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Add documentation on drive configuration.

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David Given
2022-03-26 20:30:53 +01:00
parent 287f0d8909
commit 8884ca09fa
4 changed files with 153 additions and 11 deletions
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doc/technical.md
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@@ -88,6 +88,54 @@ GreaseWeazle hardware interchangeably with FluxEngine hardware. See the
[dedicated page](greaseweazle.md) for more information.
## Drive interface pinouts
For reference, here are the FDC pinouts:
```ditaa
:-E -s 0.75
+--+--+ +--+--+
DISKCHG ---+34+33+ DISKCHG ---+34+33+
+--+--+ +--+--+
SIDE1 ---+32+31+ SIDE1 ---+32+31+
+--+--+ +--+--+
RDATA ---+30+29+ RDATA ---+30+29+
+--+--+ +--+--+
WPT ---+28+27+ WPT ---+28+27+
+--+--+ +--+--+
TRK00 ---+26+25+ TRK00 ---+26+25+
+--+--+ +--+--+
WGATE ---+24+23+ WGATE ---+24+23+
+--+--+ +--+--+
WDATA ---+22+21+ WDATA ---+22+21+
+--+--+ +--+--+
STEP ---+20+19+ STEP ---+20+19+
+--+--+ +--+--+
DIR/SIDE1 ---+18+17+ DIR/SIDE1 ---+18+17+
+--+--+ +--+--+
MOTEB ---+16+15+ MOTEB ---+16+15+
+--+--+ +--+--+
DRVSA ---+14+13+ DS3 ---+14+13+
+--+--+ +--+--+
DRVSB ---+12+11+ DS2 ---+12+11+
+--+--+ +--+--+
MOTEA ---+10+9 + DS1 ---+10+9 +
+--+--+ +--+--+
INDEX ---+8 +7 + INDEX ---+8 +7 +
+--+--+ +--+--+
n/c ---+6 +5 + DS4 ---+6 +5 +
+--+--+ +--+--+
n/c ---+4 +3 + INU ---+4 +3 +
+--+--+ +--+--+
REDWC ---+2 +1 + REDWC ---+2 +1 +
+--+--+ +--+--+
PC interface Shugart interface
Odd numbered pins are always grounded
```
### Some useful links
- [The floppy disk user's