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| flashing RR's the FlashROM http://retrohackers.org/viewtopic.php?f=4&t=25 |
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| Author: | hannenz [ Thu Jan 12, 2006 1:12 pm ] |
| Post subject: | flashing RR's the FlashROM |
Is there someone who could post a little more detailed info about flashing the FlashROM than in the InsideReplay Article...?! I know that there must be some sequences given to the chip prior writing and so on, and i have read the AMD datasheet (though i didn't understand much...  ) but this is all still quite confusing to me.
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| Author: | groepaz [ Thu Jan 12, 2006 1:49 pm ] |
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what exactly do you miss? the datasheet plus the example code should tell you all you need... |
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| Author: | Xiny6581 [ Thu Jan 12, 2006 2:03 pm ] |
| Post subject: | |
I'd be very happy if I could possible flash my Retro Replay. I've both tried with flash V0.04 and Flash 0.05, but they say no ROM-file can be found. Hmmm, do I have to rename it to a specific name(the romfile) or is it something else? /Xiny6581 
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| Author: | hannenz [ Thu Jan 12, 2006 2:38 pm ] |
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@xiny6581: what RR-board do you have? Iv you have the newer one (red board, revision 2004 or something) you'll FlashUtilities 0.04 & 0.05 won't work. You'll have to use this one: http://noname.c64.org/csdb/release/?id=26276 @groepaz: well, it should be clear, yes. but i am still a bit confuse dof how to use this info. a little example source code for writing to flash would be nice... just to get an idea of how to use it. |
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| Author: | groepaz [ Thu Jan 12, 2006 3:16 pm ] |
| Post subject: | |
mmmh isnt that in jens' docfile? *shrug* the basic idea is that you write a special "magic" code to a special adress (the 5555/2aaa stuff) to put the flash into command mode, then send a command, then data, and repeat the whole thing until done. i'll check if i can find a simple example in the flashutil source .... |
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| Author: | hannenz [ Thu Jan 12, 2006 3:45 pm ] |
| Post subject: | |
that would be nice.... |
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| Author: | groepaz [ Thu Jan 12, 2006 4:02 pm ] |
| Post subject: | |
ok two snippets: Code: ;-------------------------------------------------- ; erase single sector ... X MUST have the bankvalue! ssectorerase: LDA #$11 STA $de01 ;set bank LDA #$aa STA $9555 ;this is a write to $5555 of the chip - cycle one LDA #$09 STA $de01 ;set bank LDA #$55 STA $8aaa ;this is a write to $2aaa of the chip - cycle two LDA #$11 STA $de01 ;set bank LDA #$80 STA $9555 ;write $80 to $5555 - cycle four LDA #$11 STA $de01 ;set bank LDA #$aa STA $9555 ;this is a write to $5555 of the chip - cycle five LDA #$09 STA $de01 ;set bank LDA #$55 STA $8aaa ;this is a write to $2aaa of the chip - cyclce six ; - unlock sequence complete ;-------------------- each of the sector erases need to happen within ;-------------------- 50 microseconds after the last erase command STX $de01 ;set sector you wish to erase LDA #$30 STA $8000 ;erase the sector SA/30 and Code: ;========================================================= ; X has bank - y has data - $fa/$fb have address byteprogram: LDA #$11 STA $de01 ;set bank LDA #$aa STA $9555 ;this is a write to $5555 of the chip LDA #$09 STA $de01 ;set bank LDA #$55 STA $8aaa ;this is a write to $2aaa of the chip LDA #$11 STA $de01 ;set bank LDA #$a0 STA $9555 ;write $a0 to $5555 STX $de01 ;set bank you desire tya ldy #$00 STA ($fa),y ;write to address you wish to write hope that gives you an idea of how it works |
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| Author: | hannenz [ Thu Jan 12, 2006 5:26 pm ] |
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yep, thanx a lot! I'll try this out. if talking about sectors this is 16K am i right?? |
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| Author: | Xiny6581 [ Thu Jan 12, 2006 6:23 pm ] |
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re:hannenz Yes, I've the new "Red Board 2004" rev. I just got Contiki downloading the .prg file from the link you posted 
Hopefully this will work. |
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| Author: | groepaz [ Thu Jan 12, 2006 6:35 pm ] |
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Quote: if talking about sectors this is 16K am i right??
dunno :=) the datasheet should tell you...
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| Author: | GRG/Shape [ Thu Jan 12, 2006 10:26 pm ] |
| Post subject: | Flashing other roms |
This might have been asked elsewhere but: Is it possible to flash older Action Replay roms onto the RR cart ? Or even better, the Action Replay 5 ntsc rom ? GRG |
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| Author: | groepaz [ Thu Jan 12, 2006 11:00 pm ] |
| Post subject: | |
yes ofcourse, whatever rom image works on original AR hardware should also work on the RR hardware. |
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| Author: | Xiny6581 [ Fri Jan 13, 2006 12:24 am ] |
| Post subject: | |
Allright people. Now everything is working the way I want it. RR/TFR+RR-Net and I even managed to flash the ROM, with the tool that was suggested. After two days of work this is what I came up with: http://www.6581.org/rr/ Thanks for all the help and support! Best regards, Xiny6581
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| Author: | RaveGuru [ Fri Jan 13, 2006 10:20 am ] |
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Great article! Thanks for sharing your sweat and tears with us! 
Hope you don't mind if I put this up in the File archive? Keep it up! |
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| Author: | Graham [ Fri Jan 13, 2006 11:09 am ] |
| Post subject: | Re: Flashing other roms |
GRG/Shape wrote: This might have been asked elsewhere but:
Is it possible to flash older Action Replay roms onto the RR cart ? Or even better, the Action Replay 5 ntsc rom ? Yes ofcourse, but why would anyone do that? It's a waste of RR hardware if you just use it as normal AR. |
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