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F/+HARD3
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Personal collection » Acorn ADFS disks » Electron_User_Group » EUG_35.ADF |
| Filename: | F/+HARD3 |
| Read OK: | ✔ |
| File size: | 181B bytes |
| Load address: | 2B204556 |
| Exec address: | 44524148 |
Duplicates
There is 1 duplicate copy of this file in the archive:
- Personal collection » Acorn ADFS disks » Electron_User_Group » EUG_35.ADF » F/+HARD3
- Personal collection » Acorn hard disk » zipped_disks » elk03 » eug35/F/+HARD3
File contents
Shugart
A new Shugart controller is available in the U.S.A. which can emulate
Xebec S1410 and DTC 510B controllers, new price is around $79 from
companies advertising in BYTE - we just need someone to import them!!
Adaptec (model ACB4000 and ACB4070)
The ACB4000 is used by Acorn in their "official" systems with Rodime or
Seagate drives, it works in MFM only with 32 sectors per track. As the
ACB4000 is used by Acorn it is fully supported and will work with their
SuperForm (Winchester formatter program). Viglen use the ACB4070 which
supports MFM and RLL.
Advantages of Adaptec controller(s) are that they are used by Acorn, and
store the drive parameters on the drive. The Adaptec controllers have a
few opcodes not found on other controllers such as $2F - read drive
parameters. This is not a problem as these are only used during
formatting, and a different format program for a different controller
solves this.
Tame Micro Systems sell Adaptec controllers (ACB4000 = `155, ACB4070 =
`175 both +VAT)
DTC (models 510A/B and 520A/B)
33 sectors per track
Disk Technology Corp. One of the more profuse series of controllers - as
DTC have been in the market a long time their controllers have been used
with a lot of different machines.
The 510 series controllers support two Winchesters, while the 520 series
support two Winchesters and also two floppy disks (using an NEC765 FDC).
Basically the B versions of both are newer than the A versions, the
firmware in the A versions is stored on a 2732 and in the B versions a
2764 is used. The B version of the controllers have some extra opcodes,
but these are not needed for the BBC.
The importer/distributor of DTC controllers is not known so prices can't
be found, but I believe that the current new price for a DTC510A is around
`110+VAT.
Most hobbiests use the DTC controllers as they have been found on the
second hand market at affordable prices (circa `50-`60). With the BBC
micro the drive parameters are put into the controller's Eprom as the
default parameters.
Xebec (model S1410)
32 sectors per track
Another profuse controller - available for around `167+VAT new (Farnell).
Believed to be used in some third party Acorn compatible products for the
BBC, also used in various CP/M and IBM PC type machines.
Advantages of this controller are it's ability to support up to 65535
cylinders and 16 heads for very large drives, and it stores the drive
parameters on the drive.
Xebec S1410a
We have now used this controller and are very impressed. As standard it
comes with a 4k Eprom (2732) with software version 104788. This firmware
is usable but would need a new parameter table for different size drives -
the parameter table is at the end of the eprom -. The main disadvantage
is that the step rate of the drive is not stored in the parameter table
but the controller expects the drive step rate to be supplied in the
control block sent to it by ADFS which is always zero. The controller
interprets this as a 3 msec step rate which, for modern drives such as
Rodime 200 series, is slow! (in fact the DTC controllers default to 3 msec
on reset so they seek track zero at 3msec step rate when you press break).
Optional firmware release 104793
Just under 8k in 2764. The drive parameters are supplied at format time,
including the step rate, and are written to physical track zero. These
parameters are read from the drive at controller reset. The result is that
the drive seeks track zero at the step rate during formatting. Obviously
one cylinder of the winchester is lost to the parameters so the drive has
one cylinder less for the user - ie Rodime 202 has 321 cylinders but when
initialised has 320 available to the user.
Western Digital (models WD1001, WD1002 and WD1003)
32 sectors per track
The WD1001 controller series are believed to be somewhat non standard and
will not work with the Beeb.
The WD1002 is available in two very different versions:
-WX1 suffix, which is a half length plug in card for the IBM PC using SMD
devices (costs around `90) and not suitable for the BBC, and
-SHD suffix, conventional card. The WD1002-SHD will work with the BBC but
there are problems with storing the drive parameters (Solidisk use the
1002 with their Winchester system but you have to use their host adaptor
and their ADFS - I have not found their ADFS particularly reliable!)
The WD1003 is a newer controller, and apparently has a link to make it
Adaptec ACB4000 compatible, but we don't have any more info on it...
WD1002-SHD disadvantages: the drive parameters cannot be stored on the
drive and cannot be programmed into Eprom since the controller does not
have an Eprom (it uses custom chips instead of being microprocessor
based).
Solidisk have got around the drive parameters problem by storing them
inside the ADFS ROM, this means that the ADFS ROM has to be supplied by
Solidisk to match the drive. An Eprom could be written for the Beeb that
detected power up or pressing BREAK and then sent the parameters to the
controller if it was connected - this is being investigated.
You are probably best avoiding WD1001/1002 controllers for a BBC
application because of the problem storing the drive parameters.
NCL NDC 3011
NCL make a small controller that looks like it should work okay with the
BBC, it is sold by Tame MicroSystems for around `120.00, but as yet no one
has tried one.
Winchester disk systems For the BBC micro
To implement a winchester disk system on the BBC micro (model B or
B+) or Master you need the following:
1. A suitable drive (any size upto 4 Giga bytes is supported!!!).
2. Acorn's ADFS (Advanced Disk Filing System) version 1.30 for
the BBC B/B+, or version 1.50 for the Master (already fitted
in the Master 128).
