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+goad2
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_42.ADF |
| Filename: | +goad2 |
| Read OK: | ✔ |
| File size: | 0A2B bytes |
| Load address: | 2B206576 |
| Exec address: | 64616F67 |
Duplicates
There is 1 duplicate copy of this file in the archive:
- Personal collection » Acorn ADFS disks » Electron_User_Group » EUG_42.ADF » +goad2
- Personal collection » Acorn hard disk » zipped_disks » elk06 » eug42/+goad2
File contents
**************************************************************************
Mr Ron Goad, 7 Chipstead House, Chipstead Road, Cosham, Hants PO6 3JJ.
Telephone 01705 - 382918
**************************************************************************
Dear Gus,
I wonder if any of our fellow members can make any comment or offer
any advice on the following minor problem regarding Joystick operation on
the BBC Master ???
Normally I use one of the Voltmace series of joysticks, which gives
faultless operation, on the BBC Master, or on the BBC B.
I have now just obtained a rather more complex Joystick, which acording to
the information on the original box is BBC B Compatible. Unfortunately I
do not have a copy of the user instruction book. The Joystick is a ROBO
SYSTEM - Robo Bitstik-Y003. In addition to the red-fire button there are
two other white buttons whose function I am not sure of, and in addition
to the normal funtion of the joystick lever, the knob can be rotated
through almost 360 degrees.
The problem that I have is that for some unknown reason, the basic
functions of Left-Right-Up and Down, ALL operate in REVERSE. So for
example to move to the left, the stick has to be pushed to the right !!!!
I am wondering if perhaps unlike a conventional Joystick, this one perhaps
should be software controlled. Any worthwile comments from perhaps a
member who has experience of this particular joystick would be much
appreciated.
Looking at the internal construction of the unit, in addition to
the left / right and up / down potentiometers, there is also a third
potentiometer which rotates when the joystick lever is twisted. In the
base of the unit there is a small interface pcb which contains a few R's
and C's and an Op-amp chip LM324, plus three presets marked X max +-, Y
max +-, and Z max +- .
If anyone can throw any light on this one, I shall be highly
delighted. Now for the real miracle - does anyone have a copy of the
handbook which may have been supplied with these Robo-Bitstiks ??????
Help, help, help, - beg borrow steal !!!!!!!!!!!!!
All the best,
Ron Goad.
25th Feb 99
~~~~~~~~~~~
The LM324 is a quad op-amp. The pin outs are 1: out 1, 2: -in 1, 3: +in 1
4: +V, 5: +in 2, 6: -in 2, 7: out 2, 8: out 3, 9: -in 3, 10: +in 3, 11:
gnd, 12: +in 4, 13: -in 4, 14: out 4
I apparently will work on 3V to 32V or +/- 1.5V to +/- 16V
Hope someone else can put some more light on it
