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20-03-88/SCOPEL2
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 » CEEFAX disks » telesoftware6.adl |
| Filename: | 20-03-88/SCOPEL2 |
| Read OK: | ✔ |
| File size: | 5A42 bytes |
| Load address: | FFFF1900 |
| Exec address: | FFFF8023 |
Duplicates
There is 1 duplicate copy of this file in the archive:
- CEEFAX disks » telesoftware6.adl » 20-03-88/SCOPEL2
- CEEFAX disks » telesoftware9.adl » 30-09-88/SCOPEL2
File contents
0*|"���7`````````````````````````5� ���5�DATASCOPE loader�part2 �5� ���5�(C) M.J.GOLDFINCH�1987 �5� ���uppppppppppppppppppppppppp5�
10DIML%40:ONERRORPROCe
20PROCI:MODE7:VDU23,1,0;0;0;0;23,0,2,52;0;0;0;:PROCG:PROCD:END
1000DEFPROCI:IFZ%=888888ENDPROCELSEVDU12,7,31,0,12:PRINT"���j�Datascope manual�part2�must be �5"'"���j�chained by�part 1�of the manual�5"''"���j�Part 1 now loading. �5"
1010P%=0:U%=0:Z%=0:CHAIN"ScopeL1":ENDPROC
1020DEFPROCJ($L%):X%=L%:Y%=L%DIV256:CALL&FFF7:ENDPROC
1030DEFPROCA:VDU7,12:PROCJ("FX21"):ENDPROC
1040DEFPROCDPROCT:IFP%<13PROCK
1050PRINTTAB(0,6)"���j�Loading�Datascope main program. �5":IFQ%PRINT"���55�Second processor 65C02 on line�jj"ELSEIFR%PRINT"���55�Shadow mode available �jj"ELSEPRINT"���55�No tube: downloading automatic�jj"
1060A%=0:B%=0:D%=0:E%=0:Z%=-1:CHAIN"DScopeM":ENDPROC
1070DEFPROCKPRINTTAB(0,6)"���j�Loading Scopel1�pages 2 _ 7. �5":U%=808080:Z%=777777:CHAIN"ScopeL1":ENDPROC
1080DEFPROCTCLS:PRINTTAB(0,6)"���j�Insert�Datascope�master disc �5"'"���j�in Drive 0."SPC19"�5"''"���j�����key�<SPACE>"SPC15"�5":REPEATUNTILINKEY-99:CLS:PROCJ("DR.0"):ENDPROC
1090DEFPROCG:e%=0:_%=0:K%=0:IFNOTZ%=888888 P%=1
1100G%=0:I%=0:IFP%<1ORP%>13P%=1
1110IFP%=1PROCMELSEIFP%=8PROCRELSEIFP%=9PROCSELSEIFP%=10PROCNELSEIFP%=11PROCOELSEIFP%=12PROCPELSEIFP%=13PROCQELSEIFP%>1ANDP%<8ENDPROCELSEIFP%>13PROCM
1120IFK%=3THEN1190
1130IFG%=-1ANDK%<>0THEN1220
1140PROCJ("FX21"):PROCJ("FX202,32"):E$=GET$:IFE$=","P%=P%-1
1150IFE$="."P%=P%+1
1160IFE$=":"P%=1
1170IFE$="H"PROCW
1180IFE$="P"THEN1190ELSE1100
1190PROCJ("FX21"):REPEATPRINTTAB(26,23)"�����page�?��":VDU7:H%=GET:IFH%<58 P%=H%-48ELSEP%=H%-55
1200UNTILP%>0ANDP%<14:IFI%PROCF
1210K%=0:I%=0
1220IFK%=-1P%=P%-1ELSEIFK%=1P%=P%+1ELSEIFK%=2P%=1
1230GOTO1100:ENDPROC:END
1240DEFPROCF:IFH%<58VDU31,0,H%-44,&82,&9D,&88,&84,H%,&81,31,36,H%-44,&82,&88,&9C,&FFELSEVDU31,0,H%-51,&82,&9D,&88,&84,H%,&81,31,36,H%-51,&82,&88,&9C,&FF
1250TIME=0:REPEATUNTILTIME>200ORINKEY-97:ENDPROC
1260DEFPROCE(D%):PROCL:D%=D%*100:G%=0:K%=0:TIME=0:REPEATIFINKEY-97THENTIME=D%
1270IFINKEY-103G%=-1:K%=-1:TIME=D%
1280IFINKEY-104G%=-1:K%=1:TIME=D%
1290IFINKEY-73G%=-1:K%=2:TIME=D%
1300IFINKEY-56G%=-1:K%=3:TIME=D%
1310IFINKEY-85PROCW
1320IFINKEY-82AND_%PROCV
1330IFINKEY-102ANDe%PROCX
1340UNTILTIME>=D%:VDU7:*FX15,1
1350ENDPROC
1360DEFPROCLPRINTTAB(23,22)"���TAB�]":ENDPROC
1370DEFPROCeVDU7:IFERR=17ANDINKEY-119THEN1390ELSEIFERR=17VDU3:RUN
1380VDU3,7,12,31,0,12:REPORT:PRINT"�@�";ERL:END
1390PROCJ("FX4"):PROCJ("FX12"):VDU22,7:END:ENDPROC
1400DEFPROCU(F%):F%=F%*100:TIME=0:*FX21
1410REPEATIFINKEY0<>-1THENTIME=F%
1420UNTILTIME>F%:VDU7,12,26:ENDPROC
1430DEFPROCV:FOR`%=2TO21:PRINTTAB(1,`%)"�":NEXT:VDU7:_%=0:ENDPROC
1440DEFPROCX:R%=0:PRINTTAB(23,18)"��shadow mode off":e%=0:VDU7:ENDPROC
1450DEFPROCM I%=-1:PROCA:PRINT"����������������������������������"'"������������������������"'"������������������꽮"'"������ ����������������������� �index"'"����������������������������������"'"��p.1:index ���sub-pages";
1460PRINT"� � 2:introduction 3��� � 3:parameters option 2��� � 4:graphics mode, data drive 1��� � 5:colour and axes options 4��� � 6:monitor ADC port 5��";
1470PRINT"� � 7:edit: erase/overlay/bargraph 5��� � 8:print data 2��� � 9:data storage 1: screen images 3��� � A:data storage 2: data files 3��� � B:data recall: images and files 3��";
1480PRINT"� � C:applications & technical data 16����� D:load�Datascope main program 1��"'"���k���>�next page �<�previous page ����e ��TAB�scroll sub-page���*�index � ����y���P�select page�( �H�print page �";:PROCB("1")
1490PRINTTAB(0,24)"����5�Part 2 contains pages 8 to C�5 ��";:ENDPROC
1500DEFPROCRPROCA:PROCC(&87,&95,&91,&84,4,"Print data 1",-1,&94):VDU11:PRINT"�� Hard copy"'" �`````````�"'"� A printout of the current screen may �be produced if required."'" Before printing the parameters entered";
1510PRINT" in option 2 may be displayed on screen. A repeat hard copy option is given by the software, after the screen dump is completed."'"� This software includes a machine code �program to hard copy Mode 4 / 1 screens";
1520PRINT"�to an�EPSON <FX80> printer.��This is �located as appropriate to the ACORN"'"�machine in use."'" �When the Datascope disc is first used the machine code should be saved when prompted. If the BBC system in use is"
1530PRINT" subsequently altered this code should again be saved."'SPC31"���8.2�>�";:PROCB("8.1"):PROCE(120):IFG%ENDPROC
1540PROCA:PROCC(&87,&95,&91,&84,4,"Print data 2",-1,&94):PRINT"�� Hard copy"'" �`````````�"'" Users may prefer to use an alternative�machine code�dump routine or a more"'" comprehensive�ROM based�dump."
