IECHost “warp” disk imaging almost complete

This evening I managed to put together a new version of the IECHost firmware with which I made my first full disk dump, using a 7-GBP-worth hardware setup 🙂

As the PC client is not ready yet, I am just sending over data bytes in ASCII format and logging the console output to file. At a quick glance the output is very consistent and stable: empty sectors all look alike, i.e. as they should be 😉

I am going to put together the PC client at some point but for now I will use the capture I made to test the packet decoder, which still includes GCR decoding as I am not using on-the-fly GCR decoding at this iteration (and might entirely avoid it as it seems it doesn’t allow a two-revolution track dumping experience anyway).

Here’s one example of decoded sector:

Sector data (decoded GCR stream):
0000: 00 FF 82 11 00 45 41 53 59 50 52 4F 47 2D 31 2E .....EASYPROG...
0010: 36 2E 33 A0 A0 00 00 00 00 00 00 00 00 00 3E 00 ................
0020: 00 00 82 13 00 55 53 42 2D 42 41 53 49 43 20 31 .....USB.BASIC..
0030: 2E 31 50 A0 A0 00 00 00 00 00 00 00 00 00 07 00 ..P.............
0040: 00 00 82 13 02 55 53 42 2D 42 41 53 49 43 20 31 .....USB.BASIC..
0050: 2E 31 53 A0 A0 00 00 00 00 00 00 00 00 00 07 00 ..S.............
0060: 00 00 82 13 05 55 53 42 42 41 53 49 43 2E 43 52 .....USBBASIC.CR
0070: 54 A0 A0 A0 A0 00 00 00 00 00 00 00 00 00 21 00 T...............
0080: 00 00 82 0F 0F 55 53 42 42 41 53 49 43 2D 31 2E .....USBBASIC...
0090: 32 2E 43 52 54 00 00 00 00 00 00 00 00 00 21 00 ..CRT...........
00A0: 00 00 82 15 02 44 36 34 44 55 4D 50 45 52 A0 A0 .....D..DUMPER..
00B0: A0 A0 A0 A0 A0 00 00 00 00 00 00 00 00 00 10 00 ................
00C0: 00 00 82 16 00 55 53 42 42 41 53 49 43 2D 32 2E .....USBBASIC...
00D0: 30 2E 43 52 54 00 00 00 00 00 00 00 00 00 21 00 ..CRT...........
00E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

Data checksum (as saved on disk): E1

Sector: 1
More sectors in track: Yes

Hopefully, things will get very exciting very soon 🙂

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