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User Diagnostics Manual (USERDIAG.TXT)
V 1.1.0 7/28/93
Digiboard, Inc.
Table Of Contents
1.0 Scope
2.0 Applicable Documents
3.0 Memory Map Utility (DIGIMMAP.EXE)
3.1 General Description
3.1.1 Display Conventions
3.1.2 Keyboard Conventions
3.2 Functional Description
3.2.1 BIOS Scan
3.2.2 RAM Scan
3.2.3 User Interface
3.3 Product Limitations
4.0 User Diagnostic Utility (DIGIDIAG.EXE)
4.1 General Description
4.1.1 Display Conventions
4.1.2 Keyboard Conventions
4.1.3 Supported Product Families For The User Diagnostic's
4.2 Functional Description
4.2.1 General Information Screen
4.2.2 Main Menu Screen
4.2.3 Main Help Screen
4.2.4 System Error Messages
4.3 PC/Xe Board, PC/Xi Board, and 2Port Board Product Family
4.3.1 General Information
4.3.2 Help Screens
4.3.3 Basic Test Descriptions
4.3.4 Error Messages
4.4 MC/Xi Board Product Family
4.4.1 General Information
4.4.2 Help Screens
4.4.3 Basic Test Descriptions
4.4.4 Error Messages
4.5 C/X Host Adapter Product Family
4.5.1 General Information
4.5.2 Help Screens
4.5.3 Basic Test Descriptions
4.5.4 Error Messages
1.0 Scope
This document contains information related to the User Diagnostics
package. All files for this package are contained on the floppy disk,
and include this document, two executable programs, and release notes.
This document explains the memory map utility (DIGIMMAP.EXE) and the
user diagnostics (DIGIDIAG.EXE).
2.0 Applicable Documents
PC/Xe (old) Board Installation Guide DBI 90028600
PC/Xe (new) Board, PC/Xi board Installation Guide DBI 90026700
2Port Board Installation Guide DBI 90028300
MC/Xi Board Installation Guide DBI 90026600
C/X Host Adapter Installation Guide DBI 90027700
3.0 Memory Map Utility (DIGIMMAP.EXE)
3.1 General Description
The memory map utility is an MS-DOS based executable program that is
designed to aid in the installation of DigiBoard hardware by detailing
locations in memory that are available for the DigiBoard product.
3.1.1 Display Conventions
When the memory map utility is executed, a main screen will appear.
From the main screen, the operator may select a 'help' screen,
execute the utility, or return to the operating system.
The upper portion of the screen displays the current version of the
utility and copyright information. The middle of the screen displays
data for operator's current selection. The lower portion of the
screen is used for the operator interface.
3.1.2 Keyboard Conventions
Three keyboard entries are used by the memory map utility. <E> is
used to execute the utility, <F1> displays the 'help' screen, and
<Esc> is used to return to the operating system. The utility uses
the bottom of the screen to prompt the operator for keyboard inputs.
3.2 Functional Description
DIGIMMAP attempts to locate hardware in the upper 384K of the first
megabyte of memory of an IBM PC or compatible. The memory range
checked is from A0000H to FFFFFH. Typical devices in this area may
include video ROMs, system ROMs, hard disk adapters, and network
adapters. DIGIMMAP performs a ROM scan and a RAM scan to locate
hardware residing in upper memory.
3.2.1 BIOS Scan
This portion of the utility searches from C0000H to EFFFFH in 2K
increments by checking the first two bytes of the region for a BIOS
signature of 55AAH. If a ROM signature is found, the third byte
indicates the number of 512 byte sections and the appropriate area
is marked as unavailable.
3.2.2 RAM Scan
This is a scan of the memory regions which were unused accoding to
the previous test. The RAM scan also breaks memory down into 2K
sections. If the section is writable the section is marked as RAM
as is unavailable for the DigiBoard product. If it is not writable,
another type of ROM check is done, followed by either marking the
area as ROM, or available for DigiBoard product installation. ROMs
found in the F0000H to FFFFFH area are considered System ROMs.
3.2.3 User Interface
The following steps are suggested to run this utility.
1. Boot the system normally. This brings up the system in its
normal configuration. This should cause the RAM on any adapters
to be ON. If the memory is switched OFF, DIGIMMAP may not
locate it.
2. Place a clean (NO TSR's and NO memory managers) boot floppy in
drive A. Press Ctrl-Alt-Del to reboot the system. DO NOT use
use a hardware reset to reboot as this will typically reset any
adapters in the system.