1550PRINT" Details of the modification to the"'" main program are on page�C.10/11."''"���� Datascope manual �"''" �Any page of this�Datascope�manual may �be printed by keying�<H>�while the page�is displayed."''"� The program produces a simple text"
1560PRINT"�only printout and is designed for use �with an�EPSON FX80�printer.":PROCB("8.2"):ENDPROC
1570DEFPROCSPROCA:PROCC(&85,&96,&94,&86,2,"Data storage 1",-1,&91):VDU11:PRINT" � Storage of screen images"'" �````````````````````````�"'" Data recorded using 'Datascope' may be stored on disc either as a complete"'" screen image or as a data file."
1580PRINT"� A screen image occupies &2800 bytes �(Mode 4) or &5000 bytes (Mode 1 / 0). �The advantage of saving the whole"'"�screen is that a complete set of data �with any special editing, such as a"
1590PRINT"�bargraph display with additional text, �is saved to disc."'" BBC B users can save Mode 4 screens and Modes 1 / 0 with the�TUBE"'"� The software saves screens with the"'"�correct addresses for Tube users."
1600PRINT'" MASTER series machines are discussed on sub_pages 9.2/3"'SPC31"���9.2�>�";:PROCB("9.1"):PROCE(120):IFG%ENDPROC
1610PROCA:e%=-1:PROCC(&85,&96,&94,&86,2,"Data storage 1",-1,&91):VDU11:PRINT" � Storage of screen images"'" �````````````````````````�"'" ��MASTER series �"''" On MASTER machines fitted with the �TURBO�board Modes 4/1/0 may be * saved.";
1620PRINT" However when no co_processor is fitted the software normally selects�shadow �mode�to allow use of Mode 128 (1) for 4 colour displays etc. In�shadow mode screens cannot be *saved and only the"
1630PRINT"�save data points�option is available."''"�����Disable SHADOW MODE �"'"� To disable the selection of�shadow �mode�please ��key <M> �"'"� With no shadow mode Master users will �have the same program as on a BBC B but";
1640PRINT"�Mode 4�screens can then be *saved."'SPC31"���9.3�>�";:PROCB("9.2"):PROCE(120):e%=0:IFG%ENDPROC
1650PROCA:PROCC(&85,&96,&94,&86,2,"Data storage 1",-1,&91):VDU11:PRINT" � Storage of screen images"'" �````````````````````````�"'" ��MASTER series �"
1660PRINT'" �Without�shadow mode�DScopeM�will be �downloaded to Page &1300 and compacted �as on a BBC B 32K system.":PROCB("9.3"):ENDPROC
1670DEFPROCNPROCA:PROCC(&85,&96,&94,&86,2,"Data storage 2",-1,&91):PRINT'"�� Storage of data files"'" �`````````````````````�"'" A data file stores the last ADC scan data on disc. The storage resolution is set as required. High resolution stores"
1680PRINT" all the data points and low resolution"'" saves 50% of the displayed data."'" With certain ADC signals the resulting low resolution file gives an enhanced"'" display on recall."'"� For example noisy inputs with small"
1690PRINT"�spikes are effectively 'filtered' using�this option."'"� Low resolution data files can be used"'"�when slow scan times (> 1 min) are"'"�combined with only slowly changing ADC"'"�signals."'SPC31"���A.2�>�";:PROCB("A.1"):PROCE(120):IFG%ENDPROC
1700PROCA:PROCC(&85,&96,&94,&86,2,"Data storage 3",-1,&91):PRINT"�� Storage of data files"'" �`````````````````````�"'" All data files store the following"'" additional data."''"�� Experimental parameters"
1710PRINT"� These are saved if previously defined�using option 2 (main menu)."''"�� Details of scan time, axes type and"'"�certain program control variables."''" � File names, error handling."'" The maximum file name length accepted";
1720PRINT" by the program is 9 characters."''''SPC31"���A.3�>�";:PROCB("A.2"):PROCE(120):IFG%ENDPROC
1730PROCA:PROCC(&85,&96,&94,&86,2,"Data storage 4",-1,&91):PRINT'"�� Storage of data files"'" �`````````````````````�"'" � File names."'" The data recall section also"'"�only permits file names of <=9 letters."
1740PRINT"�� Error handling."'"� The program handles disc filing"'"�system errors appropriately."'"� For example during data storage�'disc";
1750PRINT" full/read only/catalogue full'�etc do"'"�not result in data loss but allow a"'"�second chance to save to say another"'"�disc."'"� Special error routines also operate"'"�during data recall mode.":PROCB("A.3"):ENDPROC
1760DEFPROCOPROCA:PROCC(&82,&91,&94,&81,2,"Data recall 1",-1,&95):VDU11:PRINT"�� Recall data images"'" �``````````````````�"'" Screen images are reloaded using"'" option�3�of the main�Datascope�menu."
1770PRINT" �On selection of option 3 a sub_menu �allows a special screen display and �printing program�(DScimag)�to be run �if required."'"� Users with a 32K BBC B should choose �this special program if Mode 1 or 0"
1780PRINT"�screens are to be displayed/printed. � MASTER users must use�DScimag�for all �screens as the main�Datascope�program �uses shadow mode which does not support *loaded screens."'"� TUBE�users (BBC / MASTER) can use the"
1790PRINT"�main�Datascope�program to view or print�any Mode screen and need only use DScimag�if the security feature is �required.";SPC21"���B.2�>":PROCB("B.1"):PROCE(120):IFG%ENDPROC
1800PROCA:PROCC(&82,&91,&94,&81,2,"Data recall 2",-1,&95):VDU11:PRINT"�� Recall data images"'" �``````````````````�"'" �TUBE�users should set the appropriate �screen mode (4/1/0) before reloading an�image (option�6�of main menu)."
1810PRINT"� Users with a 32K BBC B can only use �Mode 4�when recording data because of �memory limitations, however�Mode 1/0 �screens generated on other systems can �be displayed using�DScimag."
1820PRINT'"���$�DScimag security display option �"'" �After loading a screen the screen �colours may be altered for an optimum �display and if required a 6 figure �security code�may be input by the user.";
1830PRINT"� The display cannot be wiped until the �user's code is typed again. This option�could be useful at exhibitions etc."'SPC31"���B.3�>":PROCB("B.2"):PROCE(120):IFG%ENDPROC
1840PROCA:PROCC(&82,&91,&94,&81,2,"Data recall 3",-1,&95):VDU11:PRINT"�� Recall data files"'" �`````````````````�"'" On data file recall the stored points are plotted, during which the file's name and resolution are shown."
1850PRINT" Any stored parameters are recalled, together with scan time, axes etc."'" �After reloading a data file a number �of options are available, including �all the normal program functions."
