Burst Electronics MCG-3 User Manual
Page 42
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MCG-3 Color Micro Character Generator
R
R
R
R
RD R
D R
D R
D R
D RU
U
U
U
UN D
N D
N D
N D
N DIIIIIAG
AG
AG
AG
AGN
N
N
N
NO
O
O
O
OST
ST
ST
ST
STIIIIIC
C
C
C
CS
S
S
S
S
PURPOSE: Runs diagnostic tests from a remote location.
FORMAT: R
R
R
R
RD
D
D
D
D
DESCRIPTION: This command is exactly the same command used in
the utility menu and as such it displays the results of the tests on BOTH
the MCG-3 screen and the PC screen. The results of the RS232 loop
test are not sent to the PC as a loop plug can not be installed while the
PC is connected to the MCG-3. However, if you would like your
software to be able to conduct the RS232 loop test, simply echo back
all characters sent by the MCG-3 after the results of the ROM test. The
test string sequence, in ASCII, is as follows:
(space)1234567890(space)abcdefghijklmnopqrstuvwxyz
(space)1234567890(space)ABCDEFCHIJKLMNOPQESTUVWXYZ
Spaces are 32d (ASCII).
Possible results of the RAM and ROM tests are as follows:
Testing RAM...(space)RAM Test Passed!
Testing RAM...(space)RAM Test Failed.
Testing ROM...(space)ROM Test Passed!
Testing ROM...(space)ROM Test Failed.
Each line ends with a carriage return (13d), linefeed (10d).
One easy way to interpret the results of the tests is to look for either a
period or an exclamation point just before the carriage return, line feed.
The results of the diagnostics test will flash momentarily on the video
screen, then the video will return to the last page displayed. The results
will be maintained on the PC screen.