3. Place the utility disk in drive A, and enter DIGIMMAP
at the system prompt.
4. The main menu will be displayed.
The following warning messages are displayed.
Memory managers, used to load drivers and TSRs into the
DOS high memory area, may cause DIGIMMAP to display incorrect
results.
DO NOT run DIGIMMAP under Windows. Windows uses the high
memory region, which may cause DIGIMMAP to display incorrect
results.
DIGIMMAP does writes to high memory. This may cause the
system to lock up. Do not be alarmed, just reboot the system.
5. Pressing <E> from the main menu display will begin the high memory
search. This is a four part process. First it scans from C0000H
to C7FFFH for video ROMs, then scans C8000H to DFFFFH for general
ROMs, then scans E0000H to EFFFFH for expansion ROMs. The last
part scans memory from A0000H to FFFFFH for RAM and other ROMs.
For this check, a memory write is done to memory locations.
Messages will appear at the bottom of the screen as the utility goes
through the four checks. When these are complete, two maps will be
displayed. The list on the left will sequentially display the results
and the map on the right will display a grid map of the same results.
These results are an educated guess of the areas in high memory that
could be used to install the DigiBoard product. Make note of the
area(s) that are large enough to accomodate the product's memory
requirements.
3.3 Product Limitations
If an adapter has RAM mapped to the high memory area but it only gets
activated (mapped) upon instruction from the driver (like some
DigiBoard products) and if this instruction has not been given,
the adapter may go undetected.
Any extended memory manager will cause DIGIMMAP to deliver false data.
Since the memory manager is utilizing the upper memory area itself,
DIGIMMAP will confuse this usage with hardware RAM areas. In some
cases a memory manager will install itself like a BIOS. That is to
say, it will contain a 55AAH signature in the first two bytes of its
driver.
If a driver loads itself high, DIGIMMAP will have the same difficulties
with the driver as it has with the extended memory managers. The
general rule is to keep the software out of high memory when DIGIMMAP
is executing.
DIGIMMAP will try to write to the first byte of each 2K block of
memory that is found not to contain ROM. This could have adverse
effects on the system if the adapter interprets it as an instruction.
This is unlikely, but possible.
4.0 User Diagnostic Utility (DIGIDIAG.EXE)
4.1 General Description
The user diagnostic utility is an MS-DOS based executable program that
is designed to aid in the installation and troubleshooting of
DigiBoard hardware by performing a series of tests on the board.
4.1.1 Display Conventions
When the user diagnostic utility is executed, a general information
screen is displayed followed by the main screen. From the main
screen, the operator may select a 'help' screen, execute the utility,
or return to the operating system.
There are four sections to the display. The upper section of the
screen displays the current version of the utility and copyright
information. The next section is the parameter selection section.
The next section displays test results when the diagnostic is
executing. The lower portion of the screen is used for the operator
interface.
4.1.2 Keyboard Conventions
There are multiple keyboard entries for the user diagnostic utility.
Board parameters have unique keyboard entries. When all parameters
have been entered, press <E> to execute the utility. Pressing <F1>
displays various help screens. <Esc> is used to return to the
operating system. The utility uses the bottom of the screen to
prompt the operator for keyboard inputs.
4.1.3 Supported Product Families For The User Diagnostic's
The current release of the user diagnostic supports the PC/Xe boards,
PC/Xi boards, ISA 2Port boards, MC/Xi boards,and the C/X host adapter
boards.
4.2 Functional Description
The user diagnostic is a program that will test a DigiBoard for system
compatability and board reliability. After all parameters have been
entered, the operator may execute the diagnostic. A configuration
file (DIGIDIAG.CFG) is written to disk when program execution begins.
When the program is run again, the configuration information is read
and displayed for the operator. The operator can immediately run the
diagnostics by pressing <E>, or reenter any parameters prior to running
the diagnostics.
4.2.1 General Information Screen
This screen gives the operator an overview of how to correctly
execute the user diagnostics. Appropriate warning messages are
also displayed.
4.2.2 Main Menu Screen
Following the general information, the main screen appears. This
program is designed to support multiple DigiBoard products. The
operator must select a product family displayed at the bottom of the
screen.
4.2.3 Main Help Screen
Prior to selecting a product family, pressing <F1> will display a
product family information screen.
4.2.4 System Error Messages
One of the configuration items that is stored is the system bus type.
This is either ISA/EISA or Micro Channel(MCA). If the stored data does
not match the bus the program has found, the following error message
is displayed.