3. A suitable controller card: DTC, Adaptec or Xebec recommended.
4. Host adaptor (detailed later).
5. Power supply - you cannot run this of the internal power
supply!!! (around +5V at 5A and +12V at 5A should suffice)
00000000 53 68 75 67 61 72 74 0d 0d 41 20 6e 65 77 20 53 |Shugart..A new S| 00000010 68 75 67 61 72 74 20 63 6f 6e 74 72 6f 6c 6c 65 |hugart controlle| 00000020 72 20 69 73 1a 20 61 76 61 69 6c 61 62 6c 65 1a |r is. available.| 00000030 20 69 6e 1a 20 74 68 65 1a 20 55 2e 53 2e 41 2e | in. the. U.S.A.| 00000040 1a 20 77 68 69 63 68 20 63 61 6e 20 65 6d 75 6c |. which can emul| 00000050 61 74 65 0d 58 65 62 65 63 1a 20 53 31 34 31 30 |ate.Xebec. S1410| 00000060 1a 20 61 6e 64 1a 20 44 54 43 1a 20 35 31 30 42 |. and. DTC. 510B| 00000070 1a 20 63 6f 6e 74 72 6f 6c 6c 65 72 73 2c 1a 20 |. controllers,. | 00000080 6e 65 77 20 70 72 69 63 65 20 69 73 20 61 72 6f |new price is aro| 00000090 75 6e 64 1a 20 24 37 39 1a 20 66 72 6f 6d 0d 63 |und. $79. from.c| 000000a0 6f 6d 70 61 6e 69 65 73 20 61 64 76 65 72 74 69 |ompanies adverti| 000000b0 73 69 6e 67 20 69 6e 20 42 59 54 45 20 2d 20 77 |sing in BYTE - w| 000000c0 65 20 6a 75 73 74 20 6e 65 65 64 20 73 6f 6d 65 |e just need some| 000000d0 6f 6e 65 20 74 6f 20 69 6d 70 6f 72 74 20 74 68 |one to import th| 000000e0 65 6d 21 21 0d 0d 41 64 61 70 74 65 63 20 28 6d |em!!..Adaptec (m| 000000f0 6f 64 65 6c 20 41 43 42 34 30 30 30 20 61 6e 64 |odel ACB4000 and| 00000100 20 41 43 42 34 30 37 30 29 0d 0d 54 68 65 20 41 | ACB4070)..The A| 00000110 43 42 34 30 30 30 20 69 73 20 75 73 65 64 20 62 |CB4000 is used b| 00000120 79 1a 20 41 63 6f 72 6e 1a 20 69 6e 1a 20 74 68 |y. Acorn. in. th| 00000130 65 69 72 20 22 6f 66 66 69 63 69 61 6c 22 20 73 |eir "official" s| 00000140 79 73 74 65 6d 73 20 77 69 74 68 20 52 6f 64 69 |ystems with Rodi| 00000150 6d 65 20 6f 72 0d 53 65 61 67 61 74 65 20 64 72 |me or.Seagate dr| 00000160 69 76 65 73 2c 20 69 74 20 77 6f 72 6b 73 20 69 |ives, it works i| 00000170 6e 20 4d 46 4d 20 6f 6e 6c 79 20 77 69 74 68 1a |n MFM only with.| 00000180 20 33 32 1a 20 73 65 63 74 6f 72 73 1a 20 70 65 | 32. sectors. pe| 00000190 72 20 74 72 61 63 6b 2e 20 20 41 73 20 74 68 65 |r track. As the| 000001a0 0d 41 43 42 34 30 30 30 20 69 73 20 75 73 65 64 |.ACB4000 is used| 000001b0 20 62 79 20 41 63 6f 72 6e 20 69 74 20 69 73 20 | by Acorn it is | 000001c0 66 75 6c 6c 79 20 73 75 70 70 6f 72 74 65 64 20 |fully supported | 000001d0 61 6e 64 20 77 69 6c 6c 1a 20 77 6f 72 6b 1a 20 |and will. work. | 000001e0 77 69 74 68 1a 20 74 68 65 69 72 0d 53 75 70 65 |with. their.Supe| 000001f0 72 46 6f 72 6d 1a 20 28 57 69 6e 63 68 65 73 74 |rForm. (Winchest| 00000200 65 72 1a 20 66 6f 72 6d 61 74 74 65 72 1a 20 70 |er. formatter. p| 00000210 72 6f 67 72 61 6d 29 2e 20 20 56 69 67 6c 65 6e |rogram). Viglen| 00000220 20 75 73 65 20 74 68 65 20 41 43 42 34 30 37 30 | use the ACB4070| 00000230 20 77 68 69 63 68 0d 73 75 70 70 6f 72 74 73 20 | which.supports | 00000240 4d 46 4d 20 61 6e 64 20 52 4c 4c 2e 0d 0d 41 64 |MFM and RLL...Ad| 00000250 76 61 6e 74 61 67 65 73 20 6f 66 20 41 64 61 70 |vantages of Adap| 00000260 74 65 63 20 63 6f 6e 74 72 6f 6c 6c 65 72 28 73 |tec controller(s| 00000270 29 20 61 72 65 1a 20 74 68 61 74 1a 20 74 68 65 |) are. that. the| 00000280 79 20 61 72 65 20 75 73 65 64 20 62 79 20 41 63 |y are used by Ac| 00000290 6f 72 6e 2c 20 61 6e 64 0d 73 74 6f 72 65 20 74 |orn, and.store t| 000002a0 68 65 20 64 72 69 76 65 20 70 61 72 61 6d 65 74 |he drive paramet| 000002b0 65 72 73 20 6f 6e 20 74 68 65 20 64 72 69 76 65 |ers on the drive| 000002c0 2e 1a 20 20 54 68 65 1a 20 41 64 61 70 74 65 63 |.. The. Adaptec| 000002d0 20 63 6f 6e 74 72 6f 6c 6c 65 72 73 20 68 61 76 | controllers hav| 000002e0 65 20 61 0d 66 65 77 1a 20 6f 70 63 6f 64 65 73 |e a.few. opcodes| 000002f0 1a 20 6e 6f 74 1a 20 66 6f 75 6e 64 20 6f 6e 20 |. not. found on | 00000300 6f 74 68 65 72 20 63 6f 6e 74 72 6f 6c 6c 65 72 |other controller| 00000310 73 20 73 75 63 68 20 61 73 1a 20 24 32 46 1a 20 |s such as. $2F. | 00000320 2d 1a 20 72 65 61 64 1a 20 64 72 69 76 65 0d 70 |-. read. drive.p| 00000330 61 72 61 6d 65 74 65 72 73 2e 1a 20 20 54 68 69 |arameters.. Thi| 00000340 73 1a 20 69 73 20 6e 6f 74 1a 20 61 1a 20 70 72 |s. is