Home » Archimedes archive » Acorn User » AU 1996-02.adf » Regulars » RuntheRISC/!DVM/!Help

RuntheRISC/!DVM/!Help

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.

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Tape/disk: Home » Archimedes archive » Acorn User » AU 1996-02.adf » Regulars
Filename: RuntheRISC/!DVM/!Help
Read OK:
File size: 034F bytes
Load address: 0000
Exec address: 0000
File contents
DVM (Digital Volt Meter) Monitor V1.0
Copyright Mike Cook 1996 - Musbury Consultants - all rights reserved
01706 216701
5 Helmshore Rd,
Haslingden,
Rossendale,
Lancs.
BB4 4BG

This application allows you to read the "RUN THE RISC" DVM on the Printer Port,
and record the results in a text file.

You need a bidirection Printer Port.
You need the hardware as described in the Feb. 96 issue of Acorn User.

Maximum sample rate is every 0.3 second, the application will not let you set
a faster rate. However at this speed there is a drift error of about -0.0007 volts,
therefore for best results always sample at 0.5 second or slower.
Before pressing "Record" you must first select a file path by draging a Save Icon.
"Pause" will suspend recording and "Halt" will close the recording file.
Note you can only press "Halt" when "Pause" is not active.
00000000  44 56 4d 20 28 44 69 67  69 74 61 6c 20 56 6f 6c  |DVM (Digital Vol|
00000010  74 20 4d 65 74 65 72 29  20 4d 6f 6e 69 74 6f 72  |t Meter) Monitor|
00000020  20 56 31 2e 30 0a 43 6f  70 79 72 69 67 68 74 20  | V1.0.Copyright |
00000030  4d 69 6b 65 20 43 6f 6f  6b 20 31 39 39 36 20 2d  |Mike Cook 1996 -|
00000040  20 4d 75 73 62 75 72 79  20 43 6f 6e 73 75 6c 74  | Musbury Consult|
00000050  61 6e 74 73 20 2d 20 61  6c 6c 20 72 69 67 68 74  |ants - all right|
00000060  73 20 72 65 73 65 72 76  65 64 0a 30 31 37 30 36  |s reserved.01706|
00000070  20 32 31 36 37 30 31 0a  35 20 48 65 6c 6d 73 68  | 216701.5 Helmsh|
00000080  6f 72 65 20 52 64 2c 0a  48 61 73 6c 69 6e 67 64  |ore Rd,.Haslingd|
00000090  65 6e 2c 0a 52 6f 73 73  65 6e 64 61 6c 65 2c 0a  |en,.Rossendale,.|
000000a0  4c 61 6e 63 73 2e 0a 42  42 34 20 34 42 47 0a 0a  |Lancs..BB4 4BG..|
000000b0  54 68 69 73 20 61 70 70  6c 69 63 61 74 69 6f 6e  |This application|
000000c0  20 61 6c 6c 6f 77 73 20  79 6f 75 20 74 6f 20 72  | allows you to r|
000000d0  65 61 64 20 74 68 65 20  22 52 55 4e 20 54 48 45  |ead the "RUN THE|
000000e0  20 52 49 53 43 22 20 44  56 4d 20 6f 6e 20 74 68  | RISC" DVM on th|
000000f0  65 20 50 72 69 6e 74 65  72 20 50 6f 72 74 2c 0a  |e Printer Port,.|
00000100  61 6e 64 20 72 65 63 6f  72 64 20 74 68 65 20 72  |and record the r|
00000110  65 73 75 6c 74 73 20 69  6e 20 61 20 74 65 78 74  |esults in a text|
00000120  20 66 69 6c 65 2e 0a 0a  59 6f 75 20 6e 65 65 64  | file...You need|
