Raspberry PI PICO ATARI ST Hard Drive Emulator (WIP)

[dad664npc]

This explains a lot - http://info-coach.fr/atari/documents/_m ... _Guide.pdf

[exxos]

Yep. It was posted earlier.

Basically doesn't seem TOS/DOS is possible without a more modern driver.

[stephen_usher]

The problem is that an Atari ST partition table is not the same as the IBM-PC partition table, so you can't have a bootable (Atari) drive which is readable on a PC.

GEM and BGM partitions are FAT12 filesystems but with different block sizes. MSDOS gave up on FAT12 with Windows 95 (not having been used for anything other than floppies by MSDOS since 2.11).

The underlying TOS OS doesn't really support large drives using CHS, it's hacked by the drivers to use large virtual block sizes, so reducing the number of "blocks" on the drive to a number that TOS can handle. These hacks for FAT12 aren't supported by MSDOS.

[exxos]

29 are now in stock. :D The world's first "exxos approved" SD harddrive for the Atari ST :D

https://www.exxosforum.co.uk/atari/store2/#0259

Shipping should start next week all being well.

[JezC]

Great...now I just need to find a way to pay for one...guess I'd better sell something :( :roll:

[alexh]

I'm setting mine up over the next few days with the Atari 520 ST I just bought. I'll feedback how easy it was to setup and use.

[JezC]

I'm setting mine up over the next few days with the Atari 520 ST I just bought. I'll feedback how easy it was to setup and use.

Great - will be good to know.
I will get the Saleae logic Pro 16 set up on a laptop ready to test it with my STs (STE/STF/H4/H5 etc.) just in case ;)

[exxos]

My package of goodies just arrived :D

IMG_1135.JPG

IMG_1136.JPG

[exxos]

Adopt a drive now. Many drives are looking for their forever home...

IMG_1139.JPG

[exxos]

Busy bee me...

IMG_1141.JPG

IMG_1142.JPG