not. a. pr| 00000350 6f 62 6c 65 6d 1a 20 61 73 1a 20 74 68 65 73 65 |oblem. as. these| 00000360 1a 20 61 72 65 1a 20 6f 6e 6c 79 1a 20 75 73 65 |. are. only. use| 00000370 64 1a 20 64 75 72 69 6e 67 0d 66 6f 72 6d 61 74 |d. during.format| 00000380 74 69 6e 67 2c 20 61 6e 64 20 61 1a 20 64 69 66 |ting, and a. dif| 00000390 66 65 72 65 6e 74 1a 20 66 6f 72 6d 61 74 1a 20 |ferent. format. | 000003a0 70 72 6f 67 72 61 6d 1a 20 66 6f 72 1a 20 61 20 |program. for. a | 000003b0 64 69 66 66 65 72 65 6e 74 20 63 6f 6e 74 72 6f |different contro| 000003c0 6c 6c 65 72 0d 73 6f 6c 76 65 73 20 74 68 69 73 |ller.solves this| 000003d0 2e 0d 0d 54 61 6d 65 20 4d 69 63 72 6f 20 53 79 |...Tame Micro Sy| 000003e0 73 74 65 6d 73 20 73 65 6c 6c 20 41 64 61 70 74 |stems sell Adapt| 000003f0 65 63 1a 20 63 6f 6e 74 72 6f 6c 6c 65 72 73 1a |ec. controllers.| 00000400 20 28 41 43 42 34 30 30 30 1a 20 3d 1a 20 60 31 | (ACB4000. =. `1| 00000410 35 35 2c 20 41 43 42 34 30 37 30 20 3d 0d 60 31 |55, ACB4070 =.`1| 00000420 37 35 20 62 6f 74 68 20 2b 56 41 54 29 0d 0d 44 |75 both +VAT)..D| 00000430 54 43 20 28 6d 6f 64 65 6c 73 20 35 31 30 41 2f |TC (models 510A/| 00000440 42 20 61 6e 64 20 35 32 30 41 2f 42 29 0d 0d 33 |B and 520A/B)..3| 00000450 33 20 73 65 63 74 6f 72 73 20 70 65 72 20 74 72 |3 sectors per tr| 00000460 61 63 6b 0d 44 69 73 6b 20 54 65 63 68 6e 6f 6c |ack.Disk Technol| 00000470 6f 67 79 20 43 6f 72 70 2e 20 20 4f 6e 65 20 6f |ogy Corp. One o| 00000480 66 1a 20 74 68 65 20 6d 6f 72 65 20 70 72 6f 66 |f. the more prof| 00000490 75 73 65 20 73 65 72 69 65 73 20 6f 66 20 63 6f |use series of co| 000004a0 6e 74 72 6f 6c 6c 65 72 73 20 2d 20 61 73 0d 44 |ntrollers - as.D| 000004b0 54 43 20 68 61 76 65 20 62 65 65 6e 20 69 6e 20 |TC have been in | 000004c0 74 68 65 20 6d 61 72 6b 65 74 1a 20 61 1a 20 6c |the market. a. l| 000004d0 6f 6e 67 20 74 69 6d 65 20 74 68 65 69 72 20 63 |ong time their c| 000004e0 6f 6e 74 72 6f 6c 6c 65 72 73 20 68 61 76 65 20 |ontrollers have | 000004f0 62 65 65 6e 20 75 73 65 64 0d 77 69 74 68 20 61 |been used.with a| 00000500 20 6c 6f 74 20 6f 66 20 64 69 66 66 65 72 65 6e | lot of differen| 00000510 74 20 6d 61 63 68 69 6e 65 73 2e 0d 0d 54 68 65 |t machines...The| 00000520 20 35 31 30 20 73 65 72 69 65 73 20 63 6f 6e 74 | 510 series cont| 00000530 72 6f 6c 6c 65 72 73 20 73 75 70 70 6f 72 74 1a |rollers support.| 00000540 20 74 77 6f 1a 20 57 69 6e 63 68 65 73 74 65 72 | two. Winchester| 00000550 73 2c 20 77 68 69 6c 65 20 74 68 65 20 35 32 30 |s, while the 520| 00000560 20 73 65 72 69 65 73 0d 73 75 70 70 6f 72 74 20 | series.support | 00000570 74 77 6f 20 57 69 6e 63 68 65 73 74 65 72 73 20 |two Winchesters | 00000580 61 6e 64 20 61 6c 73 6f 20 74 77 6f 20 66 6c 6f |and also two flo| 00000590 70 70 79 1a 20 64 69 73 6b 73 1a 20 28 75 73 69 |ppy. disks. (usi| 000005a0 6e 67 20 61 6e 20 4e 45 43 37 36 35 20 46 44 43 |ng an NEC765 FDC| 000005b0 29 2e 20 0d 42 61 73 69 63 61 6c 6c 79 1a 20 74 |). .Basically. t| 000005c0 68 65 1a 20 42 1a 20 76 65 72 73 69 6f 6e 73 20 |he. B. versions | 000005d0 6f 66 20 62 6f 74 68 20 61 72 65 20 6e 65 77 65 |of both are newe| 000005e0 72 20 74 68 61 6e 1a 20 74 68 65 1a 20 41 1a 20 |r than. the. A. | 000005f0 76 65 72 73 69 6f 6e 73 2c 1a 20 74 68 65 0d 66 |versions,. the.f| 00000600 69 72 6d 77 61 72 65 20 69 6e 20 74 68 65 20 41 |irmware in the A| 00000610 1a 20 76 65 72 73 69 6f 6e 73 1a 20 69 73 1a 20 |. versions. is. | 00000620 73 74 6f 72 65 64 1a 20 6f 6e 20 61 20 32 37 33 |stored. on a 273| 00000630 32 20 61 6e 64 20 69 6e 20 74 68 65 20 42 20 76 |2 and in the B v| 00000640 65 72 73 69 6f 6e 73 20 61 0d 32 37 36 34 20 69 |ersions a.2764 i| 00000650 73 20 75 73 65 64 2e 20 20 54 68 65 20 42 20 76 |s used. The B v| 00000660 65 72 73 69 6f 6e 20 6f 66 20 74 68 65 1a 20 63 |ersion of the. c| 00000670 6f 6e 74 72 6f 6c 6c 65 72 73 1a 20 68 61 76 65 |ontrollers. have| 00000680 20 73 6f 6d 65 20 65 78 74 72 61 20 6f 70 63 6f | some extra opco| 00000690 64 65 73 2c 0d 62 75 74 20 74 68 65 73 65 20 61 |des,.but these a| 000006a0 72 65 20 6e 6f 74 20 6e 65 65 64 65 64 20 66 6f |re not needed fo| 000006b0 72 20 74 68 65 20 42 42 43 2e 0d 0d 54 68 65 20 |r the BBC...The | 000006c0 69 6d 70 6f 72 74 65 72 2f 64 69 73 74 72 