DLTEST(8) 189
NAME
dltest – run diagnostic tests on a DAT-Link interface.
SYNOPSIS
dltest [ –b][–l][–n][–e ][–s][–w ][–t][–u unit ][–D device ]
DESCRIPTION
dltest performs a number of diagnostic tests of a DAT-Link interface. With no options, all tests are
o
run. Selecting certain options instructs dltest to run only those tests. See the description of each
ption for details of the particular tests.
OPTIONS
–b Run the buffer read/write test. This test writes some data into the DAT-Link’s internal buffer
D
and then reads it back, verifying it for consistency. This is a test of the SCSI I/O and of the
AT-Link’s internal dynamic memory. It does not transfer any data to or from the digital
–
audio I/O connectors.
s SCSI I/O speed test. This checks and reports on transfer speeds for SCSI I/O to and from the
r
s
DAT-Link. Peak transfer speed is calculated by measuring transfer times for various transfe
izes. The overhead time reported is the extra time required by the host and/or DAT-Link for
–
each transfer.
t Display the number of seconds since the DAT-Link was powered-up.
n–w DSP read/write test. This test writes data into the DAT-Link’s digital signal processor, the
reads it back and verifies it. This can also be used to display the addresses of memory avail-
–
able to the DAT-Link’s DSP32C.
l Test front panel LED’s. Turns all LED’s on for 2 seconds then off.
–
–e Retrieve the DAT-Link’s internal firmware error log.
n Use the DAT-Link’s currently running firmware rather than loading the latest firmware as
-
s
needed. If an incompatible version of the firmware is currently loaded, this may result in sub
equent errors during communications with the DAT-Link.
e–u unit Specify the DAT-Link unit to use. Default is 0 or the value of the environment variabl
if it is set.
DL_UNIT,
e–D devic
Specify the device file to open to access the DAT-Link. The default is /dev/datlinknn where
NOTES
nn is the DAT-Link unit number.
None of these tests exercise the digital input/outputs of the DAT-Link. Use looptest(8) to test these
o
and perform a complete end-to-end test. Remote control capabilities can be tested using the loop-back
ption of rctrain(1)
ENVIRONMENT
DL_UNIT
Default DAT-Link unit number to use. If not set, unit 0 is used. The value of
D can be overridden by the –u option.L_UNIT
FILES
/dev/datlinknn DAT-Link devices, nn is the unit number of the device.
SEE ALSO
looptest(8), rctrain(1)
.
NOTES
DAT-Link User’s Manual
If the NetAudio server ( netaudiod(8)) is running, dltest will temporarily suspend it’s operations so that
e
dltest can access the DAT-Link directly. When dltest completes, the server will resume. As a side
ffect of these operations, the server will be reset to its startup state and transfers in progress will be
DAT-Link Reference Last change: 1993/03/15 1
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