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Mr | 00000050 52 6f 6e 20 47 6f 61 64 2c 20 37 20 43 68 69 70 |Ron Goad, 7 Chip| 00000060 73 74 65 61 64 20 48 6f 75 73 65 2c 20 43 68 69 |stead House, Chi| 00000070 70 73 74 65 61 64 20 52 6f 61 64 2c 20 43 6f 73 |pstead Road, Cos| 00000080 68 61 6d 2c 20 48 61 6e 74 73 20 50 4f 36 20 33 |ham, Hants PO6 3| 00000090 4a 4a 2e 0d 20 20 20 20 20 20 20 20 20 20 20 20 |JJ.. | 000000a0 20 20 20 20 20 20 20 20 20 20 20 54 65 6c 65 70 | Telep| 000000b0 68 6f 6e 65 20 30 31 37 30 35 20 2d 20 33 38 32 |hone 01705 - 382| 000000c0 39 31 38 0d 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |918.************| 000000d0 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************| * 00000100 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 0d 0d |**************..| 00000110 0d 44 65 61 72 20 47 75 73 2c 0d 0d 09 49 20 77 |.Dear Gus,...I w| 00000120 6f 6e 64 65 72 20 69 66 20 61 6e 79 20 6f 66 20 |onder if any of | 00000130 6f 75 72 20 66 65 6c 6c 6f 77 20 6d 65 6d 62 65 |our fellow membe| 00000140 72 73 20 63 61 6e 20 6d 61 6b 65 20 61 6e 79 20 |rs can make any | 00000150 63 6f 6d 6d 65 6e 74 20 6f 72 20 6f 66 66 65 72 |comment or offer| 00000160 0d 61 6e 79 20 61 64 76 69 63 65 20 6f 6e 20 74 |.any advice on t| 00000170 68 65 20 66 6f 6c 6c 6f 77 69 6e 67 20 6d 69 6e |he following min| 00000180 6f 72 20 70 72 6f 62 6c 65 6d 20 20 72 65 67 61 |or problem rega| 00000190 72 64 69 6e 67 20 4a 6f 79 73 74 69 63 6b 20 6f |rding Joystick o| 000001a0 70 65 72 61 74 69 6f 6e 20 6f 6e 0d 74 68 65 20 |peration on.the | 000001b0 42 42 43 20 4d 61 73 74 65 72 20 3f 3f 3f 09 0d |BBC Master ???..| 000001c0 0d 09 4e 6f 72 6d 61 6c 6c 79 20 49 20 75 73 65 |..Normally I use| 000001d0 20 6f 6e 65 20 6f 66 20 74 68 65 20 56 6f 6c 74 | one of the Volt| 000001e0 6d 61 63 65 20 73 65 72 69 65 73 20 6f 66 20 6a |mace series of j| 000001f0 6f 79 73 74 69 63 6b 73 2c 20 77 68 69 63 68 20 |oysticks, which | 00000200 67 69 76 65 73 0d 66 61 75 6c 74 6c 65 73 73 20 |gives.faultless | 00000210 6f 70 65 72 61 74 69 6f 6e 2c 20 6f 6e 20 74 68 |operation, on th| 00000220 65 20 42 42 43 20 4d 61 73 74 65 72 2c 20 6f 72 |e BBC Master, or| 00000230 20 6f 6e 20 74 68 65 20 42 42 43 20 42 2e 20 20 | on the BBC B. | 00000240 20 20 20 20 20 20 09 0d 49 20 68 61 76 65 20 6e | ..I have n| 00000250 6f 77 20 6a 75 73 74 20 6f 62 74 61 69 6e 65 64 |ow just obtained| 00000260 20 61 20 72 61 74 68 65 72 20 6d 6f 72 65 20 63 | a rather more c| 00000270 6f 6d 70 6c 65 78 20 4a 6f 79 73 74 69 63 6b 2c |omplex Joystick,| 00000280 20 77 68 69 63 68 20 61 63 6f 72 64 69 6e 67 20 | which acording | 00000290 74 6f 0d 74 68 65 1a 20 69 6e 66 6f 72 6d 61 74 |to.the. informat| 000002a0 69 6f 6e 1a 20 6f 6e 20 74 68 65 20 6f 72 69 67 |ion. on the orig| 000002b0 69 6e 61 6c 20 62 6f 78 20 69 73 20 42 42 43 20 |inal box is BBC | 000002c0 42 20 43 6f 6d 70 61 74 69 62 6c 65 2e 20 55 6e |B Compatible. Un| 000002d0 66 6f 72 74 75 6e 61 74 65 6c 79 20 49 0d 