1860PRINT" � Special options allow further data �files to be reloaded and superimposed �on the screen. New ADC scans can be �overlaid as well if required."'"� These faclilies allow stored and new"
1870PRINT"� data to be easily manipulated to"'"� produce the desired screen display."'"� This complete screen may be saved on �disc using the image save option.":PROCB("B.3"):ENDPROC
1880DEFPROCPPROCA:PROCC(&84,&97,&92,&86,0,"Technical data 1",-1,&95):PRINT'"���Introduction 1"'" �`````````````�"'" On the following pages are some ideas for experimental use of Datascope,"'" certain useful technical data and"
1890PRINT" program information."''" � Datascope was originally developed"'" �by the author for the display, storage �and analysis of biochemical data."'" � This data was derived from electronic �instrumentation designed and built by"
1900PRINT" �the author for a specific research"'" �project."'" � However any signal source within the �limits 0-1.8 volts (12Hz AC ] DC) can �be�monitored by the ADC chip (D7002)."''SPC31"���C.2�>�";:PROCB("C.1"):PROCE(120):IFG%ENDPROC
1910PROCA:PROCC(&84,&97,&92,&86,0,"Technical data 2",-1,&95):PRINT"���Introduction 2"'" Equipment or transducers producing"'" voltages outside these limits can be"'" connected either via a voltage divider";
1920PRINT" or an�interface amplifier�as detailed"'" later."'" � To investigate the edit functions etc �a simple analogue joystick can be used �to generate a varying voltage for the"'" �program."
1930PRINT" To protect the ADC chip from overload by high voltages a zener diode can be"'" connected across the input. A zener is used in the interface amp circuit."'" � Finally, the accuracy of the 12 bit"
1940PRINT" �D7002 is spoiled by drift in the 1.8v �reference voltage (pin 11). This can �overcome by using a precision voltage �reference ic inside the BBC."'SPC31"���C.3�>�";:PROCB("C.2"):PROCE(120):IFG%ENDPROC
1950PROCA:PROCC(&84,&97,&92,&86,0,"Technical data 3",-1,&95):PRINT"���ADC pin connections"'" �```````````````````�"'" The program only monitors channel"'" (port) number 1, the other three ports are disabled."
1960PRINT" � To start monitoring either <SPACE> or �one of the fire button inputs can be"'" �used."'" ��ADC input ��D_plug viewed from solder ���pins side �"'SPC24"� �,,,,,,[�Ch1"'SPC8"9�10 �13 ����15 input"
1970PRINT" � � ����� � �� � ��"'" � �� � �� �� �� �� � �8"'SPC6"1 �3 �6 �� � Analogue";SPC26"���,,�,[�earth ���'Fire' buttons � ��"'"� No.1 connect to 13 & 6 ������0v"'"� No.2 connect to 10 & 3"
1980PRINTSPC31"���C.4�>�";:PROCB("C.3"):PROCE(120):IFG%ENDPROC
1990PROCA:PROCC(&84,&97,&92,&86,0,"Technical data 4",-1,&95):PRINT'"���Applications 1"'" �``````````````"'" ��LDR light sensor ORP 12 (Mullard) A light sensitive circuit can be built using a light dependent resistor."
2000PRINT'"� This transducer has a CdSO4 (cadmium"'"� sulphide) surface whose resistance is"'"� reduced by increasing light intensity. � The ORP12, which is most sensitive to �red�wavelengths, shows a resistance"
2010PRINT"� change from approx 100 ohms in bright"'"� light to some 10 Megaohms in darkness."'" A basic circuit is shown on the next page. This is powered by a 3v battery"'" but could use the +5v ADC port rail."''SPC31"���C.5�>�";
2020PROCB("C.4"):PROCE(120):IFG%ENDPROC
2030PROCA:PROCC(&84,&97,&92,&86,0,"Technical data 5",-1,&95):PRINT"����LDR circuit ��� build on stripboard"''" �,,,��,,,,,,,��[,,,�],,,w5]�+5v ADC"
2040PRINT" R���� ��� � pin 1 1���� � _�+"'" � � � 3v ___ �use ADC 5v ��ꣷ� cell _ �or a cell L�]���� ___ ����� D�]�� �� �� �"
2050PRINT" R�]���� ���"'" ������ �"'" � ����,�,,,w5[�output Vo"'" R���� � to ADC"'" 2����� �pin 15 ���R1 100R � � ����R2 220R"
2060PRINT"� V�꣣� �set Vo ����VR1 4k7 � R�ꗙ[���range ����LDR ORP12 � 1����"'" �����,,,�,�,,��[�0v to ADC pin 8"'SPC10"���� ���C.6�>�";:PROCB("C.5"):PROCE(120):IFG%ENDPROC
2070PROCA:PROCC(&84,&97,&92,&86,0,"Technical data 6",-1,&95):PRINT"���Applications 2"'" �``````````````"'" A simple temperature sensor could be� based on a thermistor."'"� A thermistor's resistance alters with";
2080PRINT"� temperature and various types are"'"� available for different temperature"'"� ranges and applications."'"� Most exhibit a negative temperature"'"� coeffient (ntc, resistance decreases"'"� as temperature rises)."
2090PRINT"� Possible types include rod or bead"'"� ntc thermistors:"''"�Rod VA1026 375R (25 C) 27R (hot)"'"�Bead RA53 5k (20 C) 80R (min R)"'"�Bead GL23 2k (20 C) 115R (min R)"'"�Bead GL16 1M (20 C) 170R (min R)"
2100PRINT'SPC31"���C.7�>�";
2110PROCB("C.6"):PROCE(120):IFG%ENDPROC
2120PROCA:PROCC(&84,&97,&92,&86,0,"Technical data 7",-1,&95):PRINT"���Applications 3"'" �``````````````"'" A bead resistor such as type:�GL16"'" shows a large resistance variation"'" with temperature and would be a good"
2130PRINT" choice for a simple temperature probe"'" circuit."''"� Other possible applications include"'"� monitoring pressure using a piezo_"'"� resistive transducer, strain using a"'"� strain gauge,or flow rates with a"
2140PRINT"� liquid folw sensor."'" All these devices would require some"'" type of interface electronics to"'" amplify and process their outputs into a suitable signal for the ADC port."'"� Most laboratory equipment can be"
2150PRINT"� connected via an interace unit."'SPC31"���C.8�>�";:PROCB("C.7"):PROCE(120):IFG%ENDPROC
2160PROCA:PROCC(&84,&97,&92,&86,0,"Technical data 8",-1,&95):PRINT"���Applications 4"'" �``````````````"'" For example most�Ph meters�can be"'" connected to the ADC via the interface unit described later. Thus acid / base";
2170PRINT" titrations can be followed and shown"'" graphically on a monitor."''"� Many simple physics experiments may"'"� be recorded and studied using this"'"� program and results saved on disc."'"� For example a standard capacitor"
2180PRINT"� charge / discharge curve can be"'"� recorded and the effects of different"'"� experimental conditions can be"'"� immediately compared and studied."'"�"'" Several other applications in all"'" spheres of science are possible."
2190PRINTSPC31"���C.9�>�";:PROCB("C.8"):PROCE(120):IFG%ENDPROC
2200PROCA:PROCC(&84,&97,&92,&86,0,"Technical data 9",-1,&95):PRINT"���Technical data 1"'" �````````````````"'"���$�Datascope system has six programs:"''"� ScopeL1 ScopeL2:�manual parts 1 & 2."
