|
Frequently Asked Questions
[ Miscellaneous Questions
| Commodore 64 Questions ]
See also:
Software Downloads (Drivers etc.)
Miscellaneous Questions
-
SCSI Questions
- An elephant stomped onto my computer, what should I do now?
Commodore 64 Questions
- Does MMC64 work in combination with Retro Replay, RR-Net and MP3@64 (or Silversurfer)?
- Does MMC Replay work in combination with RR-Net and MP3@64 (or Silversurfer)?
- Where can I find the MMC Replay user manual?
- What type of power supply should I use with the Chameleon cartridge?
Miscellaneous Questions
What does a correct SCSI daisy chain look like?
All of the devices on the SCSI bus must be connected in one daisy chain,
intersections are not allowed. It doesn't matter where the devices are
attached, even the host adapter (often referred to as "controller")
may sit in-between. In fact the host adapter must be in-between when internal
and external devices are attached.
[top of page]
Which unit number(s) should I choose for my SCSI device(s)?
SCSI devices can have unit numbers from 0 to 7 (UW-SCSI: 0 to 15), which can
usually be set by ID jumpers (other devices like scanners sometimes have a dial
or similar, their setting should be fairly obvious). Those jumpers normally
have labels like ADDR, ID BIT 0/1/2 (/3 when UW-SCSI), 1/2/4 or similar. The
jumpers have binary values, i.e. the first (lowest significant) jumper is 1,
the second 2, the third 4 (and when using UW-SCSI, there's a fourth jumper
with the value 8). The unit number is a sum of those values as the table shows.
X denotes a closed jumper. Example: To get unit number 6, you'd have to
set the jumpers 2 and 1 (2^2 + 2^1 = 4 + 2 = 6).
You should avoid to set SCSI devices to unit 7, this number is usually
already occupied by the host adapter ("controller"). Please make
sure that every device in the daisy chain has its own unique unit number.
| |
| 2 |
1 |
0 |
Unit |
| |
|
|
0 |
| |
|
x |
1 |
| |
x |
|
2 |
| |
x |
x |
3 |
| x |
|
|
4 |
| x |
|
x |
5 |
| x |
x |
|
6 |
|
[top of page]
How to terminate the SCSI bus correctly?
The SCSI standard dictates that the physical ends of the
daisy chain must be terminated, while any device in-between
must not be terminated. Please make sure that the devices
at the ends of your daisy chain (and only those two!) have the
termination set (usually selectable by a jumper labelled TERM, TE
or SE), or that there is a terminator pack at the respective end
where the last device is not terminated. It is also important
to make sure that any device in-between is not terminated, so
please check their jumpers too.
[top of page]
An elephant stomped onto my computer, what should I do now?
Please remove any remaining elephant parts from the computer (or remove
any remaining computer parts from the elephant, the choice is yours).
Check the elephant and the computer to see if they still work, chances
are the elephant still does. If not, please go and see a veterany
(or the local knacker if it's too late for repair). You should really
consider keeping your elephants and computers separately, especially
since elephant-related computer damages are seldomly covered by
warranty.
Commodore 64 Questions
Does MMC64 work in combination with
Retro Replay, RR-Net and MP3@64 (or Silversurfer)?
Yes, they all work together nicely. The clockport of
MMC64 is
software-compatible with the
Retro Replay.
That means RR-Net works fine with Contiki. If a Retro Replay
is plugged in the pass-through of MMC64, then the MMC64's
clockport moves to a different address, so RR-Net
must be placed on the Retro Replay's clockport to
work properly. The MMC64 clockport can then be
used for a Silversurfer or an
MP3@64,
in other words: You have two fully working clockports
in your CBM system.
Please mind the following drawbacks: Commodore power
supplies are notoriously under-sized. You might need a
stronger power supply. Also, the C128 cannot be considered
C64-compatible in regard to the expansion port. Especially
the MMC64 with its state-of-the-art 3.3V logic has serious
problems with most C128 models, so there's no guarantee
MMC64+RR-Net work properly on a C128. The usual recommendation
is: Get a real C64, and all problems will be gone.
[top of page]
Does MMC Replay work in combination
with RR-Net and MP3@64 (or Silversurfer)?
The first version of the RR-Net
module doesn't fit the MMC Replay mechanically, but this version
is no longer available anyway. The second version of RR-Net
was designed with the MMC Replay in mind, both fit into
a standard
cartridge shell
together.
MP3@64 and Silversurfer are a different matter, those two
can currently not be used with the MMC Replay (as of February 2008).
[top of page]
Where can I find the MMC Replay user manual?
Right here
(PDF file, February 7, 2008).
[top of page]
What type of power supply should I use with the Chameleon cartridge?
The power supply for the stand-alone mode should have 5V/1000mA, anything less can lead
to severe problems when other hardware is attached (especially older PS/2 keyboards can be
troublesome in this regard). Please do not use a weaker power supply with your Chameleon cartridge!
[Seitenanfang]
This page is under construction. Please have a
look at our download page
if you are looking for software/driver downloads/updates.
|
|
|