64 6f |fortunately I.do| 000002e0 20 6e 6f 74 20 68 61 76 65 20 61 20 63 6f 70 79 | not have a copy| 000002f0 1a 20 6f 66 1a 20 74 68 65 1a 20 75 73 65 72 20 |. of. the. user | 00000300 69 6e 73 74 72 75 63 74 69 6f 6e 20 62 6f 6f 6b |instruction book| 00000310 2e 20 54 68 65 20 4a 6f 79 73 74 69 63 6b 20 69 |. The Joystick i| 00000320 73 20 61 20 52 4f 42 4f 0d 53 59 53 54 45 4d 20 |s a ROBO.SYSTEM | 00000330 2d 20 52 6f 62 6f 20 42 69 74 73 74 69 6b 2d 59 |- Robo Bitstik-Y| 00000340 30 30 33 2e 20 20 49 6e 1a 20 61 64 64 69 74 69 |003. In. additi| 00000350 6f 6e 20 74 6f 20 74 68 65 20 72 65 64 2d 66 69 |on to the red-fi| 00000360 72 65 20 62 75 74 74 6f 6e 20 74 68 65 72 65 20 |re button there | 00000370 61 72 65 0d 74 77 6f 20 6f 74 68 65 72 20 77 68 |are.two other wh| 00000380 69 74 65 20 62 75 74 74 6f 6e 73 20 77 68 6f 73 |ite buttons whos| 00000390 65 20 66 75 6e 63 74 69 6f 6e 1a 20 49 1a 20 61 |e function. I. a| 000003a0 6d 20 6e 6f 74 20 73 75 72 65 20 6f 66 2c 20 61 |m not sure of, a| 000003b0 6e 64 20 69 6e 20 61 64 64 69 74 69 6f 6e 0d 74 |nd in addition.t| 000003c0 6f 20 74 68 65 20 6e 6f 72 6d 61 6c 20 66 75 6e |o the normal fun| 000003d0 74 69 6f 6e 20 6f 66 1a 20 74 68 65 1a 20 6a 6f |tion of. the. jo| 000003e0 79 73 74 69 63 6b 1a 20 6c 65 76 65 72 2c 1a 20 |ystick. lever,. | 000003f0 74 68 65 1a 20 6b 6e 6f 62 1a 20 63 61 6e 20 62 |the. knob. can b| 00000400 65 20 72 6f 74 61 74 65 64 0d 74 68 72 6f 75 67 |e rotated.throug| 00000410 68 20 61 6c 6d 6f 73 74 20 33 36 30 20 64 65 67 |h almost 360 deg| 00000420 72 65 65 73 2e 0d 0d 09 54 68 65 20 70 72 6f 62 |rees....The prob| 00000430 6c 65 6d 20 74 68 61 74 1a 20 49 20 68 61 76 65 |lem that. I have| 00000440 20 69 73 20 74 68 61 74 20 66 6f 72 20 73 6f 6d | is that for som| 00000450 65 20 75 6e 6b 6e 6f 77 6e 20 72 65 61 73 6f 6e |e unknown reason| 00000460 2c 20 74 68 65 20 62 61 73 69 63 0d 66 75 6e 63 |, the basic.func| 00000470 74 69 6f 6e 73 20 6f 66 20 4c 65 66 74 2d 52 69 |tions of Left-Ri| 00000480 67 68 74 2d 55 70 20 61 6e 64 1a 20 44 6f 77 6e |ght-Up and. Down| 00000490 2c 1a 20 41 4c 4c 1a 20 6f 70 65 72 61 74 65 1a |,. ALL. operate.| 000004a0 20 69 6e 1a 20 52 45 56 45 52 53 45 2e 1a 20 53 | in. REVERSE.. S| 000004b0 6f 1a 20 66 6f 72 0d 65 78 61 6d 70 6c 65 20 74 |o. for.example t| 000004c0 6f 20 6d 6f 76 65 20 74 6f 20 74 68 65 20 6c 65 |o move to the le| 000004d0 66 74 2c 20 74 68 65 20 73 74 69 63 6b 20 68 61 |ft, the stick ha| 000004e0 73 20 74 6f 20 62 65 20 70 75 73 68 65 64 20 74 |s to be pushed t| 000004f0 6f 20 74 68 65 20 72 69 67 68 74 20 21 21 21 21 |o the right !!!!