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One of the cartridge slots permanently holds ANFS and Exmon II. To improve its versatility I have installed an updated OS (this was the Retroclinic variant which is switchable between OS types and includes Y2K compatibility it also has a Datacentre driving capability), an internal Datacentre and CF-card, ADFS providing 4x500Mb HDD. The Master already comes with 4x16K SWR banks built in, one internal 16K ROM and two cartridge slots to hold 4xROMs. If you have a 128K B+ you will lose 32 SWR but gain another 16/32K ROM socket.ĥ. The B+ also has an MMC card fitted and can load images into up to 6xSWR banks from Shift-Break. I use a Mega3 ROM in one, Interbase in another then have 2x32EPROMs in the others programmed with my 'must have' ROMs. This leaves 4x16/32K ROM sockets on the main board. for the 64K BBC B+ the method of piggy-backing 3x32K static RAM chips in one ROM/RAM socket provides the most versatile user experience. A disadvantage for users with Beebs which are mobile is that the flying lead clips may become dislodged during transit.Ĥ. The BooBip EEPROM board is fantastic and so simple to use and is non-volatile. A BBC micro with MMFS and 1770 DFS installed can be set up to load SWR from Shift-Break incredibly easily. If using an 8271 DFS loading SWR images is a little fiddly compared to a 1770 DFS which can use the in-built *SRLOAD command. for the BBC micro then the BooBip ones are the best I have used. there is a need for both sideways RAM and extra ROMs - some very useful ROMs come on carrier boards squeezing up to 128K into a single 16K footprint,ģ. modern variants are far better than 'authentic' retro ones - they are quicker to use and consume less power,Ģ. I believe Boobip also offers a non battery backed SWRAM solution that will work in conjunction with his EEPROM board.įrom years of experience of using various sideways RAM boards, extension ROM boards I have concluded ġ. This board also doesn't provide battery backup for the SWRAM. It works well, but is not quite such a robust solution as the other 'fully populated' board. I removed the header on my board, and replaced it with a 90Deg header, which solved this problem for me. When you attach the ribbon cable to the header, it again makes it difficult to secure down the keyboard. Also, the position of the 6 pin header on the board is not great either. Some of these ICs are underneath the keyboard, making it quite difficult to keep them in place when the keyboard is secured down in position. It also required 6 clips to be connected to the legs of various ICs on the main BBC board (assuming you don't want to solder wires to the legs of ICs). It also works very well, but I had to make a critical modification to allow flashing from the BBC. However, it can be quite difficult to remember how all the memory is laid out (which banks are EEPROM, which are RAM, and which are write protected RAM).Īnother 'fully populated' solution is the RAM / ROM board built by kjell.
#Book for stag pp28 eprom programmer for sale qrz price install#
The board is very easy to install and is of good quality, requiring only a single jumper wire to be connected to one of the jumpers on the main board. This frees up main memory for other uses, whilst still being able to load and save to 'disk'. Also, if you want to use MMFS (modern disk emulation solution), then you can load the ROM into a SWRAM bank, and it will dynamically use some of the SWRAM memory keeping PAGE at &E00 (instead of &1900). Having SWRAM on your computer can be very handy, as it can be used as additional storage by several games. The battery is to provide backup to the SWRAM banks. It effectively provides 8 x 16k EEPROM banks and 8 x 16K SWRAM banks. What I don't get is why the 'flash memory" requires a battery backup? It is twice as expensive but does provides a fully populated solution. BitSeeker wrote:I also came across this device: