Marconi RB2/PC-1 User Manual Download Page 20 | Manualshive

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Summary of Contents for RB2/PC-1

Page 1: ...USERGUIDE FORTNE BBC Micro Model B Version...

Page 2: ......

Page 3: ...Connecting Up Para 4 Software Description Para 5 Loading and running the Utilities Software Para 6 Loading and running drawing program Paintball 1 Para 7 Transferring to disc Para 8 Specification Para...

Page 4: ...accurate the Tracker Ball is in positioning the cursor on a video display For the more advanced user this booklet contains technical information which explains how the Tracker Ball works and ways in w...

Page 5: ...BBC Micro Model B version and contains three user assignable buttons which can replace existing keyboard key functions or act as additional keys specially assigned by the user The tape cassette suppli...

Page 6: ...w about connecting up the BBC Micro cassette player disc drive unit and monitor or television set Before connecting up the Tracker Ball make sure that the electrical supply is disconnected or switched...

Page 7: ...on of the demonstration drawing program on SIDE 1 1 Utilities Program This allows the user to substitute Tracker Ball a As cursor control in place of cursor keys This is particularly good with Wordwis...

Page 8: ...e utilities must not be loaded into a memory location used by the joystick program to be run The utilities program helps here by offering the user a choice of memory locations likely to be available T...

Page 9: ...d colour A further push on the button selects the next colour and so on NOTE The colour selected cannot be a colour already on screen Text Text can be typed in from the keyboard at any time If the tex...

Page 10: ...sitioning the cursor inside the shape and pressing a select button To stop filling press ESCAPE key Note It is only possible to fill over the background colour that is the colour shown ON in the botto...

Page 11: ...an explanation of the system Next an initial menu option is offered 1 Proceed to UTILITIES 2 Pass straight to demonstration drawing Paintball 3 Look at an EDIT DEMO Disc version only If UTILITIES is...

Page 12: ...er BREAK is pressed is always an indication that the Utility is present You are now ready to load the main joystick program in the normal way If TBALL is selected Menu options are offered in a similar...

Page 13: ...program may be run normally without upsetting the utility Pressing BREAK or SHIFT BREAK on most programs will not usually affect it Only CTRUBREAK will remove the utility 2 If the memory location cho...

Page 14: ...eady to draw using the Tracker Ball Hints 1 When FILLING if a colour leaks then press ESCAPE to stop filling 2 Erasing If a mistake is made it can be erased by drawing solid oblongs or triangles in th...

Page 15: ...ins a version of the Utilities and Paintball suitable for transferring to disc To help you do this a disc making program is included at the beginning of the tape To load type T RETURN Then CH Once the...

Page 16: ...g proportional to the vector quantities derived from the ball s movement The pulses are shaped internally such that the final output of the Tracker Ball is 2 trains of square wave pulses for each of t...

Page 17: ...Buttons Operating temperature Storage temperature 200mm 7 87 in 115mm 4 53 in 70mm 2 76 in 600gm 21 12oz 57mm 2 25 in Brown Ivory 30gm 1 06 oz Tangential force on ball periphery 200 pulses 5 for 1 ful...

Page 18: ...y connector compatible with BBC Micro User Port 5Vdc 5 60mA max from user port of BBC Micro Model B Standard 5V TIL levels Encoded square wave outputs are quadrature coded to provide directional infor...

Page 19: ...PBO Left switch button PB1 Middle switch button PB2 Right switch button PB3 X2 PB4 Y1 PB5 PB6 PB7 not used 5V Power Connection OV Power Connection An occasional clean and polish of the ball is normall...

Page 20: ...Marconi Electronic Devices Power Division Carholme Road Lincoln LN1 1SG Tel 0522 29992 Telex 56163...

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