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bugman2112
August 11th, 2012, 05:34 PM
Hey guys,

Please dont shoot me for asking a question that i am sure is covered somewhere in this forum. Feel free to direct me to the right thread. I have an unbuilt xt-ide that i want to implement in a 5170. I had two, the first one i got up and running in an XT that i sold. I beleive it is one of hargle's last boards with his last official bios .11? Any help or direction is appreciated.

Maverick1978
August 11th, 2012, 06:57 PM
Google is your friend :) - you could've used "site:vintage-computer.com xt-ide" to have found the Wiki article, (http://www.vintage-computer.com/vcforum/showwiki.php?title=XTIDE+project) which I've hot-linked for you. It should have everything you need - have fun!

lucasdaytona
August 11th, 2012, 06:59 PM
I see that Maverick1978 already stated that (about the wiki)! He is the fastest shooter in the West.
I love the XT-IDE board!

If you still need some help, just ask ;)

evildragon
August 11th, 2012, 07:07 PM
Hey guys,

Please dont shoot me for asking a question that i am sure is covered somewhere in this forum. Feel free to direct me to the right thread. I have an unbuilt xt-ide that i want to implement in a 5170. I had two, the first one i got up and running in an XT that i sold. I beleive it is one of hargle's last boards with his last official bios .11? Any help or direction is appreciated.

I think it was me you sold that board too. I still have it.. For a while I was using the newer rev 2 board, but since it failed I'm back to using the one you sold me.. Works great still to this day. Had to make a small modification to it, wiring VCC up to the pin on the IDE header to allow me to use my disk on module without a power header.

bugman2112
August 11th, 2012, 07:10 PM
I did a quick search under 5170, and only found one entry that seems to be indicating that there might be some BIOS incompatabilities? My newly purchased 5170 is on its way, and the seller told me it had one of the later 3rd party BIOS installed. Perhaps that will help. Also, I need to read more about this "universal BIOS" that now exists for the XT-IDE to see if it is compatable with my board. That wasn't around before when I was working on my first XT-IDE project.
If anyone has some ideas on what I might be up against, let me know. Otherwise I'll post again once I have everything and give it a try.

evildragon
August 11th, 2012, 07:25 PM
I did a quick search under 5170, and only found one entry that seems to be indicating that there might be some BIOS incompatabilities? My newly purchased 5170 is on its way, and the seller told me it had one of the later 3rd party BIOS installed. Perhaps that will help. Also, I need to read more about this "universal BIOS" that now exists for the XT-IDE to see if it is compatable with my board. That wasn't around before when I was working on my first XT-IDE project.
If anyone has some ideas on what I might be up against, let me know. Otherwise I'll post again once I have everything and give it a try.

The universal BIOS works fine on the XT-IDE card you sold me, so it works fine on the old models.. I have to actually use the universal BIOS to access my ROM BASIC.

bugman2112
August 11th, 2012, 08:07 PM
Glad you are getting good use out of that card. I thought I was done with early IBM's, but I am back again. Thanks for the info on the Universal BIOS, that is exactly what I was looking for.

evildragon
August 11th, 2012, 08:25 PM
Glad you are getting good use out of that card. I thought I was done with early IBM's, but I am back again. Thanks for the info on the Universal BIOS, that is exactly what I was looking for.

Not a problem. For FYI, I am using the last stable version of the universal BIOS, not the BETA one.

sergey
August 11th, 2012, 10:36 PM
For an AT you'd better use a regular 16-bit IDE card (not an XT-IDE) such as this one (http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&productId=291901&position=1&category=505005&catalogId=10001&subCategoryName=Computer+Products+%2F+Controller+C ards+%2F+IDE%2FATA&storeId=10001&refine=1&parentCategoryId=5050%24%24505005&categoryName=cat_5050&history=jawuyzjr%7CsubCategoryName%7EComputer%2BPr oducts%5Ecategory%7E50%5EcategoryName%7Ecategory_r oot%5EprodPage%7E15%5Epage%7ESEARCH%252BNAV&ddkey=http:StoreCatalogDrillDownView). In case you'll be using a disk bigger than 528 MB you'll need either a disk manager program or a BIOS extension ROM that supports LBA, such as Universal BIOS. Now for hosting the BIOS extension ROM you can use an XT-IDE card (just the ROM and the 74LS688 that generates ROM /CS), or a network card with an available ROM socket.

bugman2112
August 12th, 2012, 05:37 AM
For an AT you'd better use a regular 16-bit IDE card (not an XT-IDE) such as this one (http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&productId=291901&position=1&category=505005&catalogId=10001&subCategoryName=Computer+Products+%2F+Controller+C ards+%2F+IDE%2FATA&storeId=10001&refine=1&parentCategoryId=5050%24%24505005&categoryName=cat_5050&history=jawuyzjr%7CsubCategoryName%7EComputer%2BPr oducts%5Ecategory%7E50%5EcategoryName%7Ecategory_r oot%5EprodPage%7E15%5Epage%7ESEARCH%252BNAV&ddkey=http:StoreCatalogDrillDownView). In case you'll be using a disk bigger than 528 MB you'll need either a disk manager program or a BIOS extension ROM that supports LBA, such as Universal BIOS. Now for hosting the BIOS extension ROM you can use an XT-IDE card (just the ROM and the 74LS688 that generates ROM /CS), or a network card with an available ROM socket.

After reading the new sections on the universal BIOS, I thought the XT-IDE would work fine in an 5170?
Furthermore, if I decide to go the route of the 16bit card as you suggest, can I use a hard drive or CF adapter that is larger than 528 and simply live with the size limitation (i.e. can I trick the adapter/pc into thinking it is a smaller drive)?

hargle
August 12th, 2012, 07:06 AM
>After reading the new sections on the universal BIOS, I thought the XT-IDE would work fine in an 5170?
It will work just fine. Your performance will suck, since you're only using 1/2 of the 16bit bus in your 5170, but it will do what it is supposed to do-give you lots of cheap storage.

>Furthermore, if I decide to go the route of the 16bit card as you suggest, can I use a hard drive or CF adapter that is larger than 528 and simply live with the size limitation (i.e. can I trick the adapter/pc into thinking it is a smaller drive)?

Likely, yes. the 528mb limit is a software limit.
A better solution would be to find a 16 bit IDE controller that has a BIOS chip you can replace. Pop in the Universal BIOS in AT mode and you'll get your 16 bit performance, and storage sizes that will blow your mind.

pearce_jj
August 12th, 2012, 09:59 AM
Since you mention Compact Flash, my forthcoming board might be of interest. Although it's 8-bit like the original XT/IDE, with memory-mapped IO it will do about 1MB/s on a 12MHz AT.