I bet
know one understands his technobabble because
its a bunch of phony blathering, but no one's
willing to admit it because they're afraid
they'll look stupid. Well guess what ...
I'll be the first to admit the emperor's wearing
no clothes. There, the secrets out of the
bag ... he's a
know-nothing-boastfull-lamer.
It's
classic how you continually try to chip away at
neviksti, yet on the same hand, chip away at
your rather meager base. Not only are you
admitting you have NO idea whether or not his
specs are real or phony, you basically are doing
the same thing you're accusing everyone else of
doing -- judging without knowing the
truth. A rather pathetic case of
disproving your own argument.
So to
sum everything up, you base your arguments on
the fact that:
a) neviksti is talking in a
language way over your head, that you have no
way of proving or disproving is true or
untrue.
b) Just because there's been no
coding done, a person hasn't contributed to
ZSNES.
c) anomie apparently wrote most of the
code for the test cart, not taking into account
the fact that it's not just coding that goes
into creating a test cart, or that proof is
usually required when throwing around
"facts".
d) When S-DD1 inaccuracies are
brought up, neviksti is wrong because he
disproves them, rather than letting them grow
and propagate.
e) Because S-DD1 hasn't been
cracked, yet neviksti has contributed so much,
apparently, his ideas are bogus and aren't
really helping at all.
f) A cart dumper
designed by neviksti that "doesn't work", was
built later by CaitSith2 and proven to work with
the exception of a physical component flaw (for
your benefit, kurtgrams, something that isn't in
neviksti's control).
* Dokushinsha watches as
kurtgram's arguments fall by the
wayside.
It's amusing how you
continually decide to pick and choose which
points to address. You pick points that
you believe you can successfully dispute, yet
you side step those that are much more difficult
to do so.
As for your
intelligence... well, it's apparent you're
basically a rather uniformed individual, who is
trying to break down someone for reasons
unknown. Intelligent? Hardly.
It takes more to be intelligent than speak or
write in an intelligent manner.
pwned or
smth. |
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PH34R MY L33T
N3KKID SKILLZ!!!
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neviksti
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Re:Flash cart question
(neviksti)
« Reply
#78 on: Mar 21st a 06:02:05pm » |
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Dokushinsha, don't worry about it. He said
he'd drop it ... and I have a feeling that he's
the type that keeps his word (and blows up at
those that
don't).
Dokushinsha:
>...that
Caitsith2 put up, or you'd have long ago
>realized her designs were
...
Ummm, heh. I'm pretty sure that
CaitSith2 is not
female.
--------
OK, kurtgrams ...
I gave up and searched for "too blind to
see". It turns out a group called
"Budapest" released an album by that name.
I couldn't find the reason for the name ... so
it doesn't make much sense as an
allusion.
Also this tab file: http://www.geocities.com/Colosseum/Field/7738/low_blackmonday.txt
listed
the lyrics of:
Song: Black Monday
Band:
Lowest of the Low
which contains this verse
-
....
My friend Kate, you are sad and
beautiful. And the way I am has never been
too
good for us. Cause I'm too blind to
hear and I'm too deaf to see. But I
still
have a voice that can call out your
name with a gut full of beer and a head
full
of pain. I can lie in your arms
and be lovers again and thank God
Tuesday
morning is just hours away, thank God
Tuesday morning is just hours away.
Yeah.
...
Kurtgrams, is the above
song what you were referring to? If so ...
the quote almost seems to lose meaning by
knowing the source. So I'm assuming that I
haven't found it yet.
There are a few
other songs/artists that use this phrase.
As well as several "internet poets", amateur
writers that like to share their thoughts
through poetry on the internet ... some used
that phrase.
I was expecting an
ultimately original source ... like shakespeare
or something. But no luck.
I tried,
now can you tell me the answer? |
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Dokushinsha
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That's Kuonji-san to you,
buster.
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Re:Flash cart question
(neviksti)
« Reply
#79 on: Mar 21st a 06:50:22pm » |
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*chuckles* My apologies to CaitSith2. I
just assumed from the name and avatar...
-_- My bad.