ERROR! Disk file & diagnostics have found a bus conflict. ERROR!
Disk file reported MCA bus. Diagnostic reported ISA bus.
(or)
Disk file reported ISA bus. Diagnostic reported MCA bus.
Suggest that the DIGIDIAG.CFG file be erased, then rerun diagnostics.
When DIGIDIAG.CFG is erased the operator must enter new parameters
and the new DIGIDIAG.CFG will be written upon execution. Executing
the diagnostic again on the same machine should result in no further
bus conflicts.
4.3 PC/Xe Board, PC/Xi Board, 2Port Board Product Family
This product family is an intelligent board with an 80186 CPU
embedded on the board. It communicates with the host via dual ported
memory and interrupts. It supports asynchronous communication with
2, 4, 8, or 16 ports.
4.3.1 General Information
The board's dual ported memory must either be 8K, 64K, or 128K. The
diagnostic is run in upper memory below the 1 megabyte boundary.
Selecting a memory address range for the board may be assisted by
the DIGIMMAP.EXE program, which is supplied with this package.
4.3.2 Help Screens
There are two help screens associated with this product family.
The first explains each of the parameter entries, and the second is
a visual duplication of the switch settings for the boards.
4.3.3 Basic Test Descriptions
There are three basic test areas for this product family. There are
a number of subtests within each basic test, depending on the board
type.
The first basic test is the host's memory test. The diagnostic
writes/reads/compares data written to the board's dual ported memory.
Various patterns of bytes/words are checked for the entire dual ported
memory window. Any failure is considered critical and the tests are
terminated with error information displayed. Failure could indicate
that a memory conflict exists. The memory utility (DIGIMMAP.EXE) can
be used to find a possible alternative memory window.
The second basic test begins communicating with the board via the
selected host base address. Code is downloaded to the board and a
response is necessary to post the information. Other tests include an
IRQ test, window enable test (2Port), and window select test (2Port).
Any failure is considered critical and the tests are terminated with
error information displayed.
The third basic test is the port test. The parameters allow for a
single port to be tested. There are other parameters that are used
in conjunction with the port test. The diagnostic package includes an
RS-232 loopback cable for testing. The signals that are looped back
on the supplied cable are TxD to RxD, DTR to DSR & DCD, and RTS to CTS
& RING. The PC/Xi has a RS-422 option and a loopback cable must be
assembled to perform the external test; the necessary loopback signals
are TxD to RxD and RTS to CTS. The loopback parameter enables the
operator to test the port in the internal or external mode. The
loopback cable must be installed for valid test results in the
external mode. When external testing is done, both data and control
signals are tested. In internal mode only data is tested. Following
the data tests an interrupt test is performed on the selected port.
The Continuous parameter allows the option of continually running the
port test(s). The Stop On First Error parameter allows the test to
stop when an error is detected.
The loopback plug for the RJ-45 version consists of a 10-pin RJ-45
plug wired as follows:
Pin 3 connected to pins 1 & 8 (RTS to RI and CTS);
Pin 5 connected to pin 6 (TxD to RxD);
Pin 9 connected to pins 2 & 10 (DTR to DSR and DCD).
The loopback plug for the DB-25 version consists of a female DB-25
connector wired as follows:
Pin 4 connected to pins 22 & 5 (RTS to RI and CTS);
Pin 2 connected to pin 3 (TxD to RxD);
Pin 20 connected to pins 6 & 8 (DTR to DSR and DCD).
The loopback plug for the DB-9 version consists of a female DB-9
connector wired as follows:
Pin 7 connected to pins 9 & 8 (RTS to RI and CTS);
Pin 3 connected to pin 2 (TxD to RxD);
Pin 4 connected to pins 6 & 1 (DTR to DSR and DCD).
4.3.4 Error Messages
There are two places where error messages may appear. The first
is at the bottom of the screen in the operator interface section.
Error messages here relate to parameter entry. These messages
typically prompt the operator for another entry or request another
parameter first. All parameters must be entered before execution
can begin.
The second place error messages appear is is the test information
section. These will be displayed in red with 'Test FAILED' followed
by a error message to identify the error.
Memory Error. If an error occurs during the host's dual ported
memory tests, a message will appear that displays the address
(segment:offset), expected/written value, and the read value. The
host displays the message as:
Segment:offset = ????:????. Expected = ????. Read = ????.
Board Reset Error. If the memory tests were successful, the host
attempts to reset the board. If the board does not reset, the host
displays:
Hardware reset error. Possible I/O port conflict.
