INSTALLATION GUIDE FOR THE BBC UPGRADE BOARD Edition A
Contents
1. Place system disk in drive 0 chx dd cmds tmode nopause load format backup Remove system disk Then for each disk to back up Place blank disk in drive format dl rv blank When the format is complete place the write protected disk to be copied into drive 0 backup d0 dl b 200k Ready to backup from d0 to d1 yY When the backup is complete both the format and the backup will take some minutes remove both disks and store the original in a safe place Repeat the format and the backup for all the supplied disks You are now ready to explore the exciting world of OS 9 However we suggest that you read the User s Manual and the Supplement to the User s Manual thoroughly before you go any further Have fun2. R L F Di the UPGRADI Lay R Di BBC board B To improve the support at the and only BNC B BC B the f the board from board over board up to the the ribbon cable into The end with the the board f the pins on the connector B BC Do this BC board Align the two of the UPGRADE board with the BC board Drop the two long self and screw them into the BBC fairly well supported above the BBC front edge of the board use the clip supplied fixing it onto the front edge of the UPGRADE board so that it rests on the BBC board The UPGRADE board is now fitted Insert the ROM into a spare ROM slot on the BBC board make sure the BBC links are set up for a 27128 ROM Now reconnect the keyboard and screw it back into place Plug your floppy disk drives into the 34 way connector on the back left edge of the board Pin one coloured wire or brown wire is to the left The connector is not keyed so make sure you have got it correctly aligned If you have a hard disk unit connect it to the 50 way connector behind the floppy disk connector Again pin one is to the left Now replace the BBC lid make sure they are se
3. Sources disk B BC B you should also have the B board is very straightforward It B BC B somewhat longer on BC bas There are two screws on i from the keyboard where it plugs into the The ribbon cable connector may be near the front Next from the computer by removing the ribbon B BC stiff so ease it off carefully Now unscrew the keyboard from th cas Ther ar two screws one on either side of the keyboard Remove the keyboard from the computer 2 1 BBC B only your computer is microprocessor a BBC B carefully remove the 6502 from its socket from inserting a screwdriver chip and the socket side as you insert careful not to bend the legs of with the screwdriver Now remove the two screws holding the back edge of board onto the case You can do this by progressively one end of and rocking the screwdriver it down the length of f the chip the chip between the from side to the chip Be very or to scrape the board the BC 2 3 BBC B only the 6512 wires to mark which is which that you you have a BBC Bt microprocessor the you will which is soldered To do this you must remove the board BNC connector on the back pan Unplug the power c
4. th B e carefully Lowe columns vacated O R Di r the UPGRADI Ti G the UPGRADE for the socket gap left by the 65 ke sure you have sol orted any tracks or splashed solder onto the fully insert the microprocessor into the empty 40 pin board Resolder th 12 processor BBC 6502 D Pin one of on the back corners fixing holes in the logo fixing holes at the back corn the board Now insert one of supplied with the UPGRAD The end with the board BC board As you bring the UPGRADI sert the connector on the other end of e microprocessor socket on the coloured wire goes towards the back edge of to avoid bending any of B board onto the tapping screws down the columns The UPGRADI board H Pi board is now for and lift the board 6512 chip with the side Throw away the body of from the board f the board and pull the leg out with the pliers lot easier When you have removed all clean up the holes by melting the solder and sucking Do not apply the heat the solder pads of too the Insert the 40 pin and solder ldered all the legs For the present wires to the for the IL socket on the the chip goes towards the back edge of Insert the two plastic columns ers of the board the connectors on into the socket on the coloured wire goes
5. Edition A INSTALLATION GU DE FOR THE BBC UPGRADE m BOARD Copyright c 1985 The Soft Centre 3rd October 1985 1 Introduction This guide takes you step by step through the installation of the BBC UPGRADE board on your BBC B or BBC Bt You will need a cross head screwdriver and a flat bladed screwdriver f you have a BBC B you will also need a soldering iron a pair of side cutters a pair of snipe nosed pliers and a solder sucker Your UPGRADE i The UPGRADE board A 40 way connecting ribbon cable with Two plastic columns A clip on support Two long self tapping screws A 27128 boot ROM Three floppy disks The OS 9 System The languages disk C The Stylograph If you have the A 40 way DIL socket A 6512 microprocessor 2 2 1 Preparation should only take a the BBC B the First remove th Installing the UPGRADE few minutes on the first time only Dis Dyn fitting pack cover of the back disconnect the keyboard cable connector and and two screws on th the loadspeaker connector package should contain D k acalc for the Installing the UPGRADE board Pascal Fonts L plugs Basic09 and
6. ables that go power supply to points all over the board Again E eae al T into he B el first o the from t know which wir holding the board into the front out First cut all the legs of near to the body of the processor cutters to B goes wher BC Now unscrew the B need to remove BC board BC Unsolder the making sure you from the be very sure four screws Slide the board towards the Holding a leg with the pliers th reverse side o Two people makes the job a the legs it out with the solder sucker long tracks The D that you board Now replace the board in the front screws and reconnect the power cables screw in connector otherwise you risk DIL socket into the in all the legs Ma li free the connecters at the You are now ready to unsolder th e chi Next you must extract the legs melt the solder at the leg on the fting o back e 6512 the p board is now ready have not sh the two 2 4 BBC B and Bt Carei 6512 for component side of d with e edge to the en th in th undersid the B BC B the notch in with the UPGRAD two R L th th e ribbon cabl undersid of e f the board towards the back edge of th in
7. rsor The drive should continue to work away as OS 9 goes through the startup procedure Next the screen should display th Welcome banner briefly Finally the screen should clear and the date and time are displayed When you have the S prompt from the OS 9 shell enter chx dd cmds chd dd to select your execution and data directories If the date tim is incorrect set it with the setime utility type setime and respond to the prompt by typing in the correct time and date Now set up the correct step rates for your floppy disk drives using the steprate utility For example steprate d0 3 d1 3 Valid step rates are 3 6 10 and 15 Consult your disk drive manual if you are unsure of the correct step rate to select The date time and step rates are saved in the battery backed MC146818 chip on the UPGRADE so you should not have to enter these values again except to correct for clock drift and British Summer Time T IS MOST IMPORTANT that you now immediately take backup copies of the supplied disks to protect against accidents Ensure first that the disks are all write protected by sticking write protect labels over the square notch in the edge of the disk Please refer to the OS 9 User s Manual on the format and backup utilities to see how to backup your disks A typical sequence might be commands to enter are in heavy type
8. t to 80 track track double sided drives 3 Running the UPGRADE your floppy disk drives are 40 80 track switchable as the UPGRADE requires 80 Switch on your BBC It should come up with the normal BBC sign on message If not switch off and check that you have everything connected up correctly and that the 6502 or 6512 microprocessor is correctly plugged into the BBC Typing HELP on the BBC should show OS 9 68000 not check that you have the boot with the BBC links set for a 27128 in the ROM directory If ROM correctly installed Switch on your floppy disk drives and place the OS 9 System Disk write protected with a label over the notch into drive 0 Type OS9 The BBC should respond with message that 0S 9 6800 is being booted The drive 0 select light should hear the drive stepping down the disk as the UPGRADE loads the boot file If the drive check that the drives are correctly should come on and you light does not come on connected to the UPGRADE board and that they are switched on If the drive does not step slowly down the disk and the BBC displays an error message check that the drive is set to 80 track and that it is double sided The screen should now clear except for the flashing cu
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