Colorado 1400¶
The HP/Colorado 1400 is a QIC-3010-class floppy-tape drive. Tapewyrm can select it and read its reports, but the bench unit has not referenced any tape, so no tape has been dumped on it.
Hardware likely bad
The only tested Colorado 1400 might well be bad, as it won't cleanly reference any tape that is presented to it. YMMV, I don't have another one to test with.
Identification¶
Values as reported by a bench unit:
| Report | Raw value | Decoded |
|---|---|---|
| Vendor ID (32) | 0x11C3 |
Make 71 (Colorado Memory Systems), model 3 |
| ROM version (9) | 0x79 |
ROM 121 |
| Drive configuration (8) | 0x98 |
QIC-80 mode bit set, 1 Mbit/s |
| Tape status (33) | Supported | Format UNKNOWN with every tape tried |
Profile¶
Use --profile colorado.1400. It is a copy of colorado with the same wake
sequence and timings:
| Setting | Value |
|---|---|
| Wake | Phantom Select (46) + argument 0, then Enter Primary Mode (30) |
| Step pulse width | 200 µs |
| Step gap | 2000 µs (2.2 ms period) |
| Terminate gap | 3000 µs |
| Report settle | 900 µs |
--profile auto does not try colorado.1400: its wake is identical to
colorado, which auto already tries.
Formats and rates¶
| Format | Rate | Status |
|---|---|---|
| QIC-3010 | 1 Mbit/s reported; 500 kbit/s is the standard rate | Drive accepts the format and rate selects. No tape referenced. |
| QIC-80 | 500 kbit/s | Refused: Select Rate or Format returns error 31. |
Quirks¶
- It does not reference tapes. Seek Load Point runs for about 29 s and ends Ready at BOT with no error, but the Referenced bit stays clear and Report Tape Status says format UNKNOWN. This happened with a QIC-80 tape and with a sealed factory QIC-3010 tape. The cause is not known; suspect the drive. Dump QIC-80 tapes on a Colorado Jumbo 350.
- It refuses QIC-80 selects. Select Rate or Format (27) accepts
format qic3010andrate 1000, and rejectsformat qic80andrate 500with error 31 (Rate or Format Selection Error). - Cue Index pulses are about 2.0 ms apart, faster than the Jumbo 350's 2.9 ms. Both are inside Rev J's TINX range.
- Read Data is gated during physical motion. Physical Forward (12) produces no Read Data transitions at all, on this drive and on the Jumbo
- A physical-motion flux probe cannot tell you whether the read channel works; only a Logical Forward capture on a referenced tape can.
- The cleaning cartridge on the bench is not detected. With it loaded the
drive reports status
0x01(Ready, no cartridge present) and Physical Forward fails with error 2 (Cartridge Not Present or Removed). A data tape in the same drive is detected, so the switch works and the cartridge shell does not reach it.tw drive cleancannot run with that cartridge, and no software option can force it: the drive refuses to move. See Cartridges.