Board Load Error. If the board resets, the host attempts to
communicate with the board by downloading a program (BIOS) and
waiting for a response. If the board does not respond, the host
displays:
BIOS load error. Possible memory conflict.
If the BIOS load is successfully, the host displays board information
including board type, memory available, and ports available. If
there were any initialization errors, they will be displayed as:
Memory errors.
Port(s) missing.
Port(s) error.
IRQ Error. If an IRQ was selected and an error occurred, a message
will indicate that the diagnostic did not receive an IRQ from the
board. The 2Port board has two additional errors: interrupt
acknowledge error, and interrupt pending error. The host will
display the following error message(s):
The diagnostic did not receive an IRQ.
Interrupt acknowledge error.
Interrupt pending error.
Window Enable Error. This test is only performed on the 2Port board.
One or both of the memory enable bits was found to be in error. The
host displays the following message:
One or both of the memory enable bits are faulty.
Window Select Error. This test is only performed on the 2Port board
with the 8K window size selected. An error message with the window
(1-8) that failed will be displayed. A base window select error is
also possible. The displays host the following message(s):
Window ? select error.
Base window select error.
8K windowing feature is faulty.
Port Errors. The first error that could appear is that the port
number selected is outside the range of ports supported by this
board. The maximum port number supported by the board is determined
when BIOS code is downloaded and executed on the board. The test will
terminate at this point and display:
The selected port number is invalid for this board.
The host sends a command to the board to intitiate the port test. If
no response to the command is received, the following message is
displayed:
Board communication error during test setup.
If the command is successful, the board begins testing the port. The
host has a timeout that requires the board to finish the test in a
certain amount of time. If the host's timeout expires, the following
message is displayed:
Port ?? failed. Test timeout occurred.
For either the internal or external data test the received data is
compared to the transmitted data. If the they do not compare, the
following message is displayed:
Port ?? failed. RX data did not compare with TX data.
There is a timeout on the board for the transmission and reception of
data. If the board's timeout expires, the following message is
displayed:
Port ?? failed. Port timeout occurred during TX/RX of data.
The control signals are only tested when the loopback connector is
installed. Depending on the control signal failure, one of the
following messages is displayed:
Port ?? failed. DCD input signal failed.
Port ?? failed. DSR input signal failed.
Port ?? failed. CTS input signal failed.
Port ?? failed. RING input signal failed.
Port ?? failed. DCD & DSR failed. Possible DTR failure.
Port ?? failed. CTS & RING failed. Possible RTS failure.
Port ?? failed. DCD/DSR/CTS/RING failed. Port failure.
Port ?? failed. General port failure.
There is a timeout on the board for the completion of the test.
If the board's timeout expires, the following message is displayed:
Port ?? failed. Test timeout occurred.
The port interrupt test checks the ability of the selected port to
generate an interrupt to the CPU on the board. This is done by
traansmitting 1 byte of data in internal loopback mode. If an error
occurs, one of the following message is displayed:
Port ?? failed. Port interrupt did not occur.
Port ?? failed. RX data did not compare with TX data.
Port ?? failed. Port timeout occurred during TX/RX of data.
4.4 MC/Xi Board Product Family
These are intelligent boards with an 80186 CPU embedded on the board.
They communicate with the host via dual ported memory and interrupts.
They support asynchronous communication with 4, 8, or 16 ports.
4.4.1 General Information
The board's dual ported memory is 32K. The diagnostic is run in
upper memory below the 1 megabyte boundary. Selecting a memory
address range for the board may be assisted by the DIGIMMAP.EXE
program, which is supplied with this package. When the board is
installed with the POS program, these values will be used for the
user diagnostics.
4.4.2 Help Screens
There is a help screen associated with this product family. It
explains each of the parameter entries.
4.4.3 Basic Test Descriptions
There are three basic test areas for this product family. There are
a number of subtests within each basic test.
The first basic test is the host's memory test. The diagnostic
writes/reads/compares data written to the board's dual ported memory.
Various patterns of bytes/words are checked throughout the entire
dual ported memory window. Any failure is considered critical and
the tests are terminated with error information displayed. Failure
could indicate that a memory conflict exists. The memory utility
(DIGIMMAP.EXE) can be used to find a possible alternative memory
window.
The second basic test begins communicating with the board via the
selected host base address. The board is released from reset and the
code in the EPROMs is executed and a response is necessary to post
the information. Other tests include an IRQ test and window select
test. Any failure is considered critical and the tests are terminated
with error information displayed.