00000130  20 61 20 62 69 64 69 72  65 63 74 69 6f 6e 20 50  | a bidirection P|
00000140  72 69 6e 74 65 72 20 50  6f 72 74 2e 0a 59 6f 75  |rinter Port..You|
00000150  20 6e 65 65 64 20 74 68  65 20 68 61 72 64 77 61  | need the hardwa|
00000160  72 65 20 61 73 20 64 65  73 63 72 69 62 65 64 20  |re as described |
00000170  69 6e 20 74 68 65 20 46  65 62 2e 20 39 36 20 69  |in the Feb. 96 i|
00000180  73 73 75 65 20 6f 66 20  41 63 6f 72 6e 20 55 73  |ssue of Acorn Us|
00000190  65 72 2e 0a 0a 4d 61 78  69 6d 75 6d 20 73 61 6d  |er...Maximum sam|
000001a0  70 6c 65 20 72 61 74 65  20 69 73 20 65 76 65 72  |ple rate is ever|
000001b0  79 20 30 2e 33 20 73 65  63 6f 6e 64 2c 20 74 68  |y 0.3 second, th|
000001c0  65 20 61 70 70 6c 69 63  61 74 69 6f 6e 20 77 69  |e application wi|
000001d0  6c 6c 20 6e 6f 74 20 6c  65 74 20 79 6f 75 20 73  |ll not let you s|
000001e0  65 74 0a 61 20 66 61 73  74 65 72 20 72 61 74 65  |et.a faster rate|
000001f0  2e 20 48 6f 77 65 76 65  72 20 61 74 20 74 68 69  |. However at thi|
00000200  73 20 73 70 65 65 64 20  74 68 65 72 65 20 69 73  |s speed there is|
00000210  20 61 20 64 72 69 66 74  20 65 72 72 6f 72 20 6f  | a drift error o|
00000220  66 20 61 62 6f 75 74 20  2d 30 2e 30 30 30 37 20  |f about -0.0007 |
00000230  76 6f 6c 74 73 2c 0a 74  68 65 72 65 66 6f 72 65  |volts,.therefore|
00000240  20 66 6f 72 20 62 65 73  74 20 72 65 73 75 6c 74  | for best result|
00000250  73 20 61 6c 77 61 79 73  20 73 61 6d 70 6c 65 20  |s always sample |
00000260  61 74 20 30 2e 35 20 73  65 63 6f 6e 64 20 6f 72  |at 0.5 second or|
00000270  20 73 6c 6f 77 65 72 2e  0a 42 65 66 6f 72 65 20  | slower..Before |
00000280  70 72 65 73 73 69 6e 67  20 22 52 65 63 6f 72 64  |pressing "Record|
00000290  22 20 79 6f 75 20 6d 75  73 74 20 66 69 72 73 74  |" you must first|
000002a0  20 73 65 6c 65 63 74 20  61 20 66 69 6c 65 20 70  | select a file p|
000002b0  61 74 68 20 62 79 20 64  72 61 67 69 6e 67 20 61  |ath by draging a|
000002c0  20 53 61 76 65 20 49 63  6f 6e 2e 0a 22 50 61 75  | Save Icon.."Pau|
000002d0  73 65 22 20 77 69 6c 6c  20 73 75 73 70 65 6e 64  |se" will suspend|
000002e0  20 72 65 63 6f 72 64 69  6e 67 20 61 6e 64 20 22  | recording and "|
000002f0  48 61 6c 74 22 20 77 69  6c 6c 20 63 6c 6f 73 65  |Halt" will close|
00000300  20 74 68 65 20 72 65 63  6f 72 64 69 6e 67 20 66  | the recording f|
00000310  69 6c 65 2e 0a 4e 6f 74  65 20 79 6f 75 20 63 61  |ile..Note you ca|
00000320  6e 20 6f 6e 6c 79 20 70  72 65 73 73 20 22 48 61  |n only press "Ha|
00000330  6c 74 22 20 77 68 65 6e  20 22 50 61 75 73 65 22  |lt" when "Pause"|
00000340  20 69 73 20 6e 6f 74 20  61 63 74 69 76 65 2e     | is not active.|
0000034f