| 00000500 0d 49 20 61 6d 20 77 6f 6e 64 65 72 69 6e 67 20 |.I am wondering | 00000510 69 66 20 70 65 72 68 61 70 73 20 75 6e 6c 69 6b |if perhaps unlik| 00000520 65 20 61 20 63 6f 6e 76 65 6e 74 69 6f 6e 61 6c |e a conventional| 00000530 20 4a 6f 79 73 74 69 63 6b 2c 20 74 68 69 73 20 | Joystick, this | 00000540 6f 6e 65 20 70 65 72 68 61 70 73 0d 73 68 6f 75 |one perhaps.shou| 00000550 6c 64 1a 20 62 65 1a 20 73 6f 66 74 77 61 72 65 |ld. be. software| 00000560 1a 20 63 6f 6e 74 72 6f 6c 6c 65 64 2e 1a 20 41 |. controlled.. A| 00000570 6e 79 1a 20 77 6f 72 74 68 77 69 6c 65 1a 20 63 |ny. worthwile. c| 00000580 6f 6d 6d 65 6e 74 73 20 66 72 6f 6d 20 70 65 72 |omments from per| 00000590 68 61 70 73 20 61 0d 6d 65 6d 62 65 72 1a 20 77 |haps a.member. w| 000005a0 68 6f 1a 20 68 61 73 1a 20 65 78 70 65 72 69 65 |ho. has. experie| 000005b0 6e 63 65 20 6f 66 20 74 68 69 73 20 70 61 72 74 |nce of this part| 000005c0 69 63 75 6c 61 72 1a 20 6a 6f 79 73 74 69 63 6b |icular. joystick| 000005d0 1a 20 77 6f 75 6c 64 1a 20 62 65 1a 20 6d 75 63 |. would. be. muc| 000005e0 68 0d 61 70 70 72 65 63 69 61 74 65 64 2e 0d 0d |h.appreciated...| 000005f0 09 4c 6f 6f 6b 69 6e 67 20 61 74 20 74 68 65 20 |.Looking at the | 00000600 69 6e 74 65 72 6e 61 6c 20 63 6f 6e 73 74 72 75 |internal constru| 00000610 63 74 69 6f 6e 1a 20 6f 66 1a 20 74 68 65 1a 20 |ction. of. the. | 00000620 75 6e 69 74 2c 20 69 6e 20 61 64 64 69 74 69 6f |unit, in additio| 00000630 6e 20 74 6f 0d 74 68 65 20 6c 65 66 74 20 2f 20 |n to.the left / | 00000640 72 69 67 68 74 20 61 6e 64 20 75 70 20 2f 20 64 |right and up / d| 00000650 6f 77 6e 1a 20 70 6f 74 65 6e 74 69 6f 6d 65 74 |own. potentiomet| 00000660 65 72 73 2c 1a 20 74 68 65 72 65 1a 20 69 73 1a |ers,. there. is.| 00000670 20 61 6c 73 6f 1a 20 61 1a 20 74 68 69 72 64 0d | also. a. third.| 00000680 70 6f 74 65 6e 74 69 6f 6d 65 74 65 72 1a 20 77 |potentiometer. w| 00000690 68 69 63 68 1a 20 72 6f 74 61 74 65 73 1a 20 77 |hich. rotates. w| 000006a0 68 65 6e 1a 20 74 68 65 20 6a 6f 79 73 74 69 63 |hen. the joystic| 000006b0 6b 20 6c 65 76 65 72 20 69 73 20 74 77 69 73 74 |k lever is twist| 000006c0 65 64 2e 20 49 6e 20 74 68 65 0d 62 61 73 65 20 |ed. In the.base | 000006d0 6f 66 20 74 68 65 20 75 6e 69 74 20 74 68 65 72 |of the unit ther| 000006e0 65 1a 20 69 73 1a 20 61 20 73 6d 61 6c 6c 20 69 |e. is. a small i| 000006f0 6e 74 65 72 66 61 63 65 20 70 63 62 20 77 68 69 |nterface pcb whi| 00000700 63 68 20 63 6f 6e 74 61 69 6e 73 20 61 20 66 65 |ch contains a fe| 00000710 77 20 52 27 73 0d 61 6e 64 20 43 27 73 20 61 6e |w R's.and C's an| 00000720 64 20 61 6e 20 4f 70 2d 61 6d 70 20 63 68 69 70 |d an Op-amp chip| 00000730 20 4c 4d 33 32 34 2c 1a 20 70 6c 75 73 1a 20 74 | LM324,. plus. t| 00000740 68 72 65 65 20 70 72 65 73 65 74 73 20 6d 61 72 |hree presets mar| 00000750 6b 65 64 20 20 58 20 6d 61 78 20 2b 2d 2c 20 59 |ked X max +-, Y| 00000760 0d 6d 61 78 20 2b 2d 2c 20 61 6e 64 20 5a 20 6d |.max +-, and Z m| 00000770 61 78 20 2b 2d 20 2e 0d 0d 09 49 66 1a 20 61 6e |ax +- ....If. an| 00000780 79 6f 6e 65 1a 20 63 61 6e 1a 20 74 68 72 6f 77 |yone. can. throw| 00000790 1a 20 61 6e 79 20 6c 69 67 68 74 20 6f 6e 20 74 |. any light on t| 000007a0 68 69 73 20 6f 6e 65 2c 1a 20 49 1a 20 73 68 61 |his one,. I. sha| 000007b0 6c 6c 20 