After a few tuning cycles, I am glad to say that the warp transfer routine that is used for sector writing to a physical disk is now working as expected.
The very first sector I wrote to a real disk is from Booze Design’s 20 year anniversary demo (track 1, sector 0). Here’s what it looks like when I read it back:
> bd 0
0000: 01 08 01 08 0B 08 00 00 9E 32 30 36 31 00 00 00 .........2061...
0010: 78 A9 34 85 01 A2 3D BD 1F 08 95 06 CA 10 F8 4C x.4...=........L
0020: 08 00 49 FB A0 FF B9 C8 0C 99 00 FF 88 D0 F7 B1 ..I.............
0030: 0B 91 0E C6 0F C6 0C A5 0C C9 08 B0 E7 B9 5D 08 ..............].
0040: 99 34 03 C8 C0 B4 90 F5 A0 02 B1 06 99 03 00 88 .4..............
0050: 10 F8 18 A9 03 65 06 85 06 90 02 E6 07 4C 34 03 .....e.......L4.
0060: 20 B8 03 08 A9 01 20 B8 03 90 06 20 B8 03 2A 10 ..... .... ..*.
0070: F5 28 B0 18 85 02 A0 00 B1 06 91 04 C8 C4 02 D0 .(..............
0080: F7 A2 02 20 D1 03 C8 F0 D7 38 B0 D7 69 00 F0 4C ... .....8..i..L
0090: 85 02 C9 03 A9 00 85 08 85 09 2A 20 B8 03 2A 20 ..........* ..*
00A0: B8 03 2A AA BC E0 03 20 B8 03 26 08 26 09 88 D0 ..*.... ..&.&...
00B0: F6 8A CA 29 03 F0 08 E6 08 D0 E9 E6 09 D0 E5 38 ...)...........8
00C0: A5 04 E5 08 85 08 A5 05 E5 09 85 09 B1 08 91 04 ................
00D0: C8 C4 02 D0 F7 A2 00 20 D1 03 30 84 A9 37 85 01 ....... ..0..7..
00E0: 58 4C 0D 08 06 03 D0 14 48 98 48 A0 00 B1 06 E6 XL......H.H.....
00F0: 06 D0 02 E6 07 38 2A 85 03 68 A8 68 60 18 98 75 .....8*..h.h`..u
It’s now a matter of just sending all sectors from the IECHost client to the IECHost hardware and watch it warp-write them to a physical disk.
I am not sure what to expect (and therefore handle) in case of error, e.g. bad disk, bad track, bad sector, software errors on tracks and sectors, unformatted disk, etc. I guess I will get to it once I finish the whole client software part.
Stay tuned as the excitement is about to explode!