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how do i read sst 27sf512 on a willems?

Old 06-07-2007, 06:51 PM
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Default how do i read sst 27sf512 on a willems?

how do i set the jumpers and dip?

thanks.
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Old 06-08-2007, 10:09 AM
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Default 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
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Old 06-09-2007, 01:52 PM
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Default Re: how do i read sst 27sf512 on a willems?

Originally Posted by lkailburn
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

well... there isnt much to check.

cant somone help?
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Old 06-09-2007, 09:26 PM
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Default 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.


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Old 06-10-2007, 05:01 PM
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Default 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.
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Old 06-10-2007, 05:09 PM
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Default Re: how do i read sst 27sf512 on a willems?

Originally Posted by racepak
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.
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.
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Old 06-11-2007, 11:14 AM
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Default Re: how do i read sst 27sf512 on a willems?

Originally Posted by slo_crx1
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.
yup thats correct

-Luke
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Old 06-12-2007, 08:25 PM
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Default Re: how do i read sst 27sf512 on a willems?

Having same problems with 27sf512..!
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Old 06-13-2007, 12:54 AM
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Default Re: how do i read sst 27sf512 on a willems?

Originally Posted by Octanox
Having same problems with 27sf512..!
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.
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