*
Dokushinsha hangs his head. 
As for
my previous post, sorry bout that. I
started writing it before you posted your
post.  |
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CaitSith2
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Re:Flash cart question
(neviksti)
« Reply
#80 on: Mar 21st a 08:34:52pm » |
  |
The avatar is of zidane tribal from final
fantasy 9. The message that sits
underneath it, is his quote for the
game.
-------------------------------------------------------
Neviksti,
the game will actually let me dump the first 2
MBs, then it stops there. I will see what
I can do, to try and get the spc chip to let me
have the other 3 megabytes of the rom.
|
| « Last Edit: Mar
21st a 08:52:10pm by CaitSith2 » |
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CaitSith2
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Re:Flash cart question
(neviksti)
« Reply
#81 on: Mar 21st a 09:42:51pm » |
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I am wanting that PCB more and more. (just got
another wire connection problem, this time
causing the dump to repeat itself for a bit.
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neviksti
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Re:Flash cart question
(neviksti)
« Reply
#82 on: Mar 21st a 10:56:41pm » |
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>Neviksti, the game will actually let me dump
the first 2
>MBs, then it stops
there. I will see what I can do, to
>try and get the spc chip to let me have
the other 3
>megabytes of the rom.
I assume the 2MB come from a normal dump
... and the 3MB left can be accessed only
through the spc chip? I thought you needed
to get 4MB from the chip for some reason ... I
must have misunderstood an earlier
conversation.
>I am wanting that PCB
more and more. (just got
>another wire
connection problem, this time causing the
>dump to repeat itself for a bit.
Yeah, flaky wires can really be a pain
in the ass. I _finally_ got the layout
software I needed from an EE professor, so I
think your wish will come true. However,
it will still take awhile, as I'd like to try to
order the flash cart along with the programmer
board.
I thought about it, and
decided I'd really like to have a nice
board. Since it's unfair to expect you to
pay more because of this decision, I'd like you
to think about it and decide how much you're
willing to pay for the boards. So
basically, I'll let you decide your price.
I trust you, and I don't want to ask you to pay
more than you're willing.
Don't
worry about it now though. After I
actually order the boards, we can see who all
wants to buy one as well, and we'll worry about
money stuff then. The more people, the
cheaper it will be, and hopefully we can just
split the cost evenly among
everyone.
Note to everyone
interested: I really don't have much free
time lately. So it may be awhile before I
get everything ready. Please don't get
impatient. |
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CaitSith2
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Re:Flash cart question
(neviksti)
« Reply
#83 on: Mar 21st a 11:12:18pm » |
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well, I am definitely going to want to build the
flash cart myself, so, I am alright with having
both of the boards
together.
----
on the far east of
eden zero dumping project, the first 2 MBs
are accessed, by sending the optional parameters
into the program.
prog -rfh16
feoezL16.bin
I just now have to trick the
chip into letting me have the upper 3 MBs of the
rom. If I can succeed in dumping the rom
from the cartridge directly, and correctly, that
would be very cool. |
| « Last Edit: Mar
21st a 11:21:22pm by CaitSith2 » |
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Dark
Force
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Re:Flash cart question
(neviksti)
« Reply
#84 on: Mar 22nd a 06:21:44pm » |
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CaitSith was emailing me asking for info/help on
the SPC7110, since a couple other people asked
too I'm pasting my findings here. These are the
guidelines that zsnes emulates the chip
by.
I don't know how to display a fixed
width font in here so just copy and paste this
into notepad because it will look funny without
everything lining up properly.
Cait
mentioned he only dumped the first 2mb of FEOEZ.
Somehow I don't think his 2nd mb worth of data
is correct.
If the copier read any of the
data rom at all, it can read all of it. My guess
is it's the 1st 1mb repeated twice. You should
compare it to the dumped FEOEZ rom.
When
the cart powers up, banks $C0-$CF are mapped to
the program rom and banks $D0-FF are mapped to
the data rom. So like I said, if you can read
properly from $D0, there is nothing stopping you
from reading $E0 and $F0 as well.
See
info below for how to map data rom
banks.