69 62 |importer/distrib| 000006d0 75 74 6f 72 20 6f 66 20 44 54 43 20 63 6f 6e 74 |utor of DTC cont| 000006e0 72 6f 6c 6c 65 72 73 1a 20 69 73 1a 20 6e 6f 74 |rollers. is. not| 000006f0 20 6b 6e 6f 77 6e 20 73 6f 20 70 72 69 63 65 73 | known so prices| 00000700 20 63 61 6e 27 74 0d 62 65 20 66 6f 75 6e 64 2c | can't.be found,| 00000710 20 62 75 74 20 49 20 62 65 6c 69 65 76 65 20 74 | but I believe t| 00000720 68 61 74 20 74 68 65 20 63 75 72 72 65 6e 74 20 |hat the current | 00000730 6e 65 77 20 70 72 69 63 65 20 66 6f 72 20 61 20 |new price for a | 00000740 44 54 43 35 31 30 41 20 69 73 20 61 72 6f 75 6e |DTC510A is aroun| 00000750 64 0d 60 31 31 30 2b 56 41 54 2e 0d 0d 4d 6f 73 |d.`110+VAT...Mos| 00000760 74 20 68 6f 62 62 69 65 73 74 73 20 75 73 65 20 |t hobbiests use | 00000770 74 68 65 20 44 54 43 1a 20 63 6f 6e 74 72 6f 6c |the DTC. control| 00000780 6c 65 72 73 1a 20 61 73 1a 20 74 68 65 79 1a 20 |lers. as. they. | 00000790 68 61 76 65 1a 20 62 65 65 6e 20 66 6f 75 6e 64 |have. been found| 000007a0 20 6f 6e 20 74 68 65 0d 73 65 63 6f 6e 64 1a 20 | on the.second. | 000007b0 68 61 6e 64 1a 20 6d 61 72 6b 65 74 1a 20 61 74 |hand. market. at| 000007c0 1a 20 61 66 66 6f 72 64 61 62 6c 65 20 70 72 69 |. affordable pri| 000007d0 63 65 73 20 28 63 69 72 63 61 20 60 35 30 2d 60 |ces (circa `50-`| 000007e0 36 30 29 2e 20 20 57 69 74 68 20 74 68 65 20 42 |60). With the B| 000007f0 42 43 0d 6d 69 63 72 6f 20 74 68 65 20 64 72 69 |BC.micro the dri| 00000800 76 65 20 70 61 72 61 6d 65 74 65 72 73 20 61 72 |ve parameters ar| 00000810 65 1a 20 70 75 74 1a 20 69 6e 74 6f 1a 20 74 68 |e. put. into. th| 00000820 65 1a 20 20 63 6f 6e 74 72 6f 6c 6c 65 72 27 73 |e. controller's| 00000830 20 45 70 72 6f 6d 20 61 73 20 74 68 65 0d 64 65 | Eprom as the.de| 00000840 66 61 75 6c 74 20 70 61 72 61 6d 65 74 65 72 73 |fault parameters| 00000850 2e 0d 0d 58 65 62 65 63 20 28 6d 6f 64 65 6c 20 |...Xebec (model | 00000860 53 31 34 31 30 29 0d 0d 33 32 20 73 65 63 74 6f |S1410)..32 secto| 00000870 72 73 20 70 65 72 20 74 72 61 63 6b 0d 41 6e 6f |rs per track.Ano| 00000880 74 68 65 72 20 70 72 6f 66 75 73 65 20 63 6f 6e |ther profuse con| 00000890 74 72 6f 6c 6c 65 72 20 2d 20 61 76 61 69 6c 61 |troller - availa| 000008a0 62 6c 65 1a 20 66 6f 72 20 61 72 6f 75 6e 64 20 |ble. for around | 000008b0 60 31 36 37 2b 56 41 54 20 6e 65 77 20 28 46 61 |`167+VAT new (Fa| 000008c0 72 6e 65 6c 6c 29 2e 20 0d 42 65 6c 69 65 76 65 |rnell). .Believe| 000008d0 64 20 74 6f 20 62 65 20 75 73 65 64 20 69 6e 1a |d to be used in.| 000008e0 20 73 6f 6d 65 20 74 68 69 72 64 20 70 61 72 74 | some third part| 000008f0 79 20 41 63 6f 72 6e 20 63 6f 6d 70 61 74 69 62 |y Acorn compatib| 00000900 6c 65 20 70 72 6f 64 75 63 74 73 20 66 6f 72 20 |le products for | 00000910 74 68 65 0d 42 42 43 2c 20 61 6c 73 6f 20 75 73 |the.BBC, also us| 00000920 65 64 20 69 6e 20 76 61 72 69 6f 75 73 20 20 43 |ed in various C| 00000930 50 2f 4d 20 61 6e 64 20 49 42 4d 20 50 43 20 74 |P/M and IBM PC t| 00000940 79 70 65 20 6d 61 63 68 69 6e 65 73 2e 0d 0d 41 |ype machines...A| 00000950 64 76 61 6e 74 61 67 65 73 20 6f 66 20 74 68 69 |dvantages of thi| 00000960 73 20 63 6f 6e 74 72 6f 6c 6c 65 72 20 61 72 65 |s controller are| 00000970 1a 20 69 74 27 73 1a 20 61 62 69 6c 69 74 79 1a |. it's. ability.| 00000980 20 74 6f 1a 20 73 75 70 70 6f 72 74 1a 20 75 70 | to. support. up| 00000990 20 74 6f 20 36 35 35 33 35 0d 63 79 6c 69 6e 64 | to 65535.cylind| 000009a0 65 72 73 1a 20 61 6e 64 1a 20 31 36 20 68 65 61 |ers. and. 16 hea| 000009b0 64 73 20 66 6f 72 20 76 65 72 79 20 6c 61 72 67 |ds for very larg| 000009c0 65 20 64 72 69 76 65 73 2c 20 61 6e 64 20 69 74 |e drives, and it| 000009d0 1a 20 73 74 6f 72 65 73 1a 20 74 68 65 1a 20 64 |. stores. the. d| 000009e0 72 69 76 65 0d 70 61 72 61 6d 65 74 65 72 73 20 |rive.parameters | 000009f0 6f 6e 20 74 68 65 20 64 72 69 76 65 2e 0d 0d 58 |on the drive...X| 00000a00 65 62 65 63 20 53 31 34 31 30 61 0d 0d 57 65 20 |ebec S1410a..We | 00000a10 68 61 76 65 20 6e 6f 77 20 75 73 65 64 20 74 68 |have now used th| 00000a20 69 73 1a 20 63 6f 6e 74 72 6f 6c 6c 65 72 1a 20 |is. controller. | 00000a30 61 6e 64 20 61 72 65 20 76 65 72 79 20 69 6d 70 |and are very imp| 00000a40 72 65 73 73 65 64 2e 20 