2210PRINT"� DScopeM:�main program�Scopemc:�m.code �DScimag�DScedit:�display / edit points";
2220PRINT'" All six programs must be on the same disc. Each program has been compacted to allow the maximum number of useful facilities."'" The main program was developed using a";
2230PRINT" 65C02 second processor and offers extra options with a�TUBE�or�MASTER."''" On a BBC B 32K the main program must"'" run with PAGE =&1300. Downloading is"'" automatic."'SPC31"���C.10�>";:PROCB("C.9"):PROCE(120):IFG%ENDPROC
2240PROCA:PROCC(&84,&97,&92,&86,0,"Technical data 10",-1,&95):PRINT"���Technical data 2"'" �````````````````"'" ���Program modifications �"'"��`````````````````````````"'"� Graphics dump for modes 4 / 1."'"��`````````````````````````````!"
2250PRINT"� The machine code is assembled by"'"��ScopeL1�and reloaded by�DScopeM�at an �address appropriate to the particular �ACORN series computer running the �program."
2260PRINT'" To use a more comprehensive dump"'" routine in a�ROM,�line�2840�in�DScopeM usually�'CALL V%'�should be replaced by the appropriate FX call eg�'*GDUMP' �On a BBC B/DFS pages &9 - &C are used";
2270PRINT" �by the software: any ROM based dump �routine must not corrupt this area."'TAB(0,22)SPC31;"���C11�>�";:PROCB("C10"):PROCE(120):IFG%ENDPROC
2280PROCA:PROCC(&84,&97,&92,&86,0,"Technical data 11",-1,&95):PRINT"���Technical data 3"'" �````````````````"'"���Alternative machine code dumps"
2290PRINT'"�A different�disc based�machine code"'"dump can be used. This must be no longerthan�1 page�(&FF / 255 bytes). The code must be assembled at the correct addressfor the Acorn system in use."
2300PRINT" This address is shown in the header�REMof�DScopeM:�alternatively�BOOT�Datascope�END�the main program and type�PRINT ~V%for the correct�(hex)�address."
2310PRINT"To�*LOAD�the new code line�20�of�DScopeMmust be edited. Replace�ScopeMC�with thenew file name. A space is required afterthe name before the�""�symbol."'"���Line�2830�must also be edited: Inserta�REM�before the�IFV%!18...�statement."
2320PRINTSPC31"���C12�>�";:PROCB("C11"):PROCE(120):IFG%ENDPROC
2330PROCA:PROCC(&84,&97,&92,&86,0,"Technical data 12",-1,&95):PRINT"���Technical data 4"'" �````````````````"'"���Zener on ADC input"'"��```````````````````��"'" A 2.7v diode connected across the ADC"'" input will protect the D7002 ic from"
2340PRINT" overvoltage and transients."''"�input +V"'"� ] ,,,,,�,,,,,,,,,,]�to ADC pin 15 � �"'"� � �� �cathode �use 2.7v 1.3W or � � ���� �500mW zener eg: � � �ﯤ �BZX85 / BZY88"
2350PRINT"� � �anode �series."'"�earth ��"'"� ] ,,,,,�,,,,,���,,]�to pin 8"'"� � �analogue ground � �����"'"� ���C13�>�";:PROCB("C12"):PROCE(120):IFG%ENDPROC
2360PROCA:PROCC(&84,&97,&92,&86,0,"Technical data 13",-1,&95):PRINT"���Technical data 5"'" �````````````````"'"���Drift in internal ADC ref. voltage. �``````````````````````````````````! The 1.8v reference within the BBC"
2370PRINT" is produced by 3 diodes in series. In critical applications the thermal"'" drift of Vref around 1.80 volts can be prevented by removing the diodes and fitting a precision voltage reference"
2380PRINT" chip. Only competent engineers should undertake this modification!."''"� A suitable precision device is a"'" �ZNREF 025C1�or an�LM336Z."'TAB(0,22)SPC31"���C14�>�";:PROCB("C13"):PROCE(120):IFG%ENDPROC
2390PROCA:PROCC(&84,&97,&92,&86,0,"Technical data 14",-1,&95):PRINT"���Technical data 6"'" �````````````````"'"���Interface amplifier��"'"��`````````````````````�"'" An interface amplifier allows input"'" voltages outside the normal ADC range"
2400PRINT" of 0 to + 1.8 volts to applied to the"'" ADC port."'" The following circuit, designed by the author for use with lab equipment,"'" allows inputs voltages from +-10v to"'" be handled."
2410PRINT" Low level signals can be amplified and high level inputs attenuated."'" A backoff control with zener reference produces +/- 7.5v DC offset which can"'" be used to adjust the DC level of the"'" input signal."
2420PRINT'"� ���C15�>�";:PROCB("C14"):PROCE(120):IFG%ENDPROC
2430PROCA:_%=-1:PROCC(&84,&97,&92,&86,0,"Technical data 15",0,&95):VDU11:PRINT"� ��Interface amp � ���R11a_11c � ���````````````! � ꣭���� � �R8 � ������[����Sw.2� V �IC1 ����� ������ �"
2440PRINT"� in � � �R6�� �R9����������� � �쬮`�������)��������C1��� � � ���� ꣫� �� ���````�����Vo � ���R ��IC2 ��IC4 �����to � ���5 R��5 �R��� ꠣ�ADC";
2450PRINT"� �� �7��% �10��� � � �� � �� ��� � � + ��"'"� `�`�Ve � �````````````````````�"'"� ���R � ������R ��"
2460PRINT"� ���1 � � � R2������4 �� � �㣣�����`���[�����n)����� � � �룂ZD�� ��� �| ��+& �� � � �1 ��������[�w{���IC3 ���[�� � ��ppp� � � �R3 ����VR1 mt";
2470PRINT"� ���0v �Sw.1 � ����� ��KEY�S�] dot graphics ���C16�>�";:PROCB("C15"):PROCE(120):_%=0:IFG%ENDPROC
2480PROCA:PROCC(&84,&97,&92,&86,0,"Technical data 16",-1,&95):PRINT"���Interface amp components"'" �````````````````````````!"'"� construct on Cu track stripboard"'"� use screened leads for input/output"'"� decouple rails:supply volts�+�/ -�10V"
2490PRINT" R1.... 1k all are metal film 2%/0.5W R2_4.. 10k"'" R5.... 100k"'" R6_10. 10k"'" C1.... 100_470nF"'" VR1... 100k (multiturn for fine trim)"'" IC1_3. 071 BIFET low noise (TL071CP)"'" IC4... 355 J_FET (uAF355TC)"
2500PRINT" ZD1... 7.5v/1.3W zener (BZX61 series) Sw.1.. DPDT switch +/- ref. voltage Sw.2.. 1 pole/no.ways=no.of gains used"'" �R11a_c.. �eg�1k... x0.1 20k.. x2 �select for �5.1k. x0.51 100k. x10";
2510PRINT" �gains needed �10k.. x1 470k. x47";:PROCB("C16"):ENDPROC
2520DEFPROCQPROCA:PROCC(&86,&94,&91,&81,0,"Load main program",-1,&97):PRINT"�ppppppppppppppppppppppp"'"����LOAD MAIN PROGRAM���"'"�```````````````````````"'"���The 'Datascope data analysis and"'" storage program will be chained on"'" keying�< TAB >."