DF
<SPC7110 Info,
Reverse Engineered by Dark Force>
SPC7110
Rom Map
=====================
Far East
of Eden Zero
40mb total: 8mb program rom
(000000-0FFFFF) + 32mb data rom
(100000-4FFFFF)
Super Momotarou Happy
Train
24mb total: 8mb program rom
(000000-0FFFFF) + 16mb data rom
(100000-2FFFFF)
program rom mapped to
$C0:0000-$CF:FFFF/$80:0000-$8F:FFFF
always
data rom in 8mb chunks can be mapped
to hirom areas using the bank mapping regs
($4831/2/3)
default mapping: first 24mb of
data rom mapped to
$D0:0000-$FF:FFFF
SPC7110 Decompression
Ram Map
$50:0000 - $50:FFFF data decompressed
from data rom by spc7110
when reading from
bank $50, the offset address is ignored
($00:XXXX), instead bytes are
always read
sequentially from the start of the bank
($50:0000) after each
new decompression.
register $4800 is linked to the same read index
as reading from bank $50
SPC7110 Sram
Map
$00:6000 - $00:7FFF sram
8k
SPC7110 Mirroring
$xx:4800 -
$xx:7FFF register and sram banks mirrored at $00
- $3F, $80 - $BF
defval: = default
power-on/reset register value
SPC7110
Registers
$4800 DECOMPRESSED DATA
CONTINUOUS READ PORT: returns a decompressed
value from bank $50 and decrements 16 bit
counter value at $4809/A by 1
$4801
COMPRESSED DATA TABLE POINTER: ($0000FF) low
offset, defval:00
$4802 COMPRESSED DATA
TABLE POINTER: ($00FF00) high offset,
defval:00
$4803 COMPRESSED DATA TABLE
POINTER: ($FF0000) bank,
defval:00
$4804 COMPRESSED DATA TABLE
INDEX: index of 32 bit compressed data pointer
(big-endian), defval:00
$4805
DECOMPRESSED DATA OFFSET: ($00FF) low byte of
offset in bank $50, defval:00
$4806
DECOMPRESSED DATA OFFSET: ($FF00) high byte of
offset in bank $50, defval:00
$4807 DMA
CHANNEL FOR DECOMPRESSION, set to match snes dma
channel used for compressed data,
defval:00
$4808 C r/w option, unknown,
defval:00
$4809 COMPRESSION LENGTH
COUNTER: ($00FF) low byte, defval:00
write: set
start counter value low byte
read: get counter
value low byte
auto-increment: after each
sequential read from bank $50
$480A
COMPRESSION LENGTH COUNTER: ($FF00) high byte,
defval:00
write: set start counter value high
byte
read: get counter value high
byte
auto-increment: after each sequential
read from bank $50
$480B DECOMPRESSION
COMMAND MODE: see decompression command modes,
defval:00
$480C DECOMPRESSION FINISHED
STATUS: high bit set = done, high bit clear =
processing, cleared after successful
read,
high bit is cleared after writing to
$4806, $4809/A is set to compressed data length,
defval:00
$4810 DATA ROM CONTINUOUS
READ PORT: returns a byte from data rom at data
rom pointer location, defval:00
$4811
DATA ROM POINTER: ($0000FF) r/w low offset,
defval:00
$4812 DATA ROM POINTER:
($00FF00) r/w high offset,
defval:00
$4813 DATA ROM POINTER:
($FF0000) r/w bank offset, defval:00
bank offset
is zero based from start of data rom: banks
$00-$3f data rom -> $10-$4f full
rom
$4814 DATA ROM POINTER ADJUST:
($00FF) low byte, defval:00
$4815 DATA
ROM POINTER ADJUST: ($FF00) high byte,
defval:00
$4816 DATA ROM POINTER
INCREMENT: ($00FF) low byte,
defval:00
$4817 DATA ROM POINTER
INCREMENT: ($FF00) high byte,
defval:00
$4818 DATA ROM COMMAND MODE:
bit field control of data rom pointer (see data
rom command mode byte), defval:00
write: set
command mode,
read: performs action instead of
returning value, unknown purpose,
command mode
is loaded to $4818 but only set after writing to
both $4814 and $4815 in any order
$481A
DATA ROM READ AFTER ADJUST PORT: returns a byte
