At 19:09 -0700 08/13/2002, Bolton Peck wrote: >Well they aren't very forthcoming with it, but I think the file >MistralDrv1.31.bin is the one in question, its 66Kbytes in size, the same >size as the MistralDrv1.31.bin file from the 'previous drivers' section of >Matrox' website. So 66K x 8 = 528Kbits. So I need a bigger ROM on the >card then, I think that's what is going on. Would it be a 1Mbit ROM?
What kind of package is the old ROM in? That'll give us a hint of whether you can sub a 1 Mb chip. Ah, I read ahead to your next message. 32 pin 9X7 PLCC. There's a good chance a 1 Mb chip will work. The datasheet is available here: http://batronix.com/pdf/28F256.pdf Ooops, okay, it finished downloading and that is a poor datasheet. I don't think that's the correct one for your chip. Hmmm. Try this: http://us.st.com/stonline/books/pdf/docs/4727.pdf Now the interesting thing about the second one is that it is listed as M28256 with no F. But ICmaster.com definitely claims that ST Micro did an M28F256 and this is the only datasheet that ST Micro has on their site for such a part as far as I can tell. Is there a logo on the chip? You might use icmaster's logo finder function to identify the manufacturer. It could be Intel. Apparently, they use M sometimes. The datasheet contains a pinout. Typically, if your smaller EEPROM or Flash has the same pin arrangement except that it's missing the upper address pins (2 pins in this case) then you can usually substitute the larger capacity EEPROM or Flash on the board, provided that the card manufacturer actually did implement the higher address pins on your card, and, again, provided you don't get bit by some finicky detail about sector size or boot sector location or something. Jeff Walther -- SuperMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | Service & Replacement Parts [EMAIL PROTECTED] | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> SuperMacs list info: <http://lowendmac.com/supermacs/list.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/supermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