2530PRINTSPC8"���������"'"���Datascope main program was developed � using a 65C02 second processor and"'"� has been packed to permit use with a � 32K BBC B.�On chaining the program is �automatically downloaded to�&1300�on a";
2540PRINT"� BBC B. Page cannot be set to &1100 as � the data storage opens a disc file."''"� With the�Tube�or�MASTER�downloading"'"�is not necessary but Page is reset to �allow data & machine code storage as"
2550PRINT"�appropriate to the system in use.":PROCB("D.1"):M%=2:REPEATIFINKEY-97 M%=-1
2560IFINKEY-56ORINKEY-73ORINKEY-103ORINKEY-104M%=0
2570UNTILM%<>2:IFM%PROCD
2580ENDPROC
2590DEFPROCC(O%,U%,d%,S%,T%,C$,N%,J%):PROCH:PRINTTAB(0,0)CHR$O%;"�";CHR$U%;A$;TAB(0,1)CHR$O%;"�";CHR$d%;B$;TAB(21,1)CHR$S%;SPCT%;C$:IFN%PRINTTAB(0,2)CHR$J%;D$
2600IFP%=12PRINTTAB(21,0)"�Applications,"''
2610ENDPROC
2620DEFPROCWVDU2,1,27,1,64,1,27,1,33,1,36,21:PRINT" DATASCOPE":VDU6:PROCJ("FX21"):VDU1,27,1,106,1,8:FORb%=0TO23:FORc%=0TO39:VDU31,c%,b%:A%=135:a%=(USR&FFF4AND&FFFF)DIV256:IFa%=&2C a%=&20
2630IFa%<32ORa%>126 a%=&20
2640VDU1,a%:NEXT:VDU1,10:NEXT:VDU1,10,10,1,27,1,70,1,27,1,64,3:ENDPROC
2650DEFPROCH:A$="���쨼���褼�����":B$="���� �������������":D$=STRING$(39,","):G$="�c M.Goldfinch 1987":ENDPROC
2660DEFPROCB(F$)PRINTTAB(0,23)"��page �";G$;"���<> P*";TAB(7,23)F$;:ENDPROC
�*|"���7`````````````````````````5� ���5�DATASCOPE loader�part2 �5� ���5�(C) M.J.GOLDFINCH�1987 �5� ���uppppppppppppppppppppppppp5�
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$*A%=0:B%=0:D%=0:E%=0:Z%=-1:�"DScopeM":�
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8���T�:�0,6)"���j�Insert�Datascope�master disc �5"'"���j�in Drive 0."�19"�5"''"���j�����key�<SPACE>"�15"�5":���-99:�:�J("DR.0"):�
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�2��X:R%=0:�23,18)"��shadow mode off":e%=0:�7:�
����M I%=-1:�A:�"����������������������������������"'"����������������������"'"��������������꽮"'"������ ����������������������� �index"'"����������������������������������"'"��p.1:index ���sub-pages";
���"� � 2:introduction 3��� � 3:parameters option 2��� � 4:graphics mode, data drive 1��� � 5:colour and axes options 4��� � 6:monitor ADC port 5��";
���"� � 7:edit: erase/overlay/bargraph 5��� � 8:print data 2��� � 9:data storage 1: screen images 3��� � A:data storage 2: data files 3��� � B:data recall: images and files 3��";
���"� � C:applications & technical data 16����� D:load�Datascope main program 1��"'"���k���>�next page �<�previous page ����e ��TAB�scroll sub-page���*�index � ����y���P�select page�( �H�print page �";:�B("1")
�7�0,24)"����5�Part 2 contains pages 8 to C�5 ��";:�
����R�A:�C(&87,&95,&91,&84,4,"Print data 1",-1,&94):�11:�"�� Hard copy"'" �`````````�"'"� A printout of the current screen may �be produced if required."'" Before printing the parameters entered";
���" in option 2 may be displayed on screen. A repeat hard copy option is given by the software, after the screen dump is completed."'"� This software includes a machine code �program to hard copy Mode 4 / 1 screens";
���"�to an�EPSON <FX80> printer.��This is �located as appropriate to the ACORN"'"�machine in use."'" �When the Datascope disc is first used the machine code should be saved when prompted. If the BBC system in use is"
�f�" subsequently altered this code should again be saved."'�31"���8.2�>�";:�B("8.1"):�E(120):�G%�
��A:�C(&87,&95,&91,&84,4,"Print data 2",-1,&94):�"�� Hard copy"'" �`````````�"'" Users may prefer to use an alternative�machine code�dump routine or a more"'" comprehensive�ROM based�dump."
��" Details of the modification to the"'" main program are on page�C.10/11."''"���� Datascope manual �"''" �Any page of this�Datascope�manual may �be printed by keying�<H>�while the page�is displayed."''"� The program produces a simple text"
W�"�only printout and is designed for use �with an�EPSON FX80�printer.":�B("8.2"):�
"���S�A:�C(&85,&96,&94,&86,2,"Data storage 1",-1,&91):�11:�" � Storage of screen images"'" �````````````````````````�"'" Data recorded using 'Datascope' may be stored on disc either as a complete"'" screen image or as a data file."
,��"� A screen image occupies &2800 bytes �(Mode 4) or &5000 bytes (Mode 1 / 0). �The advantage of saving the whole"'"�screen is that a complete set of data �with any special editing, such as a"
6��"�bargraph display with additional text, �is saved to disc."'" BBC B users can save Mode 4 screens and Modes 1 / 0 with the�TUBE"'"� The software saves screens with the"'"�correct addresses for Tube users."
@j�'" MASTER series machines are discussed on sub_pages 9.2/3"'�31"���9.2�>�";:�B("9.1"):�E(120):�G%�
J��A:e%=-1:�C(&85,&96,&94,&86,2,"Data storage 1",-1,&91):�11:�" � Storage of screen images"'" �````````````````````````�"'" ��MASTER series �"''" On MASTER machines fitted with the �TURBO�board Modes 4/1/0 may be * saved.";
T��" However when no co_processor is fitted the software normally selects�shadow �mode�to allow use of Mode 128 (1) for 4 colour displays etc. In�shadow mode screens cannot be *saved and only the"
^��"�save data points�option is available."''"�����Disable SHADOW MODE �"'"� To disable the selection of�shadow �mode�please ��key <M> �"'"� With no shadow mode Master users will �have the same program as on a BBC B but";
hV�"�Mode 4�screens can then be *saved."'�31"���9.3�>�";:�B("9.2"):�E(120):e%=0:�G%�
r��A:�C(&85,&96,&94,&86,2,"Data storage 1",-1,&91):�11:�" � Storage of screen images"'" �````````````````````````�"'" ��MASTER series �"
|~�'" �Without�shadow mode�DScopeM�will be �downloaded to Page &1300 and compacted �as on a BBC B 32K system.":�B("9.3"):�
����N�A:�C(&85,&96,&94,&86,2,"Data storage 2",-1,&91):�'"�� Storage of data files"'" �`````````````````````�"'" A data file stores the last ADC scan data on disc. The storage resolution is set as required. High resolution stores"
���" all the data points and low resolution"'" saves 50% of the displayed data."'" With certain ADC signals the resulting low resolution file gives an enhanced"'" display on recall."'"� For example noisy inputs with small"
���"�spikes are effectively 'filtered' using�this option."'"� Low resolution data files can be used"'"�when slow scan times (> 1 min) are"'"�combined with only slowly changing ADC"'"�signals."'�31"���A.2�>�";:�B("A.1"):�E(120):�G%�
���A:�C(&85,&96,&94,&86,2,"Data storage 3",-1,&91):�"�� Storage of data files"'" �`````````````````````�"'" All data files store the following"'" additional data."''"�� Experimental parameters"
���"� These are saved if previously defined�using option 2 (main menu)."''"�� Details of scan time, axes type and"'"�certain program control variables."''" � File names, error handling."'" The maximum file name length accepted";
�Q�" by the program is 9 characters."''''�31"���A.3�>�";:�B("A.2"):�E(120):�G%�
���A:�C(&85,&96,&94,&86,2,"Data storage 4",-1,&91):�'"�� Storage of data files"'" �`````````````````````�"'" � File names."'" The data recall section also"'"�only permits file names of <=9 letters."