from data rom at data rom pointer location +
adjust value ($4814/5), defval:00
$4820
16 BIT MULTIPLICAND: ($00FF) low byte,
defval:00
32 BIT
DIVIDEND: ($000000FF) low byte of low word,
defval:00
$4821 16 BIT MULTIPLICAND:
($FF00) high byte, defval:00
32 BIT DIVIDEND: ($0000FF00) high
byte of low word, defval:00
$4822 32
BIT DIVIDEND: ($00FF0000) low byte of high word,
defval:00
$4823 32 BIT DIVIDEND:
($FF000000) high byte of high word,
defval:00
$4824 16 BIT MULTIPLIER:
($00FF) low byte, defval:00
$4825 16
BIT MULTIPLIER: ($FF00) high byte,
defval:00
$4826 16 BIT DIVISOR:
($00FF), defval:00
$4827 16 BIT
DIVISOR: ($FF00), defval:00
$4828 32
BIT PRODUCT: ($000000FF) low byte of low word,
defval:00
32 BIT
QUOTIENT:($000000FF) low byte of low word,
defval:00
$4829 32 BIT PRODUCT:
($0000FF00) high byte of low word,
defval:00
32 BIT
QUOTIENT:($0000FF00) high byte of low word,
defval:00
$482A 32 BIT PRODUCT:
($00FF0000) low byte of high word,
defval:00
32 BIT
QUOTIENT:($00FF0000) low byte of high word,
defval:00
$482B 32 BIT PRODUCT:
($FF000000) high byte of high word,
defval:00
32 BIT
QUOTIENT:($FF000000) high byte of high word,
defval:00
$482C 16 BIT REMAINDER:
($00FF) low byte, defval:00
$482D 16
BIT REMAINDER: ($FF00) high byte,
defval:00
$482E MUL/DIV SIGN: bit 0: on
= signed calculation, off = unsigned
calculation, defval:00
$482F MUL/DIV
FINISHED STATUS: bit 7: on = processing, off =
finished,
high bit is set after a write to
multiplier or divisor regs $4825/$4827,
defval:00
$4830 SRAM CHIP
ENABLE/DISABLE: bit 7: on = enable, off =
disable, defval:00
$4831 ROM BANK
MAPPING A $D0:0000-$DF:FFFF, see bank mapping
modes, defval:00
$4832 ROM BANK MAPPING
B $E0:0000-$EF:FFFF, see bank mapping modes,
defval:01
$4833 ROM BANK MAPPING C
$F0:0000-$FF:FFFF, see bank mapping modes,
defval:02
$4834 HARDWARE DECOMPRESSION
ENABLE: bit 0: unknown, bit 1: on = enable, off
= disable, defval:00
$4840 RTC CHIP
ENABLE/DISABLE: bit 0: on = enable, off =
disable, defval:00
$4841 RTC INDEX/DATA
PORT:
first write after rtc enable: rtc command
mode byte (see rtc command modes)
subsequent
writes: index of rtc register to read/write
(00-0f)
read: returns value of indexed rtc
register
auto-increment of register index occurs
after each subsequent read/write
$4842
RTC READY STATUS: bit 7: on = ready, off = still
processing, tested before reading rtc
data
high bit cleared after successful
read
Decompression Command
Modes:
00 - manual decompression, $4800 is
used to read directly and sequentially from the
data rom
02 - hardware decompression, data
gets decompressed mapped to $50:0000-$50:FFFF,
$4800 can be used to read sequentially from the
compressed data pointer address
Note:
decompression mode is activated after writing to
$4806 and finishes after reading the high bit of
$480C
Data Rom Command Mode
Byte:
X6543210
||||||||
|||||| \__ : 00
- use 1 as the offset increment value, add
immediately after reading $4810
||||||
: 01 - use $4816 as offset increment, add
immediately after reading $4810
||||||
: 10 - use $4814 as offset increment, see
below for when to add
|||||| :
11 - unused
||||||____ : 0 - unsigned
calculation for $4816
|||||
1 - signed calculation for
$4816
|||||_____ : 0 - unsigned calculation
for $4814
|||| 1 -
signed calculation for $4814
||||______ : 0 -
offset increment gets added to $4811/2/3
|||
1 - offset increment
gets added to $4814/5
| \_______ : 00 -
disable offset addition
|
: 01 - 8 bit offset addition using
$4814, immediately after writing to
