I may need to build a 34 (standard) <-> 26 (laptop) connector soon.
Source: IBM/PC pinout (common PCs)
| Pin | Name | PC <-> Drive | Description |
|---|---|---|---|
| 2 | /REDWC |  |
Density Select |
| 4 | n/c | Reserved | |
| 6 | n/c | Reserved | |
| 8 | /INDEX |  |
Index |
| 10 | /MOTEA | |
Motor Enable A |
| 12 | /DRVSB | |
Drive Sel B |
| 14 | /DRVSA | |
Drive Sel A |
| 16 | /MOTEB | |
Motor Enable B |
| 18 | /DIR | |
Direction |
| 20 | /STEP | |
Step |
| 22 | /WDATE | |
Write Data |
| 24 | /WGATE | |
Floppy Write Enable |
| 26 | /TRK00 | |
Track 0 |
| 28 | /WPT | |
Write Protect |
| 30 | /RDATA | |
Read Data |
| 32 | /SIDE1 | |
Head Select |
| 34 | /DSKCHG | |
Disk Change/Ready |
Source: 3.5 inch micro Floppy Disk Drive connector (26 pin) pinout
| Pin | Name | PC <-> Drive | Description |
|---|---|---|---|
| 1 | VCC | |
VCC +5V |
| 2 | /INDEX | |
Index |
| 3 | VCC | |
VCC +5V |
| 4 | /DRVS | |
Drive Sel |
| 5 | VCC | |
VCC +5V |
| 6 | /DSKCHG | |
Disk Change |
| 7 | n/c | Reserved | |
| 8 | READY | |
used only in older drives. In newer drives N/C. |
| 9 | MEDIA | |
used only in older drives. In newer drives N/C. |
| 10 | /MOTE | |
Motor Enable |
| 11 | /REDWC | |
Density Select |
| 12 | /DIR | |
Direction |
| 13 | n/c | Reserved | |
| 14 | /STEP | |
Step |
| 15 | GND | Ground | |
| 16 | /WDATE | |
Write Data |
| 17 | GND | Ground | |
| 18 | /WGATE | |
Write Gate |
| 19 | GND | Ground | |
| 20 | /TRK00 | |
Track 0 |
| 21 | GND | Ground | |
| 22 | /WPT | |
Write Protect |
| 23 | GND | Ground | |
| 24 | /RDATA | |
Read Data |
| 25 | GND | Ground | |
| 26 | /SIDE1 | |
Side 1 Select |