how do i read sst 27sf512 on a willems?
 

how do i set the jumpers and dip?

thanks.

Re: how do i read sst s1512 on a willems?
 

lol, nice search results I got looking up your chip

http://img179.imageshack.us/img179/3131/sstjm9.jpg

Re: how do i read sst 27sf512 on a willems?
 

the burning program SHOWS YOU A PICTURE of the jumper settings!! ::)

haha nah actually it took me a few tries to realize what it was showing me but the software actually shows you a picture of the jumper layout, match the layout, check the box (telling the software 'yes i set the jumpers') then read.

-Luke

Re: how do i read sst 27sf512 on a willems?
 

well... there isnt much to check.

cant somone help?

Re: how do i read sst 27sf512 on a willems?
 

You want the dip and jumper settings for which chip? The thread title says SST 27sf512, but what you posted is totally different. Here's the settings for s 27sf512 though anyway...

DIP switches, starting from 1 and going to 12... (on=up, off=down)
off, off, on, off, on, off, on, on, on, off, off, off
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

As for the jumpers, there's usually a picture diagram at the top of the board next to the eprom socket...SST's are setup like this...
(top of board)
. . < jumper these 2 on right hand side
. . < together when erasing only
== <..........jumper

== <..........jumper
. .
. .
. .


And remember to set the hex offset to 8000 when burning a single .bin file to a 512 chip. Hope this helps.

Re: how do i read sst 27sf512 on a willems?
 

thanks fot the help.

thats exactly how my willems is set.

its reading it and i can save thr file but whem i'm tryint to open it in crome it pops a window that says crome cant open this file or somthing.

Re: how do i read sst 27sf512 on a willems?
 

Ahh...that's because the normal 256 chip is only a 32 kb memory. The 512's are a 64 kb, that's why Crome can't read it. You need to download a hex editor and pretty much condense it down to 32 kb size by deleting all the blank spaces (usually shows as "y"s or 0's). Or copy and paste from 8000 bits on and create a new hex file using that.

Re: how do i read sst 27sf512 on a willems?
 

yup thats correct

-Luke

Re: how do i read sst 27sf512 on a willems?
 

Having same problems with 27sf512..!

Re: how do i read sst 27sf512 on a willems?
 

I already explained it above. I have not seen any honda rom editor yet that can open a 64kb .bin file. It has to be 32kb. SST27sf512's are capable of carrying 2 seperate maps on them, which makes them worthwhile with the moates 2-timer or a homebrew equivelent. However, when you copy the .bin file off the 512 chip, it will always come up as a 64kb file...regardless if there was only a 32kb file burned on originally. This is why the 512's hex address starts at 0000 and goes to FFF0. A standard 32kb eprom (i.e. SST 27sf256) only goes from 0000 to 7FF0, which is also why on the 512's in order to burn a single map on there you need to set the hex offset to 8000.

In short, hex is fun. :D

Re: how do i read sst 27sf512 on a willems?
 

any idea where to get this hex editor??
i saved my burn from before, but now i need to read the chip, cause i didn't know whitch one was the one i used.. :-\

Re: how do i read sst 27sf512 on a willems?
 

its called NOTEPAD hahaha

just open the bin file in notepad and delete all the funny y's. new bin should be 32K

-Luke

Re: how do i read sst 27sf512 on a willems?
 

Re: how do i read sst 27sf512 on a willems?
 

Ehh, not all the time. Last time I tried notepad it kept saving it as a damn .txt file >:(
I just downloaded a free hex editor called HHD. Any quick search will usually pop up something that'll work just fine.

Re: how do i read sst 27sf512 on a willems?
 

in notepad when you choose save as, change where it says "save as type" from txt to all files. then you can save it as a .bin

-Luke

Re: how do i read sst 27sf512 on a willems?
 

Maybe that's why...my computer has the XP pro wordpad bullshit. :P

Re: how do i read sst 27sf512 on a willems?
 

haha, you still have notepad in xp pro. btw i hope we helped out the orig poster

-Luke

Re: how do i read sst 27sf512 on a willems?
 

so did that ----, but the bins that open look fucked up. like in the Rpm column the first is 750, then 540, then 650??
what the ----? did i do something wrong???

Re: how do i read sst 27sf512 on a willems?
 

is this a bin that you burned to the chip originally?

-Luke

Re: how do i read sst 27sf512 on a willems?
 

no, i found the one i burned to it and it wasn't the same. whats goin on here? am i ------ up on the deleting y's out the the bin?(doesn't seem to be that hard)

Re: how do i read sst 27sf512 on a willems?
 

so you have a bin, you burned it to the chip. then you read the data off the chip to a new bin, deleted the y's and compared the two and they were not the same?

is that what is going on? im trying to make it more clear.

-Luke

Re: how do i read sst 27sf512 on a willems?
 

If you email the bin to my screename @yahoo.com, I'll open it in Prog-Studio and delete the offset. Then return it to you.

I don't know anything about editing roms in notepad. I have used prog-studio and didnt ---- it up, cause you just type in a start and stop addy to remove. then compare it to the original bin (preburn with no offset) and it will tell you any differences.

Re: how do i read sst 27sf512 on a willems?
 

i'll do that when i get home(at werk now) thanks

Re: how do i read sst 27sf512 on a willems?
 

Yeah, I've never had any issues using my hex editor either to erase the blank code. I just erase the blanks, copy the rest of the info, and paste it into a new .bin file so I can start at the 0000 mark.

Re: how do i read sst 27sf512 on a willems?
 

i've never had any issues with notepad. but let us know what works

-Luke

Re: how do i read sst 27sf512 on a willems?
 

do i have to get rid of ALL of the y's cause i still leave some a tthe bottom??

Re: how do i read sst 27sf512 on a willems?
 

you need to get rid of all the y's that make up the offset, or everything up to the 8000h address that you start at. I have no clue how many that is which is why i just tell it an address in a hex editor.

Re: how do i read sst 27sf512 on a willems?
 

nope you want to get rid of all of the y's in the beginning. think of the file as 2 big chunks. first chunk is blank, second is all your data.

-Luke

Re: how do i read sst 27sf512 on a willems?
 

could that be ------- up the map???

Re: how do i read sst 27sf512 on a willems?
 

host up the bin file, the 64k one. i'll take a look for you

-Luke