$4814/5
| :
10 - 16 bit offset addition using $4814/5,
immediately after writing to $4814/5
|
: 11 - 16 bit offset
addition using $4814/5, only after reading
$481A
|_________ : unused
Note: the
data rom command mode is activated only after
registers $4814 and $4815 have been written to,
regardless of the order they were written
to
Bank Mapping Modes Values for
$4831/2/3:
00 - use data rom 000000-0FFFFF
for mapping
01 - use data rom 100000-1FFFFF
for mapping
02 - use data rom 200000-2FFFFF
for mapping
03 - use data rom 300000-3FFFFF
for mapping
Note: the data rom areas are
mirrored according to rom size, i.e. the value
02 for a 24mb rom means use data rom
000000-0FFFFF
RTC Command
Modes:
03 - normal sequential read/write
mode
0c - sequential read/write mode
2
other commands unknown as of
yet
RTC Registers (8 bit
values): [default values]
00 - seconds
1's digit
00
01 - seconds 10's
digit
00
02 - minutes 1's digit
00
03 - minutes 10's digit
00
04 - hours 1's digit
00
05 - hours 10's digit
00
06 - day of month 1's digit
01
07 - day of
month 10's digit
00
08 - month 1's digit
01
09 - month 10's digit
00
0a - year 1's digit
00
0b - year 10's digit
00
0c - day of week
00
0d - control register
01
0e - control register
0F
0f - control register
06
RTC Control Register
Bits:
Register 0d
XXXXXX10
||_ : 0 - normal timer
operation
|
1 - pause rtc registers updating, time still
increments normally
|__
: 0 - disable rtc interrupts
1 - enable rtc
interrupts
Register
0e
XXXX3210
\\\|_ :
unknown
Register 0f
XXXXX210
|||_ : 0 - normal
|| 1 - stops timer and resets
seconds to 00 (date gets set to 01/01/00
00:00:00 ??)
||__ : 0 - normal
timer operation
|
1 - stop timer
|___ : 0
- 12 hour time, bit 2 of "hours 10's digit"
register contains am/pm bit
(am=0,pm=1)
1 - 24 hour time
|
|
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Re:Flash cart question
(neviksti)
« Reply
#85 on: Mar 22nd a 07:30:05pm » |
|
Darkforce, use the [ code] and [ /code] tags,
remove the spaces though.
Example without
code tag.
RTC Control Register
Bits:
Register 0d
XXXXXX10
||_ : 0 - normal timer
operation
|
1 - pause rtc registers updating, time still
increments normally
|__
: 0 - disable rtc interrupts
1 - enable rtc
interrupts
Code:
Same example, inside the
code tag.
RTC Control Register
Bits:
Register 0d
XXXXXX10
||_ : 0 - normal timer
operation
|
1 - pause rtc registers updating, time still
increments normally
|__
: 0 - disable rtc interrupts
1 - enable rtc
interrupts
| |
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Re:Flash cart question
(neviksti)
« Reply
#86 on: Mar 22nd a 08:05:20pm » |
|
I have essentially concluded what the copy
protection does.
It lets you dump the 1
MB program rom, and the first MB of the data
rom. any attempt to dump anything more
than the first MB, results in the first MB of
data being repeated over and over. (used the
existing dump of the game to compare that 1st MB
of data, against what was in the rom. |
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Re:Flash cart question
(neviksti)
« Reply
#87 on: Mar 22nd a 08:36:19pm » |
|
I succeeded in both reading and writing the save
ram on my far east of eden zero cartridge.
now, I just have to find the right timing to do
so, after enabling the sram read/write register,
to avoid corrupting its contents on reading, and
also on writing. |
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Re:Flash cart question
(neviksti)
« Reply
#88 on: Mar 22nd a 08:42:20pm » |
|
You're welcome.