20 41 73 20 73 74 61 6e |ressed. As stan| 00000a50 64 61 72 64 20 69 74 0d 63 6f 6d 65 73 20 77 69 |dard it.comes wi| 00000a60 74 68 20 61 20 34 6b 20 45 70 72 6f 6d 20 28 32 |th a 4k Eprom (2| 00000a70 37 33 32 29 20 77 69 74 68 1a 20 73 6f 66 74 77 |732) with. softw| 00000a80 61 72 65 20 76 65 72 73 69 6f 6e 20 31 30 34 37 |are version 1047| 00000a90 38 38 2e 20 20 54 68 69 73 20 66 69 72 6d 77 61 |88. This firmwa| 00000aa0 72 65 0d 69 73 20 75 73 61 62 6c 65 20 62 75 74 |re.is usable but| 00000ab0 20 77 6f 75 6c 64 20 6e 65 65 64 20 61 20 6e 65 | would need a ne| 00000ac0 77 20 70 61 72 61 6d 65 74 65 72 20 74 61 62 6c |w parameter tabl| 00000ad0 65 20 66 6f 72 20 64 69 66 66 65 72 65 6e 74 20 |e for different | 00000ae0 73 69 7a 65 20 64 72 69 76 65 73 20 2d 0d 74 68 |size drives -.th| 00000af0 65 20 70 61 72 61 6d 65 74 65 72 20 74 61 62 6c |e parameter tabl| 00000b00 65 20 69 73 20 61 74 20 74 68 65 20 65 6e 64 20 |e is at the end | 00000b10 6f 66 1a 20 74 68 65 1a 20 65 70 72 6f 6d 20 2d |of. the. eprom -| 00000b20 2e 20 20 54 68 65 20 6d 61 69 6e 20 64 69 73 61 |. The main disa| 00000b30 64 76 61 6e 74 61 67 65 0d 69 73 20 74 68 61 74 |dvantage.is that| 00000b40 20 74 68 65 20 73 74 65 70 20 72 61 74 65 20 6f | the step rate o| 00000b50 66 20 74 68 65 20 64 72 69 76 65 20 69 73 20 6e |f the drive is n| 00000b60 6f 74 1a 20 73 74 6f 72 65 64 1a 20 69 6e 1a 20 |ot. stored. in. | 00000b70 74 68 65 20 70 61 72 61 6d 65 74 65 72 20 74 61 |the parameter ta| 00000b80 62 6c 65 0d 62 75 74 1a 20 74 68 65 1a 20 63 6f |ble.but. the. co| 00000b90 6e 74 72 6f 6c 6c 65 72 1a 20 65 78 70 65 63 74 |ntroller. expect| 00000ba0 73 1a 20 74 68 65 1a 20 64 72 69 76 65 1a 20 73 |s. the. drive. s| 00000bb0 74 65 70 20 72 61 74 65 20 74 6f 20 62 65 20 73 |tep rate to be s| 00000bc0 75 70 70 6c 69 65 64 20 69 6e 20 74 68 65 0d 63 |upplied in the.c| 00000bd0 6f 6e 74 72 6f 6c 20 62 6c 6f 63 6b 20 73 65 6e |ontrol block sen| 00000be0 74 20 74 6f 20 69 74 20 62 79 20 41 44 46 53 1a |t to it by ADFS.| 00000bf0 20 77 68 69 63 68 1a 20 69 73 1a 20 61 6c 77 61 | which. is. alwa| 00000c00 79 73 1a 20 7a 65 72 6f 2e 1a 20 54 68 65 20 63 |ys. zero.. The c| 00000c10 6f 6e 74 72 6f 6c 6c 65 72 0d 69 6e 74 65 72 70 |ontroller.interp| 00000c20 72 65 74 73 1a 20 74 68 69 73 1a 20 61 73 20 61 |rets. this. as a| 00000c30 20 33 20 6d 73 65 63 20 73 74 65 70 20 72 61 74 | 3 msec step rat| 00000c40 65 20 77 68 69 63 68 2c 20 66 6f 72 20 6d 6f 64 |e which, for mod| 00000c50 65 72 6e 20 64 72 69 76 65 73 1a 20 73 75 63 68 |ern drives. such| 00000c60 1a 20 61 73 0d 52 6f 64 69 6d 65 20 32 30 30 20 |. as.Rodime 200 | 00000c70 73 65 72 69 65 73 2c 20 69 73 20 73 6c 6f 77 21 |series, is slow!| 00000c80 20 28 69 6e 20 66 61 63 74 20 74 68 65 20 44 54 | (in fact the DT| 00000c90 43 20 63 6f 6e 74 72 6f 6c 6c 65 72 73 20 64 65 |C controllers de| 00000ca0 66 61 75 6c 74 20 74 6f 20 33 20 6d 73 65 63 0d |fault to 3 msec.| 00000cb0 6f 6e 20 72 65 73 65 74 20 73 6f 20 74 68 65 79 |on reset so they| 00000cc0 20 73 65 65 6b 20 74 72 61 63 6b 20 7a 65 72 6f | seek track zero| 00000cd0 20 61 74 20 33 6d 73 65 63 20 73 74 65 70 20 72 | at 3msec step r| 00000ce0 61 74 65 20 77 68 65 6e 20 79 6f 75 20 70 72 65 |ate when you pre| 00000cf0 73 73 20 62 72 65 61 6b 29 2e 20 20 0d 0d 4f 70 |ss break). ..Op| 00000d00 74 69 6f 6e 61 6c 20 66 69 72 6d 77 61 72 65 20 |tional firmware | 00000d10 72 65 6c 65 61 73 65 20 31 30 34 37 39 33 0d 4a |release 104793.J| 00000d20 75 73 74 20 75 6e 64 65 72 20 38 6b 20 69 6e 20 |ust under 8k in | 00000d30 32 37 36 34 2e 20 20 54 68 65 20 64 72 69 76 65 |2764. The drive| 00000d40 1a 20 70 61 72 61 6d 65 74 65 72 73 20 61 72 65 |. parameters are| 00000d50 20 73 75 70 70 6c 69 65 64 20 61 74 20 66 6f 72 | supplied at for| 00000d60 6d 61 74 20 74 69 6d 65 2c 0d 69 6e 63 6c 75 64 |mat time,.includ| 00000d70 69 6e 67 20 74 68 65 20 73 74 65 70 20 72 61 74 |ing the step rat| 00000d80 65 2c 20 61 6e 64 20 61 72 65 20 77 72 69 74 74 |e, and are writt| 00000d90 65 6e 20 74 6f 1a 20 70 68 79 73 69 63 61 6c 1a |en to. physical.