̊�"�� Error handling."'"� The program handles disc filing"'"�system errors appropriately."'"� For example during data storage�'disc";
���" full/read only/catalogue full'�etc do"'"�not result in data loss but allow a"'"�second chance to save to say another"'"�disc."'"� Special error routines also operate"'"�during data recall mode.":�B("A.3"):�
���O�A:�C(&82,&91,&94,&81,2,"Data recall 1",-1,&95):�11:�"�� Recall data images"'" �``````````````````�"'" Screen images are reloaded using"'" option�3�of the main�Datascope�menu."
���" �On selection of option 3 a sub_menu �allows a special screen display and �printing program�(DScimag)�to be run �if required."'"� Users with a 32K BBC B should choose �this special program if Mode 1 or 0"
���"�screens are to be displayed/printed. � MASTER users must use�DScimag�for all �screens as the main�Datascope�program �uses shadow mode which does not support *loaded screens."'"� TUBE�users (BBC / MASTER) can use the"
���"�main�Datascope�program to view or print�any Mode screen and need only use DScimag�if the security feature is �required.";�21"���B.2�>":�B("B.1"):�E(120):�G%�
��A:�C(&82,&91,&94,&81,2,"Data recall 2",-1,&95):�11:�"�� Recall data images"'" �``````````````````�"'" �TUBE�users should set the appropriate �screen mode (4/1/0) before reloading an�image (option�6�of main menu)."
��"� Users with a 32K BBC B can only use �Mode 4�when recording data because of �memory limitations, however�Mode 1/0 �screens generated on other systems can �be displayed using�DScimag."
��'"���$�DScimag security display option �"'" �After loading a screen the screen �colours may be altered for an optimum �display and if required a 6 figure �security code�may be input by the user.";
&��"� The display cannot be wiped until the �user's code is typed again. This option�could be useful at exhibitions etc."'�31"���B.3�>":�B("B.2"):�E(120):�G%�
0��A:�C(&82,&91,&94,&81,2,"Data recall 3",-1,&95):�11:�"�� Recall data files"'" �`````````````````�"'" On data file recall the stored points are plotted, during which the file's name and resolution are shown."
:��" Any stored parameters are recalled, together with scan time, axes etc."'" �After reloading a data file a number �of options are available, including �all the normal program functions."
D��" � Special options allow further data �files to be reloaded and superimposed �on the screen. New ADC scans can be �overlaid as well if required."'"� These faclilies allow stored and new"
N��"� data to be easily manipulated to"'"� produce the desired screen display."'"� This complete screen may be saved on �disc using the image save option.":�B("B.3"):�
X���P�A:�C(&84,&97,&92,&86,0,"Technical data 1",-1,&95):�'"���Introduction 1"'" �`````````````�"'" On the following pages are some ideas for experimental use of Datascope,"'" certain useful technical data and"
b��" program information."''" � Datascope was originally developed"'" �by the author for the display, storage �and analysis of biochemical data."'" � This data was derived from electronic �instrumentation designed and built by"
l��" �the author for a specific research"'" �project."'" � However any signal source within the �limits 0-1.8 volts (12Hz AC ] DC) can �be�monitored by the ADC chip (D7002)."''�31"���C.2�>�";:�B("C.1"):�E(120):�G%�
v��A:�C(&84,&97,&92,&86,0,"Technical data 2",-1,&95):�"���Introduction 2"'" Equipment or transducers producing"'" voltages outside these limits can be"'" connected either via a voltage divider";
���" or an�interface amplifier�as detailed"'" later."'" � To investigate the edit functions etc �a simple analogue joystick can be used �to generate a varying voltage for the"'" �program."
���" To protect the ADC chip from overload by high voltages a zener diode can be"'" connected across the input. A zener is used in the interface amp circuit."'" � Finally, the accuracy of the 12 bit"
���" �D7002 is spoiled by drift in the 1.8v �reference voltage (pin 11). This can �overcome by using a precision voltage �reference ic inside the BBC."'�31"���C.3�>�";:�B("C.2"):�E(120):�G%�
���A:�C(&84,&97,&92,&86,0,"Technical data 3",-1,&95):�"���ADC pin connections"'" �```````````````````�"'" The program only monitors channel"'" (port) number 1, the other three ports are disabled."
���" � To start monitoring either <SPACE> or �one of the fire button inputs can be"'" �used."'" ��ADC input ��D_plug viewed from solder ���pins side �"'�24"� �,,,,,,[�Ch1"'�8"9�10 �13 ����15 input"
���" � � ����� � �� � ��"'" � �� � �� �� �� �� � �8"'�6"1 �3 �6 �� � Analogue";�26"���,,�,[�earth ���'Fire' buttons � ��"'"� No.1 connect to 13 & 6 ������0v"'"� No.2 connect to 10 & 3"
�+�31"���C.4�>�";:�B("C.3"):�E(120):�G%�
���A:�C(&84,&97,&92,&86,0,"Technical data 4",-1,&95):�'"���Applications 1"'" �``````````````"'" ��LDR light sensor ORP 12 (Mullard) A light sensitive circuit can be built using a light dependent resistor."
���'"� This transducer has a CdSO4 (cadmium"'"� sulphide) surface whose resistance is"'"� reduced by increasing light intensity. � The ORP12, which is most sensitive to �red�wavelengths, shows a resistance"
���"� change from approx 100 ohms in bright"'"� light to some 10 Megaohms in darkness."'" A basic circuit is shown on the next page. This is powered by a 3v battery"'" but could use the +5v ADC port rail."''�31"���C.5�>�";
��B("C.4"):�E(120):�G%�
��A:�C(&84,&97,&92,&86,0,"Technical data 5",-1,&95):�"����LDR circuit ��� build on stripboard"''" �,,,��,,,,,,,��[,,,�],,,w5]�+5v ADC"
���" R���� ��� � pin 1 1��� � _�+"'" � � � 3v ___ �use ADC 5v ��ꣷ� cell _ �or a cell L�]���� ___ ����� D�]�� �� �� �"
��" R�]���� ���"'" ���� �"'" � ����,�,,,w5[�output Vo"'" R���� � to ADC"'" 2��� �pin 15 ���R1 100R � � ����R2 220R"
��"� V�꣣� �set Vo ����VR1 4k7 � R�ꗙ[���range ����LDR ORP12 � 1����"'" �����,,,�,�,,��[�0v to ADC pin 8"'�10"���� ���C.6�>�";:�B("C.5"):�E(120):�G%�
��A:�C(&84,&97,&92,&86,0,"Technical data 6",-1,&95):�"���Applications 2"'" �``````````````"'" A simple temperature sensor could be� based on a thermistor."'"� A thermistor's resistance alters with";
��"� temperature and various types are"'"� available for different temperature"'"� ranges and applications."'"� Most exhibit a negative temperature"'"� coeffient (ntc, resistance decreases"'"� as temperature rises)."
