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Add the TK43 pin, which goes low when seeking to track 43 or above.

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David Given
2020-09-10 21:48:30 +02:00
parent 4855f825e2
commit c78ed2c6ad
6 changed files with 363 additions and 285 deletions
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6
doc/building.md
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@@ -292,7 +292,7 @@ INDEX300 ---+ 3.0| | GND+--------------------------+
+----+ +----+ +--+--+ |
INDEX360 ---+ 3.1| | 1.7+------ DISKCHG --+34+33+--+
+----+ +----+ +--+--+
+ 3.2| | 1.6+------- SIDE1 ---+32+31+
TK43 ---+ 3.2| | 1.6+------- SIDE1 ---+32+31+
+----+ +----+ +--+--+
+ 3.3| | 1.5+------- RDATA ---+30+29+
+----+ +----+ +--+--+
@@ -365,6 +365,10 @@ Notes:
rather exotic things. See the section on flippy disks [in the FAQ](faq.md)
for more details; you can normally ignore these.
- `TK43` is an optional output pin which goes low when the drive is seeking
to track 43 or above. This is useful when using 8" floppy drives, which
require reduced write current when writing to these tracks.
## Next steps
You should now be ready to go. You'll want to read [the client