| 00000da0 20 74 72 61 63 6b 1a 20 7a 65 72 6f 2e 20 20 54 | track. zero. T| 00000db0 68 65 73 65 0d 70 61 72 61 6d 65 74 65 72 73 20 |hese.parameters | 00000dc0 61 72 65 20 72 65 61 64 20 66 72 6f 6d 20 74 68 |are read from th| 00000dd0 65 20 64 72 69 76 65 20 61 74 20 63 6f 6e 74 72 |e drive at contr| 00000de0 6f 6c 6c 65 72 20 72 65 73 65 74 2e 20 54 68 65 |oller reset. The| 00000df0 20 72 65 73 75 6c 74 20 69 73 20 74 68 61 74 0d | result is that.| 00000e00 74 68 65 1a 20 64 72 69 76 65 20 73 65 65 6b 73 |the. drive seeks| 00000e10 20 74 72 61 63 6b 20 7a 65 72 6f 20 61 74 20 74 | track zero at t| 00000e20 68 65 20 73 74 65 70 20 72 61 74 65 20 64 75 72 |he step rate dur| 00000e30 69 6e 67 20 66 6f 72 6d 61 74 74 69 6e 67 2e 20 |ing formatting. | 00000e40 20 4f 62 76 69 6f 75 73 6c 79 0d 6f 6e 65 20 63 | Obviously.one c| 00000e50 79 6c 69 6e 64 65 72 1a 20 6f 66 20 74 68 65 20 |ylinder. of the | 00000e60 77 69 6e 63 68 65 73 74 65 72 20 69 73 20 6c 6f |winchester is lo| 00000e70 73 74 20 74 6f 20 74 68 65 20 70 61 72 61 6d 65 |st to the parame| 00000e80 74 65 72 73 20 73 6f 20 74 68 65 20 64 72 69 76 |ters so the driv| 00000e90 65 20 68 61 73 0d 6f 6e 65 20 63 79 6c 69 6e 64 |e has.one cylind| 00000ea0 65 72 20 6c 65 73 73 1a 20 66 6f 72 20 74 68 65 |er less. for the| 00000eb0 20 75 73 65 72 20 2d 20 69 65 20 52 6f 64 69 6d | user - ie Rodim| 00000ec0 65 20 32 30 32 20 68 61 73 20 33 32 31 20 63 79 |e 202 has 321 cy| 00000ed0 6c 69 6e 64 65 72 73 20 62 75 74 20 77 68 65 6e |linders but when| 00000ee0 0d 69 6e 69 74 69 61 6c 69 73 65 64 20 68 61 73 |.initialised has| 00000ef0 20 33 32 30 20 61 76 61 69 6c 61 62 6c 65 20 74 | 320 available t| 00000f00 6f 20 74 68 65 20 75 73 65 72 2e 0d 0d 57 65 73 |o the user...Wes| 00000f10 74 65 72 6e 20 44 69 67 69 74 61 6c 20 28 6d 6f |tern Digital (mo| 00000f20 64 65 6c 73 20 57 44 31 30 30 31 2c 20 57 44 31 |dels WD1001, WD1| 00000f30 30 30 32 20 61 6e 64 20 57 44 31 30 30 33 29 0d |002 and WD1003).| 00000f40 0d 33 32 20 73 65 63 74 6f 72 73 20 70 65 72 20 |.32 sectors per | 00000f50 74 72 61 63 6b 0d 54 68 65 20 57 44 31 30 30 31 |track.The WD1001| 00000f60 20 63 6f 6e 74 72 6f 6c 6c 65 72 20 73 65 72 69 | controller seri| 00000f70 65 73 20 61 72 65 1a 20 62 65 6c 69 65 76 65 64 |es are. believed| 00000f80 20 74 6f 20 62 65 20 73 6f 6d 65 77 68 61 74 20 | to be somewhat | 00000f90 6e 6f 6e 20 73 74 61 6e 64 61 72 64 20 61 6e 64 |non standard and| 00000fa0 0d 77 69 6c 6c 20 6e 6f 74 20 77 6f 72 6b 20 77 |.will not work w| 00000fb0 69 74 68 20 74 68 65 20 42 65 65 62 2e 0d 0d 54 |ith the Beeb...T| 00000fc0 68 65 20 57 44 31 30 30 32 20 69 73 20 61 76 61 |he WD1002 is ava| 00000fd0 69 6c 61 62 6c 65 20 69 6e 20 74 77 6f 20 76 65 |ilable in two ve| 00000fe0 72 79 20 64 69 66 66 65 72 65 6e 74 20 76 65 72 |ry different ver| 00000ff0 73 69 6f 6e 73 3a 0d 0d 2d 57 58 31 20 73 75 66 |sions:..-WX1 suf| 00001000 66 69 78 2c 20 77 68 69 63 68 20 69 73 20 61 1a |fix, which is a.| 00001010 20 68 61 6c 66 20 6c 65 6e 67 74 68 20 70 6c 75 | half length plu| 00001020 67 20 69 6e 20 63 61 72 64 20 66 6f 72 20 74 68 |g in card for th| 00001030 65 20 49 42 4d 20 50 43 20 75 73 69 6e 67 20 53 |e IBM PC using S| 00001040 4d 44 0d 64 65 76 69 63 65 73 20 28 63 6f 73 74 |MD.devices (cost| 00001050 73 20 61 72 6f 75 6e 64 20 60 39 30 29 20 61 6e |s around `90) an| 00001060 64 20 6e 6f 74 20 73 75 69 74 61 62 6c 65 20 66 |d not suitable f| 00001070 6f 72 20 74 68 65 20 42 42 43 2c 20 61 6e 64 0d |or the BBC, and.| 00001080 0d 2d 53 48 44 20 73 75 66 66 69 78 2c 20 63 6f |.-SHD suffix, co| 00001090 6e 76 65 6e 74 69 6f 6e 61 6c 20 63 61 72 64 2e |nventional card.| 000010a0 20 20 54 68 65 20 57 44 31 30 30 32 2d 53 48 44 | The WD1002-SHD| 000010b0 20 77 69 6c 6c 20 77 6f 72 6b 20 77 69 74 68 20 | will work with | 000010c0 74 68 65 20 42 42 43 20 62 75 74 0d 74 68 65 72 |the BBC but.ther| 000010d0 65 20 61 72 65 20 70 72 6f 62 6c 65 6d 73 20 77 |e are problems w| 000010e0 69 74 68 20 73 74 6f 72 69 6e 67 1a 20 74 68 65 |ith storing. the| 000010f0 1a 20 64 72 69 76 65 1a 20 70 61 72 61 6d 65 74 |. drive. paramet| 00001100 65 72 73 1a 20 28 53 6f 6c 69 64 69 73 6b 20 75 |ers. (Solidisk u| 00001110 73 65 20 74 68 65 0d 31 30 30 32 20 77 69 74 68 |se the.1002 with| 00001120 20 74 68 65 69 72 20 57 69 6e 63 68 65 73 74 65 | their Wincheste| 00001130 72 20 73 79 73 74 65 6d 20 62 75 74 20 79 6f 75 |r system but you| 00001140 20 68 61 76 65 20 74 6f 20 75 73 65 20 20 20 74 | have to use t| 00001150 68 65 69 72 20 68 6f 73 74 20 61 64 61 70 74 6f |heir host adapto| 00001160 72 0d 61 6e 64 20 74 68 65 69 72 20 41 44 46 53 |r.and their ADFS| 00001170 20 2d 20 49 20 68 61 76 65 20 6e 6f 74 20 66 6f | - I have not fo| 00001180 75 6e 64 20 74 68 65 69 72 20 41 44 46 53 20 70 |und their ADFS p| 00001190 61 72 74 69 63 75 6c 61 72 6c 79 20 72 65 6c 69 |articularly reli| 000011a0 61 62 6c 65 21 29 0d 0d 54 68 65 20 57 44 31 30 |able!)