*��"� Possible types include rod or bead"'"� ntc thermistors:"''"�Rod VA1026 375R (25 C) 27R (hot)"'"�Bead RA53 5k (20 C) 80R (min R)"'"�Bead GL23 2k (20 C) 115R (min R)"'"�Bead GL16 1M (20 C) 170R (min R)"
4�'�31"���C.7�>�";
>�B("C.6"):�E(120):�G%�
H��A:�C(&84,&97,&92,&86,0,"Technical data 7",-1,&95):�"���Applications 3"'" �``````````````"'" A bead resistor such as type:�GL16"'" shows a large resistance variation"'" with temperature and would be a good"
R��" choice for a simple temperature probe"'" circuit."''"� Other possible applications include"'"� monitoring pressure using a piezo_"'"� resistive transducer, strain using a"'"� strain gauge,or flow rates with a"
\��"� liquid folw sensor."'" All these devices would require some"'" type of interface electronics to"'" amplify and process their outputs into a suitable signal for the ADC port."'"� Most laboratory equipment can be"
fO�"� connected via an interace unit."'�31"���C.8�>�";:�B("C.7"):�E(120):�G%�
p��A:�C(&84,&97,&92,&86,0,"Technical data 8",-1,&95):�"���Applications 4"'" �``````````````"'" For example most�Ph meters�can be"'" connected to the ADC via the interface unit described later. Thus acid / base";
z��" titrations can be followed and shown"'" graphically on a monitor."''"� Many simple physics experiments may"'"� be recorded and studied using this"'"� program and results saved on disc."'"� For example a standard capacitor"
���"� charge / discharge curve can be"'"� recorded and the effects of different"'"� experimental conditions can be"'"� immediately compared and studied."'"�"'" Several other applications in all"'" spheres of science are possible."
�+�31"���C.9�>�";:�B("C.8"):�E(120):�G%�
���A:�C(&84,&97,&92,&86,0,"Technical data 9",-1,&95):�"���Technical data 1"'" �````````````````"'"���$�Datascope system has six programs:"''"� ScopeL1 ScopeL2:�manual parts 1 & 2."
�X�"� DScopeM:�main program�Scopemc:�m.code �DScimag�DScedit:�display / edit points";
���'" All six programs must be on the same disc. Each program has been compacted to allow the maximum number of useful facilities."'" The main program was developed using a";
���" 65C02 second processor and offers extra options with a�TUBE�or�MASTER."''" On a BBC B 32K the main program must"'" run with PAGE =&1300. Downloading is"'" automatic."'�31"���C.10�>";:�B("C.9"):�E(120):�G%�
���A:�C(&84,&97,&92,&86,0,"Technical data 10",-1,&95):�"���Technical data 2"'" �````````````````"'" ���Program modifications �"'"��`````````````````````````"'"� Graphics dump for modes 4 / 1."'"��`````````````````````````````!"
ʯ�"� The machine code is assembled by"'"��ScopeL1�and reloaded by�DScopeM�at an �address appropriate to the particular �ACORN series computer running the �program."
���'" To use a more comprehensive dump"'" routine in a�ROM,�line�2840�in�DScopeM usually�'CALL V%'�should be replaced by the appropriate FX call eg�'*GDUMP' �On a BBC B/DFS pages &9 - &C are used";
ނ�" �by the software: any ROM based dump �routine must not corrupt this area."'�0,22)�31;"���C11�>�";:�B("C10"):�E(120):�G%�
��A:�C(&84,&97,&92,&86,0,"Technical data 11",-1,&95):�"���Technical data 3"'" �````````````````"'"���Alternative machine code dumps"
���'"�A different�disc based�machine code"'"dump can be used. This must be no longerthan�1 page�(&FF / 255 bytes). The code must be assembled at the correct addressfor the Acorn system in use."
���" This address is shown in the header�REMof�DScopeM:�alternatively�BOOT�Datascope�END�the main program and type�PRINT ~V%for the correct�(hex)�address."
��"To�*LOAD�the new code line�20�of�DScopeMmust be edited. Replace�ScopeMC�with thenew file name. A space is required afterthe name before the�""�symbol."'"���Line�2830�must also be edited: Inserta�REM�before the�IFV%!18...�statement."
+�31"���C12�>�";:�B("C11"):�E(120):�G%�
��A:�C(&84,&97,&92,&86,0,"Technical data 12",-1,&95):�"���Technical data 4"'" �````````````````"'"���Zener on ADC input"'"��```````````````````��"'" A 2.7v diode connected across the ADC"'" input will protect the D7002 ic from"
$��" overvoltage and transients."''"�input +V"'"� ] ,,,,,�,,,,,,,,,,]�to ADC pin 15 � �"'"� � �� �cathode �use 2.7v 1.3W or � � ���� �500mW zener eg: � � �ﯤ �BZX85 / BZY88"
.��"� � �anode �series."'"�earth ��"'"� ] ,,,,,�,,,,,���,,]�to pin 8"'"� � �analogue ground � �����"'"� ���C13�>�";:�B("C12"):�E(120):�G%�
8��A:�C(&84,&97,&92,&86,0,"Technical data 13",-1,&95):�"���Technical data 5"'" �````````````````"'"���Drift in internal ADC ref. voltage. �``````````````````````````````````! The 1.8v reference within the BBC"
B��" is produced by 3 diodes in series. In critical applications the thermal"'" drift of Vref around 1.80 volts can be prevented by removing the diodes and fitting a precision voltage reference"
L��" chip. Only competent engineers should undertake this modification!."''"� A suitable precision device is a"'" �ZNREF 025C1�or an�LM336Z."'�0,22)�31"���C14�>�";:�B("C13"):�E(120):�G%�
V��A:�C(&84,&97,&92,&86,0,"Technical data 14",-1,&95):�"���Technical data 6"'" �````````````````"'"���Interface amplifier��"'"��`````````````````````�"'" An interface amplifier allows input"'" voltages outside the normal ADC range"
`��" of 0 to + 1.8 volts to applied to the"'" ADC port."'" The following circuit, designed by the author for use with lab equipment,"'" allows inputs voltages from +-10v to"'" be handled."
j��" Low level signals can be amplified and high level inputs attenuated."'" A backoff control with zener reference produces +/- 7.5v DC offset which can"'" be used to adjust the DC level of the"'" input signal."
