The Operating System (Os); Installing An Operating System Update - Access Virus Rack User Manual

200 CHAPTER 19
Tips, Tricks& Words Of Wisdom

THE OPERATING SYSTEM (OS)

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Installing an operating
system update
Please don't try to load a VIRUS b / kb /
Indigo Operating System into the rack.
We have a special OS for the VIRUS rack
downloadable at our Website.
1 Load the MIDI file into your
sequencer and make sure you have cho-
sen the right MIDI channel and port set-
tings. The MIDI file contains the new
software for the Virus, packed in MIDI
Sysex data.
2 Ensure that the MIDI clock option is
disabled (mixing SysEx data and the MIDI
clock can lead to malfunctions of your
MIDI interface).
3 Start your sequencer to playback the
MIDI-file.
At this stage, you should be able to
watch the VIRUS counting up the
received blocks. If the display shows
"RECEPTION FAILED," then a transmis-
sion error has occurred. This can be
caused by a buffer overrun of the MIDI
interface. In this case, you will need to
upload the entire file again. Lower the
tempo of your sequencer before upload-
ing (e.g. 60 bpm). To proceed, press any
key followed by STORE which will again
enable the receive mode. In case that the
load procedure simply stops at a certain
position, the sequencer you use is not
able to playback the file correctly. In this
case, you need to use another sequencer.
After a successful upload, press STORE to
burn the new operating system into the
flash-ROM. Never switch off the VIRUS
while burning the data! Please ensure
stable power conditions during this pro-
cedure which should take approximately
30 seconds. Now, when the Virus has
reseted itself, you can use the new oper-
ating system!
There's no danger of a flawed MIDI
transmission burning faulty software
into the Virus' memory. When the device
receives MIDI data, this information is
first buffered in the delay memory of the
Virus, where it is checked for errors. If
the device finds an error, the loading
routine is aborted and it will generate
an error message. Then you can try
repeating the process. The old operating
system will remain unharmed. Only