..The WD10| 000011b0 30 33 20 69 73 20 61 20 6e 65 77 65 72 1a 20 63 |03 is a newer. c| 000011c0 6f 6e 74 72 6f 6c 6c 65 72 2c 1a 20 61 6e 64 1a |ontroller,. and.| 000011d0 20 61 70 70 61 72 65 6e 74 6c 79 1a 20 68 61 73 | apparently. has| 000011e0 20 61 20 6c 69 6e 6b 20 74 6f 20 6d 61 6b 65 20 | a link to make | 000011f0 69 74 0d 41 64 61 70 74 65 63 20 41 43 42 34 30 |it.Adaptec ACB40| 00001200 30 30 20 63 6f 6d 70 61 74 69 62 6c 65 2c 20 62 |00 compatible, b| 00001210 75 74 20 77 65 20 64 6f 6e 27 74 20 68 61 76 65 |ut we don't have| 00001220 20 61 6e 79 20 6d 6f 72 65 20 69 6e 66 6f 20 6f | any more info o| 00001230 6e 20 69 74 2e 2e 2e 0d 0d 57 44 31 30 30 32 2d |n it.....WD1002-| 00001240 53 48 44 20 64 69 73 61 64 76 61 6e 74 61 67 65 |SHD disadvantage| 00001250 73 3a 20 20 74 68 65 20 64 72 69 76 65 20 70 61 |s: the drive pa| 00001260 72 61 6d 65 74 65 72 73 1a 20 63 61 6e 6e 6f 74 |rameters. cannot| 00001270 1a 20 62 65 1a 20 73 74 6f 72 65 64 20 6f 6e 20 |. be. stored on | 00001280 74 68 65 0d 64 72 69 76 65 20 61 6e 64 20 63 61 |the.drive and ca| 00001290 6e 6e 6f 74 20 62 65 20 70 72 6f 67 72 61 6d 6d |nnot be programm| 000012a0 65 64 20 69 6e 74 6f 20 45 70 72 6f 6d 20 73 69 |ed into Eprom si| 000012b0 6e 63 65 1a 20 74 68 65 1a 20 63 6f 6e 74 72 6f |nce. the. contro| 000012c0 6c 6c 65 72 1a 20 64 6f 65 73 20 6e 6f 74 0d 68 |ller. does not.h| 000012d0 61 76 65 1a 20 61 6e 1a 20 45 70 72 6f 6d 1a 20 |ave. an. Eprom. | 000012e0 28 69 74 1a 20 75 73 65 73 1a 20 63 75 73 74 6f |(it. uses. custo| 000012f0 6d 1a 20 63 68 69 70 73 1a 20 69 6e 73 74 65 61 |m. chips. instea| 00001300 64 20 6f 66 20 62 65 69 6e 67 20 6d 69 63 72 6f |d of being micro| 00001310 70 72 6f 63 65 73 73 6f 72 0d 62 61 73 65 64 29 |processor.based)| 00001320 2e 0d 0d 53 6f 6c 69 64 69 73 6b 20 68 61 76 65 |...Solidisk have| 00001330 20 67 6f 74 20 61 72 6f 75 6e 64 20 74 68 65 1a | got around the.| 00001340 20 64 72 69 76 65 1a 20 70 61 72 61 6d 65 74 65 | drive. paramete| 00001350 72 73 1a 20 70 72 6f 62 6c 65 6d 1a 20 62 79 1a |rs. problem. by.| 00001360 20 73 74 6f 72 69 6e 67 20 74 68 65 6d 0d 69 6e | storing them.in| 00001370 73 69 64 65 20 74 68 65 20 41 44 46 53 20 52 4f |side the ADFS RO| 00001380 4d 2c 20 74 68 69 73 20 6d 65 61 6e 73 20 74 68 |M, this means th| 00001390 61 74 20 74 68 65 20 41 44 46 53 20 52 4f 4d 1a |at the ADFS ROM.| 000013a0 20 68 61 73 1a 20 74 6f 1a 20 62 65 20 73 75 70 | has. to. be sup| 000013b0 70 6c 69 65 64 20 62 79 0d 53 6f 6c 69 64 69 73 |plied by.Solidis| 000013c0 6b 1a 20 74 6f 20 6d 61 74 63 68 20 74 68 65 20 |k. to match the | 000013d0 64 72 69 76 65 2e 20 20 41 6e 20 45 70 72 6f 6d |drive. An Eprom| 000013e0 20 63 6f 75 6c 64 20 62 65 20 77 72 69 74 74 65 | could be writte| 000013f0 6e 20 66 6f 72 20 74 68 65 20 42 65 65 62 20 74 |n for the Beeb t| 00001400 68 61 74 0d 64 65 74 65 63 74 65 64 20 70 6f 77 |hat.detected pow| 00001410 65 72 20 75 70 20 6f 72 20 70 72 65 73 73 69 6e |er up or pressin| 00001420 67 20 42 52 45 41 4b 20 61 6e 64 20 74 68 65 6e |g BREAK and then| 00001430 20 73 65 6e 74 20 74 68 65 20 70 61 72 61 6d 65 | sent the parame| 00001440 74 65 72 73 20 74 6f 20 74 68 65 0d 63 6f 6e 74 |ters to the.cont| 00001450 72 6f 6c 6c 65 72 20 69 66 20 69 74 20 77 61 73 |roller if it was| 00001460 20 63 6f 6e 6e 65 63 74 65 64 20 2d 20 74 68 69 | connected - thi| 00001470 73 20 69 73 20 62 65 69 6e 67 20 69 6e 76 65 73 |s is being inves| 00001480 74 69 67 61 74 65 64 2e 0d 0d 59 6f 75 20 61 72 |tigated...You ar| 00001490 65 20 70 72 6f 62 61 62 6c 79 20 62 65 73 74 20 |e probably best | 000014a0 61 76 6f 69 64 69 6e 67 20 57 44 31 30 30 31 2f |avoiding WD1001/| 000014b0 31 30 30 32 20 63 6f 6e 74 72 6f 6c 6c 65 72 73 |1002 controllers| 000014c0 20 66 6f 72 20 61 20 42 42 43 0d 61 70 70 6c 69 | for a BBC.appli| 000014d0 63 61 74 69 6f 6e 20 62 65 63 61 75 73 65 20 6f |cation because o| 000014e0 66 20 74 68 65 20 70 72 6f 62 6c 65 6d 20 73 74 |f the problem st| 000014f0 6f 72 69 6e 67 20 74 68 65 20 64 72 69 76 65 20 |oring the drive | 00001500 70 61 72 61 6d 65 74 65 72 73 2e 0d 20 20 20 20 |parameters.. | 00001510 20 0d 4e 43 4c 20 4e 44 43 20 33 30 31 31 0d 0d | .NCL NDC 3011..