tH�'"� ���C15�>�";:�B("C14"):�E(120):�G%�
~��A:_%=-1:�C(&84,&97,&92,&86,0,"Technical data 15",0,&95):�11:�"� ��Interface amp � ��R11a_11c � ���````````````! � ꣭���� � �R8 � �����[����Sw.2� V �IC1 ����� ����� �"
���"� in � � �R6�� �R9���������� � �쬮`������)������C1��� � � ��� ꣫� �� ��````�����Vo � ���R ��IC2 ��IC4 ���to � �5 R��5 �R��� ꠣ�ADC";
���"� �� �7��% �10�� � � �� � �� ��� � � + ��"'"� `�`�Ve � �````````````````````�"'"� ���R � ���R ��"
���"� �1 � � � R2������4 �� � �㣣�����`���[�����n)���� � � �룂ZD�� ��� �| ��+& � � � �1 ��������[�w{���IC3 ���[�� � ��ppp� � � �R3 ����VR1 mt";
�t�"� �0v �Sw.1 � ��� ��KEY�S�] dot graphics ���C16�>�";:�B("C15"):�E(120):_%=0:�G%�
���A:�C(&84,&97,&92,&86,0,"Technical data 16",-1,&95):�"���Interface amp components"'" �````````````````````````!"'"� construct on Cu track stripboard"'"� use screened leads for input/output"'"� decouple rails:supply volts�+�/ -�10V"
���" R1.... 1k all are metal film 2%/0.5W R2_4.. 10k"'" R5.... 100k"'" R6_10. 10k"'" C1.... 100_470nF"'" VR1... 100k (multiturn for fine trim)"'" IC1_3. 071 BIFET low noise (TL071CP)"'" IC4... 355 J_FET (uAF355TC)"
���" ZD1... 7.5v/1.3W zener (BZX61 series) Sw.1.. DPDT switch +/- ref. voltage Sw.2.. 1 pole/no.ways=no.of gains used"'" �R11a_c.. �eg�1k... x0.1 20k.. x2 �select for �5.1k. x0.51 100k. x10";
�<�" �gains needed �10k.. x1 470k. x47";:�B("C16"):�
����Q�A:�C(&86,&94,&91,&81,0,"Load main program",-1,&97):�"�ppppppppppppppppppppppp"'"����LOAD MAIN PROGRAM���"'"�```````````````````````"'"���The 'Datascope data analysis and"'" storage program will be chained on"'" keying�< TAB >."
���8"���������"'"���Datascope main program was developed � using a 65C02 second processor and"'"� has been packed to permit use with a � 32K BBC B.�On chaining the program is �automatically downloaded to�&1300�on a";
���"� BBC B. Page cannot be set to &1100 as � the data storage opens a disc file."''"� With the�Tube�or�MASTER�downloading"'"�is not necessary but Page is reset to �allow data & machine code storage as"
�E�"�appropriate to the system in use.":�B("D.1"):M%=2:��-97 M%=-1
�-56��-73��-103��-104M%=0
�M%<>2:�M%�D
�
m��C(O%,U%,d%,S%,T%,C$,N%,J%):�H:�0,0)�O%;"�";�U%;A$;�0,1)�O%;"�";�d%;B$;�21,1)�S%;�T%;C$:�N%�0,2)�J%;D$
(#�P%=12�21,0)"�Applications,"''
2�
<���W�2,1,27,1,64,1,27,1,33,1,36,21:�" DATASCOPE":�6:�J("FX21"):�1,27,1,106,1,8:�b%=0�23:�c%=0�39:�31,c%,b%:A%=135:a%=(�&FFF4�&FFFF)�256:�a%=&2C a%=&20
F�a%<32�a%>126 a%=&20
P4�1,a%:�:�1,10:�:�1,10,10,1,27,1,70,1,27,1,64,3:�
Z^��H:A$="���쨼���褼�����":B$="���� �����������":D$=�39,","):G$="�c M.Goldfinch 1987":�
d:��B(F$)�0,23)"��page �";G$;"���<> P*";�7,23)F$;:�
� 00000000 0d 00 00 9e 2a 7c 22 83 9d 91 37 60 60 60 60 60 |....*|"...7`````|
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00000030 9d 91 35 84 44 41 54 41 53 43 4f 50 45 20 6c 6f |..5.DATASCOPE lo|
00000040 61 64 65 72 85 70 61 72 74 32 20 91 35 9d 20 20 |ader.part2 .5. |
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00005890 8a 30 2c 32 29 bd 4a 25 3b 44 24 0d 0a 28 23 e7 |.0,2).J%;D$..(#.|
000058a0 50 25 3d 31 32 f1 8a 32 31 2c 30 29 22 86 41 70 |P%=12..21,0)".Ap|
000058b0 70 6c 69 63 61 74 69 6f 6e 73 2c 22 27 27 0d 0a |plications,"''..|
000058c0 32 05 e1 0d 0a 3c 99 dd f2 57 ef 32 2c 31 2c 32 |2....<...W.2,1,2|
000058d0 37 2c 31 2c 36 34 2c 31 2c 32 37 2c 31 2c 33 33 |7,1,64,1,27,1,33|
000058e0 2c 31 2c 33 36 2c 32 31 3a f1 22 20 44 41 54 41 |,1,36,21:." DATA|
000058f0 53 43 4f 50 45 22 3a ef 36 3a f2 4a 28 22 46 58 |SCOPE":.6:.J("FX|
00005900 32 31 22 29 3a ef 31 2c 32 37 2c 31 2c 31 30 36 |21"):.1,27,1,106|
00005910 2c 31 2c 38 3a e3 62 25 3d 30 b8 32 33 3a e3 63 |,1,8:.b%=0.23:.c|
00005920 25 3d 30 b8 33 39 3a ef 33 31 2c 63 25 2c 62 25 |%=0.39:.31,c%,b%|
00005930 3a 41 25 3d 31 33 35 3a 61 25 3d 28 ba 26 46 46 |:A%=135:a%=(.&FF|
00005940 46 34 80 26 46 46 46 46 29 81 32 35 36 3a e7 61 |F4.&FFFF).256:.a|
00005950 25 3d 26 32 43 20 61 25 3d 26 32 30 0d 0a 46 18 |%=&2C a%=&20..F.|
00005960 e7 61 25 3c 33 32 84 61 25 3e 31 32 36 20 61 25 |.a%<32.a%>126 a%|
00005970 3d 26 32 30 0d 0a 50 34 ef 31 2c 61 25 3a ed 3a |=&20..P4.1,a%:.:|
00005980 ef 31 2c 31 30 3a ed 3a ef 31 2c 31 30 2c 31 30 |.1,10:.:.1,10,10|
00005990 2c 31 2c 32 37 2c 31 2c 37 30 2c 31 2c 32 37 2c |,1,27,1,70,1,27,|
000059a0 31 2c 36 34 2c 33 3a e1 0d 0a 5a 5e dd f2 48 3a |1,64,3:...Z^..H:|
000059b0 41 24 3d 22 bc e4 e8 ec a8 bc e8 ec e8 ac e8 a4 |A$="............|
000059c0 bc b4 bc b4 bc a4 22 3a 42 24 3d 22 f5 ba aa ab |......":B$="....|
000059d0 20 a5 aa ab e2 fb aa a4 ad a5 bd a5 af a4 22 3a | .............":|
000059e0 44 24 3d c4 33 39 2c 22 2c 22 29 3a 47 24 3d 22 |D$=.39,","):G$="|
000059f0 87 63 20 4d 2e 47 6f 6c 64 66 69 6e 63 68 20 31 |.c M.Goldfinch 1|
00005a00 39 38 37 22 3a e1 0d 0a 64 3a dd f2 42 28 46 24 |987":...d:..B(F$|
00005a10 29 f1 8a 30 2c 32 33 29 22 9d 84 70 61 67 65 20 |)..0,23)"..page |
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00005a42 
20-03-88/SCOPEL2.m0
20-03-88/SCOPEL2.m1
20-03-88/SCOPEL2.m2
20-03-88/SCOPEL2.m4
20-03-88/SCOPEL2.m5
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