IDE interface for Mega ST based on P.Putnik design
07.01.2018 21:06
Best HDD for MegaST !
What to say ? The MegaST is best from ST line, why ? For some reasons :
MegaBus - Direct proccesor connection - no comment
Mega2 - Easily to 4MB expand
Handy Pizzabox case - i love it !!!
And now, you resurected old Mega, but floppy sux, Megadrive sux. Thre are some possibilities, Satandrive or some ACSI2SCSI interface. But wait a moment, what about IDE drive ?
So thanks god the Atari scene has Pera Putnick.
He made IDEif, it is known design for IDE connection, like it was integrated in TOS 2.06 / yes 2.06 is IDE native !!!
There can be one question : "MegaST is TOS 1.04 ? Cannot run with 2.06 cos HW things !"
Of course, there are some forcing techniques, but another board ? No, no, on this ideif board is Gal IC where left place for TOS 2.06 abilities.
On the other side, you can patch your 1.04 to boot from IDE.
What about the installation ? In case of patched TOS is without soldering, other way 1pin need to be solder.
Tottaly 4 connections needed : +5V, Interupt from ACSI10, + for TOS 2.06 will need ROM2 from motherboard and CER to ROMs.
Here is owerall photo of installation - simpcity itself. On the photo is ROM32to28 adaptor, neccesary for modern, non OTP ROMS.
And here detail for ROM2 pin, no drilling just solder 1 pin.
And on the end i must recomend Peras's IDEdriver. You will have Formatter/Partitioner and HDDdriver in 1, and other benefits are that first
partition is readable from MS Win / super data transfer, you can change from what disk to boot / wery useful.
12.10.2017 21:27
Shony
New batch of PCBs arrived, they are bule as a blues.
04.03.2019 12:06
Visitor
hi, do you have spare PCB left?
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