No, that's not exactly
what the copy protection does, there's much
more. Really it's supposed to prevent you from
reading any of the data rom at all, so perhaps
this is a second line of defense that you
encountered.
Read the rom randomly. I
think it has a linear address read detection
mechanism that makes it think it's being
copied.
DF |
| « Last Edit: Mar
22nd a 08:58:16pm by Dark Force
» |
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Re:Flash cart question
(neviksti)
« Reply
#89 on: Mar 22nd a 09:03:58pm » |
|
While it may be more tedious at the moment, I
can now change the Real time clock on the
cartridge without losing my game saves.
I
simply backup the saves. Go to console, go
in, and reset the RTC, then go back to copier,
and restore the saveram.
The next thing I
want to do now, is implement a method of
directly setting the Real Time Clock into the
copier now.
Update: I found out
that the game does not totally erase the saveram
when you go and set the birthday and real time
clock.
The game only overwrites 7 bytes
in total.
Saveram relative
offsets.
0x20 - Last save game pointer
(1-3 is valid)
0x21 - Save slot 1 (1 if used,
otherwise 0)
0x22 - Save slot 2 (2 if used,
otherwise 0)
0x23 - Save slot 3 (3 if used,
otherwise 0)
0x1D1 - Birth year
(0-99)
0x1D2 - Birth month (1-12)
0x1D3 -
Birth day(1-31)
The 0x20 - 0x23 bytes are
overwritten with 0's
I made the program
rewrite the bytes 0x20-0x23 with 0x01010203, to
restore the saves, once the RTC and birthday has
been set. |
| « Last Edit: Mar
23rd a 04:23:22pm by CaitSith2 » |
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Re:Flash cart question
(neviksti)
« Reply
#90 on: Mar 29th a 12:56:35am » |
|
Neviksti, have you got a PCB design yet? (flaky
wires being a pain in the butt
again).
I rebuilt the power supply,
this time, into a small project box, with a new
power regulator, and heatsink, power switch, and
radioshack's adaptaplug technology (can buy
other plugs, depending on what jack I use in
other projects). The cord coming from the
power supply is about 6 feet long. The
only thing I forgot to hook in, was some kind of
power indicator light, although I could do that
on my snes cart
copier.
----------------------------------------------------------------------
I
also fixed a really stupid bug in the PC side of
the program. The bug involves the program
crashing (this program performed an illegal
operation), when no parameters whatsoever were
supplied.
The fix, was I checked to see
if argc was equal to one, and if it was, exit
the program completely, and cleanly. |
| « Last Edit: Mar
29th a 01:38:05am by CaitSith2 » |
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Re:Flash cart question
(neviksti)
« Reply
#91 on: Mar 29th a 05:18:58pm » |
|
I succeeded in dumping the First MB of the
Program ROM, and the First 3 MBs of the Data Rom
of Far East of Eden Zero.
Now, I will
work on trying to dump the last MB of the Data
ROM. once I succeed in doing that, 7110
chip carts will be removed from the undumpable
(unless you can desolder roms and use a rom
reader) list. I have also been fooling
around with the graphic decompression parts of
the chip as well.
Edit: It seems to
have happened only once. I think the chip
must have received the right timing at just that
exact moment it happened. I have not been
able to repeat that first 4 MB dump
consistently. |
| « Last Edit: Mar
29th a 05:49:06pm by CaitSith2 » |
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Re:Flash cart question
(neviksti)
« Reply
#92 on: Apr 1st a 02:39:12am » |
|
A note when building the flash cart
reader/programmer, concerning the power
supply.
1. Double check that the polarity
is correct on everything in the power
supply.
2. Before hooking the power
supply to the programmer, double check the
output voltage of the supply, and make
absolutely sure that it 5 volts. The atmel
can handle 6.6 volts tops, and the octal latch
can handle 7 volts tops. I accidently
fried both of those when I found that one broken
wire in my power supply caused the output to be
12 volts.
