CompuServe Thread

#External Drives

2 messages in this thread
#44113From: John D. SellDec 16, 1986 9:09 PM
I've picked up an external drive from a company called Halted Specialties. The drive itself is the same drive used in the amiga but the company didn't have any documentation on the drive. Can anyone tell me what the pinouts are for the 34 pin connector on the back of the drive and what lines should be kept for the 23 pin connector on the back of the Amiga, Thanks… John 73647,1534
#44146From: Don Curtis/SYSOPDec 16, 1986 11:01 PM
John, I'll give you the pinouts….but I think there is a matter of an interface board also. 34 pin connector: 1. GND 18 DIRB 2. CHNG* 19 GND 3. GND 20 STEPB* 4. MTROD*(LED) 21 GND 5. GND 22 DKWDB* 6. N.C. 23 GND 7. GND 24 DKWEB* 8. INDEX* 25 GND 9. GND 26 TKO* 10.SELOB* 27 GND 11.GND 28 WPRO* 12.N.C. 29 GND 13.GND 30 DKRD* 14.N.C. 31 GND 15.GND 32 SIDEB* 16.MTROD* 33 GND 17.GND 34 RDY* There is also a 4 pin SIP header that has pinouts: 1=+12v, 2=gnd, 3=gnd, 4=+5v The Amiga db23 disk port pinouts are: 1. RDY* 13 SIDEB* 2. DKRD* 14 WPRO* 3. GND 15 TKO* 4. GND 16 DKWEB* 5. GND 17 DKWDB* 6. GND 18 STEPB* 7. GND 19 DIRB 8. MTRXD* 20 SEL3B* 9. SEL2B* 21 SEL1B* 10.DRESB* 22 INDEX* 11.CHNG* 23 +12v 12.+5v I'll leave it up to you to figure out what to do with them. Don