This section is all about programming and controlling the VP415 using a computer. The computer in question is of course the BBC Master AIV, although it needn't be, because many of the examples here are done using a serial connection, which doesn't require the SCSI interface, or VFS, or even a BBC micro, if you wanted to use some other machine!

Getting going with communicating via RS232 comes under the heading of Domesday 2010 because it was in that configuration of my Domesday Machine that I first tried it out. So, if you need a refresher on how we connect to the VP415 via serial and how to transmit and receive, take a look here.

The picture sets above show how we can control the VP415 from the computer using SCSI, which is the usual method employed in the Domesday System, selecting the VP415's baud rate, how to send F-Codes to the player via a variety of methods, controlling CLV and CAV discs with F-codes, replies received from the player by the computer, my LVInfo utility, calling up the information displays on the VP415, my "Domesday Control" utility working with CAV and CLV discs, and an inverse video option, my "LVStatus" utility, communication modes, and more.

I hope you will click on the picture links above to learn more about using your Beeb to operate the Domesday LV-ROM player.

Click here to return to Using the LV-ROM Player