More 315-5313 unknown stuff (speculation)
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Tested pins [18-25, 120-127] in the same way.
[18-25] - showed noise in the lower part VBlank, below raster (I have PAL console).
[120-127] - showed noise similar to the noise of buses M68K.
Nothing reminds raster. Just VDP has dividers of master clock frequency (I have models with 17,7MHz quartz directly on pins VDP). So, not bad to be included sketches of the VDP circuit in the device "The System C2."
[18-25] - showed noise in the lower part VBlank, below raster (I have PAL console).
[120-127] - showed noise similar to the noise of buses M68K.
Nothing reminds raster. Just VDP has dividers of master clock frequency (I have models with 17,7MHz quartz directly on pins VDP). So, not bad to be included sketches of the VDP circuit in the device "The System C2."
Last edited by HardWareMan on Wed Jan 09, 2008 12:24 pm, edited 1 time in total.
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You want photos of system C2 arcade board? I have some links... please wait
schematics I don't have any...
EDIT
A pirate one: http://www.mameworld.net/maws/img/pcb/tantr.png
Official: http://www.mameworld.net/maws/img/pcb/puyopuy2.png
http://www.mameworld.net/maws/img/pcb/puyo.png (Low-Res)
Right-click on the links and save target as
High-Resolution pirate (equal to the first one)
http://www.citylan.it/tantrbl3/PCB%20co ... 20side.jpg
The SE-93 is a pirate VDP, TmEE has one in his megadrive (check his website if you don't beleive me)
Also I emailed Charles MacDonald about where those pins (120-127) are leading, but I suspect they are connected to the 2 Srams in the arcade board and a triple DAC... but i'm still waiting for a reply
schematics I don't have any...
EDIT
A pirate one: http://www.mameworld.net/maws/img/pcb/tantr.png
Official: http://www.mameworld.net/maws/img/pcb/puyopuy2.png
http://www.mameworld.net/maws/img/pcb/puyo.png (Low-Res)
Right-click on the links and save target as
High-Resolution pirate (equal to the first one)
http://www.citylan.it/tantrbl3/PCB%20co ... 20side.jpg
The SE-93 is a pirate VDP, TmEE has one in his megadrive (check his website if you don't beleive me)
Also I emailed Charles MacDonald about where those pins (120-127) are leading, but I suspect they are connected to the 2 Srams in the arcade board and a triple DAC... but i'm still waiting for a reply
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SE-93 is like the best pirate VDP chip ever, but unfortunately my MD clone is dead (stupid 7805 fried and killed everything with it).
All is 100% pin compatible, and 100% same in function.
All is 100% pin compatible, and 100% same in function.
Mida sa loed ? Nagunii aru ei saa
http://www.tmeeco.eu
Files of all broken links and images of mine are found here : http://www.tmeeco.eu/FileDen
http://www.tmeeco.eu
Files of all broken links and images of mine are found here : http://www.tmeeco.eu/FileDen
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I just sent a rom to HwMan, so he can tell me what's on those pins, but I won't release it yet because i'm using the font from hacking cult or devega, and I want to draw my own...
Are you sure the SE-93 is dead? Damn, I once supplied 7.2V to the MD for some minutes, and my original sega vdp did run very hot and it's still alive and kicking... (to payoff, it runs now at a miserable 3.65V, always cold)
Are you sure the SE-93 is dead? Damn, I once supplied 7.2V to the MD for some minutes, and my original sega vdp did run very hot and it's still alive and kicking... (to payoff, it runs now at a miserable 3.65V, always cold)
Last edited by Jorge Nuno on Sat Feb 02, 2008 1:23 pm, edited 2 times in total.
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I know this. Also SE-93 = TA-06; SE-95 = TA-04 + TA-05 and SE-95 = TA07 = YM2612.Jorge Nuno wrote:The SE-93 is a pirate VDP, TmEE has one in his megadrive (check his website if you don't beleive me)
I begin test right now!Jorge Nuno wrote:I just sent a rom to HwMan, so he can tell me what's on those pins, but I won't release it yet because i'm using the font from hacking cult, and I want to draw my own...
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It not starts. I guess you do wrong hardware initialization (or do not at all). I did same mistake, when began make own programms for MD. Do this:
Waiting for fixed one.
Code: Select all
*Boot code
move.l sp,a7
move.w #$2700,sr
tst.l $a10008.l
bne.s SkipJoyDetect
tst.w $a1000c.l
SkipJoyDetect:
Bne SkipTable
lea Table(pc),a5
movem.w (a5)+,d5-d7
movem.l (a5)+,a0-a4
move.b -$10ff(a1),d0 *Version number
andi.b #$0f,d0
beq.s WrongVersion
move.l #$53454741,$2f00(a1) *Security code (SEGA)
WrongVersion:
move.w (a4),d0
moveq #$00,d0
movea.l d0,a6
move a6,usp
moveq #$17,d1 *VDP setup
FillLoop:
move.b (a5)+,d5
move.w d5,(a4)
add.w d7,d5
dbra d1,FillLoop
move.l (a5)+,(a4)
move.w d0,(a3)
move.w d7,(a1)
move.w d7,(a2)
L0250: btst d0,(a1)
bne.s L0250
moveq #$25,d2 *Init A00000
Filla: move.b (a5)+,(a0)+
dbra d2,Filla
move.w d0,(a2)
move.w d0,(a1)
move.w d7,(a2)
L0262: move.l d0,-(a6) *Zero RAM
dbra d6,L0262
move.l (a5)+,(a4)
move.l (a5)+,(a4)
moveq #$1f,d3 *Init C00000
Filc0: move.l d0,(a3)
dbra d3,Filc0
move.l (a5)+,(a4)
moveq #$13,d4 *Init C00000
Fillc1: move.l d0,(a3)
dbra d4,Fillc1
moveq #$03,d5 *Init C00011
Fillc2: move.b (a5)+,$0011(a3)
dbra d5,Fillc2
move.w d0,(a2)
movem.l (a6),d0-d7/a0-a6
move #$2700,sr
tst.w $00C00004
jmp SkipTable
Table: dc.w $8000,$3fff,$0100,$00a0,$0000,$00a1,$1100,$00a1
dc.w $1200,$00c0,$0000,$00c0,$0004,$0414,$302c,$0754
dc.w $0000,$0000,$0000,$812b,$0001,$0100,$00ff,$ff00
dc.w $0080,$4000,$0080,$af01,$d91f,$1127,$0021,$2600
dc.w $f977,$edb0,$dde1,$fde1,$ed47,$ed4f,$d1e1,$f108
dc.w $d9c1,$d1e1,$f1f9,$f3ed,$5636,$e9e9,$8104,$8f01
dc.w $c000,$0000,$4000,$0010,$9fbf,$dfff
SkipTable:
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I have an clone, that have no BIOS. That is correct, BIOS do init itself (TMSS), but most of clones have no BIOS. Second round...Jorge Nuno wrote:Did it show the bios message?
Or you have no bios?
I'm trying to manually fix it... if that doesn't work then I will copy the init code
Rom sent...
***Not working. Can you just copy code above?
You even don't send "SEGA" in security register...
Code: Select all
move.l #$53454741,$2f00(a1) *Security code (SEGA)
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Code: Select all
START:
NOP
NOP
MOVEA.l #$A11100, a0
MOVE.b -$10ff(a0), d0
ANDI.b #$0f, d0
MOVE.l ($000100), $2F00(a0)
BEQ Versao0
Versao0:
I'm copying your code now...
EDIT: Done
LOL the BEQ should be after the ANDI, OMGLOL
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Actually not... but the system didn't boot anymore that's for sure. After burnout, I cleaned the board of most components, but I kept the chips for "nostalgic" reasons... if I get another MD which is not in very good condition, I'll try to see if the chip works, they're so easy to solder to /get off from board. But I doubt it works since the 7805 that fried was connected to digital parts, the other that didn't fry is for analog parts of the chips (AFAIK).Jorge Nuno wrote:Are you sure the SE-93 is dead? Damn, I once supplied 7.2V to the MD for some minutes, and my original sega vdp did run very hot and it's still alive and kicking... (to payoff, it runs now at a miserable 3.65V, always cold)
Mida sa loed ? Nagunii aru ei saa
http://www.tmeeco.eu
Files of all broken links and images of mine are found here : http://www.tmeeco.eu/FileDen
http://www.tmeeco.eu
Files of all broken links and images of mine are found here : http://www.tmeeco.eu/FileDen
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H0ly $hit!! It seems I figured out the bit that enables the VDP digital output, OMG!!!, you mean the intro didn't show up on pins 120-127???HardWareMan wrote:LOL. There (on [120-127]) really have an VIDEO. And it remind an index of color. But on [18-25] still quiet. Maybe its activated on CRAM loads?Jorge Nuno wrote:At last LOL, and the pins?
By the way: pins actived only on "sky". On text no moves there.
What do you think?
Please put the "sun" onscreen and watch SPA/B, pin 40
Also forget pins 18-25 for now, I think they are a digital audio output...