62 65 1a 20 68 69 67 68 6c 79 0d 64 65 |ll be. highly.de| 000007c0 6c 69 67 68 74 65 64 2e 20 4e 6f 77 20 66 6f 72 |lighted. Now for| 000007d0 20 74 68 65 20 72 65 61 6c 1a 20 6d 69 72 61 63 | the real. mirac| 000007e0 6c 65 1a 20 2d 1a 20 64 6f 65 73 1a 20 61 6e 79 |le. -. does. any| 000007f0 6f 6e 65 1a 20 68 61 76 65 1a 20 61 20 63 6f 70 |one. have. a cop| 00000800 79 20 6f 66 20 74 68 65 0d 68 61 6e 64 62 6f 6f |y of the.handboo| 00000810 6b 20 77 68 69 63 68 20 6d 61 79 20 68 61 76 65 |k which may have| 00000820 20 62 65 65 6e 20 73 75 70 70 6c 69 65 64 20 77 | been supplied w| 00000830 69 74 68 20 74 68 65 73 65 20 52 6f 62 6f 2d 42 |ith these Robo-B| 00000840 69 74 73 74 69 6b 73 20 3f 3f 3f 3f 3f 3f 0d 48 |itstiks ??????.H| 00000850 65 6c 70 2c 20 68 65 6c 70 2c 20 68 65 6c 70 2c |elp, help, help,| 00000860 20 2d 20 62 65 67 20 62 6f 72 72 6f 77 20 73 74 | - beg borrow st| 00000870 65 61 6c 20 20 20 21 21 21 21 21 21 21 21 21 21 |eal !!!!!!!!!!| 00000880 21 21 21 0d 0d 0d 20 20 20 20 20 20 20 20 20 20 |!!!... | 00000890 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 000008a0 20 20 20 41 6c 6c 20 74 68 65 20 62 65 73 74 2c | All the best,| 000008b0 0d 0d 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |.. | 000008c0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | * 000008e0 20 52 6f 6e 20 47 6f 61 64 2e 0d 0d 32 35 74 68 | Ron Goad...25th| 000008f0 20 46 65 62 20 39 39 0d 7e 7e 7e 7e 7e 7e 7e 7e | Feb 99.~~~~~~~~| 00000900 7e 7e 7e 0d 1c 54 68 65 20 4c 4d 33 32 34 20 69 |~~~..The LM324 i| 00000910 73 20 61 20 71 75 61 64 20 6f 70 2d 61 6d 70 2e |s a quad op-amp.| 00000920 20 54 68 65 20 70 69 6e 20 6f 75 74 73 20 61 72 | The pin outs ar| 00000930 65 20 31 3a 20 6f 75 74 20 31 2c 20 32 3a 20 2d |e 1: out 1, 2: -| 00000940 69 6e 20 31 2c 20 33 3a 20 2b 69 6e 20 31 0d 34 |in 1, 3: +in 1.4| 00000950 3a 20 2b 56 2c 20 35 3a 20 2b 69 6e 20 32 2c 20 |: +V, 5: +in 2, | 00000960 36 3a 20 2d 69 6e 20 32 2c 20 37 3a 20 6f 75 74 |6: -in 2, 7: out| 00000970 20 32 2c 20 38 3a 20 6f 75 74 20 33 2c 20 39 3a | 2, 8: out 3, 9:| 00000980 20 2d 69 6e 20 33 2c 20 31 30 3a 20 2b 69 6e 20 | -in 3, 10: +in | 00000990 33 2c 20 31 31 3a 0d 67 6e 64 2c 20 31 32 3a 20 |3, 11:.gnd, 12: | 000009a0 2b 69 6e 20 34 2c 20 31 33 3a 20 2d 69 6e 20 34 |+in 4, 13: -in 4| 000009b0 2c 20 31 34 3a 20 6f 75 74 20 34 0d 0d 49 20 61 |, 14: out 4..I a| 000009c0 70 70 61 72 65 6e 74 6c 79 20 77 69 6c 6c 20 77 |pparently will w| 000009d0 6f 72 6b 20 6f 6e 20 33 56 20 74 6f 20 33 32 56 |ork on 3V to 32V| 000009e0 20 6f 72 20 2b 2f 2d 20 31 2e 35 56 20 74 6f 20 | or +/- 1.5V to | 000009f0 2b 2f 2d 20 31 36 56 0d 0d 48 6f 70 65 20 73 6f |+/- 16V..Hope so| 00000a00 6d 65 6f 6e 65 20 65 6c 73 65 20 63 61 6e 20 70 |meone else can p| 00000a10 75 74 20 73 6f 6d 65 20 6d 6f 72 65 20 6c 69 67 |ut some more lig| 00000a20 68 74 20 6f 6e 20 69 74 1c 0d 0d |ht on it...| 00000a2b
+goad2.m0
+goad2.m1
+goad2.m2
+goad2.m4
+goad2.m5
.