3. If redesigning the
power supply layout, make certain that the
output voltage is still 5 volts. If the
output voltage matches the power supply's input
voltage (mine was 12 volts input), then the
ground wire is most likely not connected to the
power regulator chip's middle ground pin. (I
tried to lay out power supply a little better,
so that it would not overheat, by allowing more
airflow to the heatsink, and failed to make
certain output voltage was still 5
volts.
Im putting these warnings into
place, so that anyone else that decides to build
this project doesn't get hit with the same
errors that killed the most important chips that
this project requires. |
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Re:Flash cart question
(neviksti)
« Reply
#93 on: Apr 1st a 08:44:09pm » |
|
You fried your dumper?
Maybe the solution to
prevent frying would be developing some defense
mechanisms... like if voltage goes too big,
something smaller and cheaper gets broken...
(couldn't remind name of these pieces..  ) |
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Re:Flash cart question
(neviksti)
« Reply
#94 on: Apr 1st a 10:11:08pm » |
|
Quote
from: amd on Apr 1st a 08:44:09pm
You fried your
dumper?
Maybe the solution to prevent frying
would be developing some defense mechanisms...
like if voltage goes too big, something smaller
and cheaper gets broken... (couldn't remind name
of these pieces..
)
| I believe they're
called fuses. |
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Whatever your problem is now
Seifer, I didn't do it.
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Re:Flash cart question
(neviksti)
« Reply
#95 on: Apr 1st a 10:37:12pm » |
|
The problem with fuses is that the ones
available at radioshack are able to handle up to
250 volts or the rated current, whichever comes
first.
basically, the way the cart dumper
fried itself, I might want to find something
that can blow, that is cheap, when voltage
exceeds 6V, and cut power right off to
everything else.
anyways, I can always
get new chips, and that is exactly what I am
doing, this time ordering a 40 pin Zero
Insertion Force socket while I am at it. (make
it easier to use my atmel programmer feature,
for future projects)
Update: I
found the kind of fuse I was looking
for.
0.75A, 6V rated, resettable fuse,
same place where I am ordering replacement chips
for my dumper. This time, I am putting a
99 cent component in as protection for my
circuit. |
| « Last Edit: Apr
1st a 10:50:51pm by CaitSith2 » |
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Re:Flash cart question
(neviksti)
« Reply
#96 on: Apr 1st a 11:08:46pm » |
|
Quote
from: CaitSith2 on Apr 1st a
10:37:12pm
Update: I found the
kind of fuse I was looking for.
0.75A, 6V
rated, resettable fuse, same place where I am
ordering replacement chips for my dumper.
This time, I am putting a 99 cent component in
as protection for my
circuit.
|
Sorry
about interrupting,CaitSith2. I've offered here
some time ago the schematics for SWC... They can
help you in any way? And you can count on me as
one willing to get one of this wonder-thing you
and Neviksti are building...
May the
force be with you. |
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Re:Flash cart question
(neviksti)
« Reply
#97 on: Apr 2nd a 12:30:47am » |
|
The design neviksti made for the current flash
cart reader / writer works very good for reading
cartridges, and modifying save ram on the
cartridges.
Schematics for it online at
((Broken link), Still need to redraw this, as I
lost the source schematic I used while building
this long ago, and I didn't make a backup of the
scan.)
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Re:Flash cart question
(neviksti)
« Reply
#98 on: Apr 2nd a 05:27:47am » |
|
Quote:
Posted by: amd Posted on:
Ce430Mon, 1 Apr 2002 22:44:09 -0500pmMonday
You fried your dumper?
Maybe the solution
to prevent frying would be developing some
defense mechanisms... like if voltage goes too
big, something smaller and cheaper gets
broken... (couldn't remind name of these
pieces.. )
|
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Re:Flash cart question
(neviksti)
« Reply
#99 on: Apr 3rd a 05:26:06pm » |
|
I got my next shipment of parts in, to replace
the chips I had blown.
This time, I
included a 40 pin ZIF socket, for easier
removal/insertion of the atmel chip. also,
some fuses to add in some protection against
blowing the chips with 12 volts. |
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