| 00001520 4e 43 4c 20 6d 61 6b 65 20 61 20 73 6d 61 6c 6c |NCL make a small| 00001530 20 63 6f 6e 74 72 6f 6c 6c 65 72 20 74 68 61 74 | controller that| 00001540 20 6c 6f 6f 6b 73 20 6c 69 6b 65 20 69 74 20 73 | looks like it s| 00001550 68 6f 75 6c 64 20 77 6f 72 6b 20 6f 6b 61 79 20 |hould work okay | 00001560 77 69 74 68 20 74 68 65 0d 42 42 43 2c 20 69 74 |with the.BBC, it| 00001570 20 69 73 20 73 6f 6c 64 20 62 79 20 54 61 6d 65 | is sold by Tame| 00001580 20 4d 69 63 72 6f 53 79 73 74 65 6d 73 20 66 6f | MicroSystems fo| 00001590 72 20 61 72 6f 75 6e 64 20 60 31 32 30 2e 30 30 |r around `120.00| 000015a0 2c 20 62 75 74 20 61 73 20 79 65 74 20 6e 6f 20 |, but as yet no | 000015b0 6f 6e 65 0d 68 61 73 20 74 72 69 65 64 20 6f 6e |one.has tried on| 000015c0 65 2e 0d 0d 57 69 6e 63 68 65 73 74 65 72 20 64 |e...Winchester d| 000015d0 69 73 6b 20 73 79 73 74 65 6d 73 20 46 6f 72 20 |isk systems For | 000015e0 74 68 65 20 42 42 43 20 6d 69 63 72 6f 0d 0d 54 |the BBC micro..T| 000015f0 6f 20 69 6d 70 6c 65 6d 65 6e 74 20 61 20 77 69 |o implement a wi| 00001600 6e 63 68 65 73 74 65 72 20 64 69 73 6b 1a 20 73 |nchester disk. s| 00001610 79 73 74 65 6d 1a 20 6f 6e 1a 20 74 68 65 20 42 |ystem. on. the B| 00001620 42 43 20 6d 69 63 72 6f 20 28 6d 6f 64 65 6c 20 |BC micro (model | 00001630 42 20 6f 72 0d 42 2b 29 20 6f 72 20 4d 61 73 74 |B or.B+) or Mast| 00001640 65 72 20 79 6f 75 20 6e 65 65 64 20 74 68 65 20 |er you need the | 00001650 66 6f 6c 6c 6f 77 69 6e 67 3a 0d 0d 31 2e 09 41 |following:..1..A| 00001660 20 73 75 69 74 61 62 6c 65 20 64 72 69 76 65 20 | suitable drive | 00001670 28 61 6e 79 20 73 69 7a 65 20 75 70 74 6f 20 34 |(any size upto 4| 00001680 20 47 69 67 61 20 62 79 74 65 73 20 69 73 20 73 | Giga bytes is s| 00001690 75 70 70 6f 72 74 65 64 21 21 21 29 2e 0d 0d 32 |upported!!!)...2| 000016a0 2e 09 41 63 6f 72 6e 27 73 20 41 44 46 53 20 28 |..Acorn's ADFS (| 000016b0 41 64 76 61 6e 63 65 64 20 44 69 73 6b 20 46 69 |Advanced Disk Fi| 000016c0 6c 69 6e 67 1a 20 53 79 73 74 65 6d 29 1a 20 76 |ling. System). v| 000016d0 65 72 73 69 6f 6e 1a 20 31 2e 33 30 20 66 6f 72 |ersion. 1.30 for| 000016e0 0d 09 74 68 65 20 42 42 43 20 42 2f 42 2b 2c 20 |..the BBC B/B+, | 000016f0 6f 72 20 76 65 72 73 69 6f 6e 1a 20 31 2e 35 30 |or version. 1.50| 00001700 1a 20 66 6f 72 20 74 68 65 20 4d 61 73 74 65 72 |. for the Master| 00001710 20 28 61 6c 72 65 61 64 79 20 66 69 74 74 65 64 | (already fitted| 00001720 0d 09 69 6e 20 74 68 65 20 4d 61 73 74 65 72 20 |..in the Master | 00001730 31 32 38 29 2e 0d 0d 33 2e 09 41 20 73 75 69 74 |128)...3..A suit| 00001740 61 62 6c 65 20 63 6f 6e 74 72 6f 6c 6c 65 72 20 |able controller | 00001750 63 61 72 64 3a 20 44 54 43 2c 20 41 64 61 70 74 |card: DTC, Adapt| 00001760 65 63 20 6f 72 20 58 65 62 65 63 20 72 65 63 6f |ec or Xebec reco| 00001770 6d 6d 65 6e 64 65 64 2e 0d 0d 34 2e 09 48 6f 73 |mmended...4..Hos| 00001780 74 20 61 64 61 70 74 6f 72 20 28 64 65 74 61 69 |t adaptor (detai| 00001790 6c 65 64 20 6c 61 74 65 72 29 2e 0d 0d 35 2e 09 |led later)...5..| 000017a0 50 6f 77 65 72 20 73 75 70 70 6c 79 20 2d 20 79 |Power supply - y| 000017b0 6f 75 20 63 61 6e 6e 6f 74 1a 20 72 75 6e 1a 20 |ou cannot. run. | 000017c0 74 68 69 73 1a 20 6f 66 1a 20 74 68 65 1a 20 69 |this. of. the. i| 000017d0 6e 74 65 72 6e 61 6c 1a 20 70 6f 77 65 72 0d 09 |nternal. power..| 000017e0 73 75 70 70 6c 79 21 21 21 20 28 61 72 6f 75 6e |supply!!! (aroun| 000017f0 64 20 2b 35 56 20 61 74 20 35 41 20 61 6e 64 20 |d +5V at 5A and | 00001800 2b 31 32 56 20 61 74 20 35 41 20 73 68 6f 75 6c |+12V at 5A shoul| 00001810 64 20 73 75 66 66 69 63 65 29 0d |d suffice).| 0000181b
F/+HARD3.m0
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F/+HARD3.m2
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