The third basic test is the port test. The parameters allow for a
single port to be tested. There are other parameters that are used
in conjunction with the port test. The diagnostic package includes an
RS-232 loopback cable for testing. The signals that are looped back
on the supplied cable are TxD to RxD, DTR to DSR & DCD, and RTS to CTS
& RING. The PC/Xi board has an RS-422 option and a loopback cable
must be assembled to perform the external test; the necessary loopback
signals are TxD to RxD and RTS to CTS. The loopback parameter enables
the operator to test the port in the internal or external mode. The
loopback cable must be installed for valid test results in the
external mode. When external testing is done, both data and control
signals are tested. In internal mode only data is tested. Following
the data tests an interrupt test is performed on the selected port.
The Continuous parameter allows the option of continually running the
port test(s). The Stop On First Error parameter causes the test to
stop when an error is detected.
The loopback plug for the RJ-45 version consists of a 10-pin RJ-45
plug wired as follows:
Pin 3 connected to pins 1 & 8 (RTS to RI and CTS);
Pin 5 connected to pin 6 (TxD to RxD);
Pin 9 connected to pins 2 & 10 (DTR to DSR and DCD).
The loopback plug for the DB-25 version consists of a female DB-25
connector wired as follows:
Pin 4 connected to pins 22 & 5 (RTS to RI and CTS);
Pin 2 connected to pin 3 (TxD to RxD);
Pin 20 connected to pins 6 & 8 (DTR to DSR and DCD).
4.4.4 Error Messages
There are two places where error messages may appear. The first
is at the bottom of the screen in the operator interface section.
Error messages here relate to parameter entry. These messages
typically prompt the operator for another entry or request another
parameter first. All parameters must be entered before execution
can begin.
The second place error messages appear is is the test information
section. These will be displayed in red with 'Test FAILED' followed
by a message to identify the error.
Memory Error. If an error occurs during the host's dual ported
memory tests, a message will appear that displays the address
(segment:offset), expected/written value, and the read value. The
host displays the message as:
Segment:offset = ????:????. Expected = ????. Read = ????.
Board Reset Error. If the memory tests were successful, the host
attempts to reset the board. If the board does not reset, the host
displays:
Hardware reset error. Possible board I/O port address conflict.
Board Load Error. If the board resets, the host attempts to
communicate with the board by downloading a program (BIOS) and
waiting for a response. If the board does not respond, the host
displays:
BIOS start error. Possible memory conflict.
If the BIOS load is successful, the host displays board information
including board type, memory available, and ports available. If
there were any initialization errors they will be displayed as:
Memory errors.
IRQ Error. If an IRQ was selected and an error occurred, a message
will indicate that the diagnostic did not receive an IRQ from the
board. The host will display the following error message:
The diagnostic did not receive an IRQ.
Window Select Error. An error message with the window (1-8) that
failed will be displayed. A base window select error is also
possible. The host displays the following message(s):
Window ? select error.
Base window select error.
32K windowing feature is faulty.
Port Errors. The first error that could appear is that the port
number selected is outside the range of ports supported by this
board. The maximum port number supported by the board is determined
when BIOS code is downloaded and executed on the board. The test will
terminate at this point and display:
The selected port number is invalid for this board.
The host sends a command to the board to intitiate the port test. If
no response to the command is received, the following message is
displayed:
Board communication error during test setup.
If the command is successful, the board begins testing the port. The
host has a timeout that requires the board to finish the test in a
certain amount of time. If the host's timeout, expires the following
message is displayed:
Port ?? failed. Test timeout occurred.
For either the internal or external data test the received data is
compared to the transmitted data. If the they do not compare, the
following message is displayed:
Port ?? failed. RX data did not compare with TX data.
There is a timeout on the board for the transmission and reception of
data. If the board's timeout expires, the following message is
displayed:
Port ?? failed. Port timeout occurred during TX/RX of data.
The control signals are only tested when the loopback connector is
installed. Depending on the control signal failure, one of the
following messages is displayed:
Port ?? failed. DCD input signal failed.
Port ?? failed. DSR input signal failed.
Port ?? failed. CTS input signal failed.
Port ?? failed. RING input signal failed.
Port ?? failed. DCD & DSR failed. Possible DTR failure.
Port ?? failed. CTS & RING failed. Possible RTS failure.
Port ?? failed. DCD/DSR/CTS/RING failed. Port failure.
Port ?? failed. General port failure.
There is a timeout on the board for the completion of the test.
If the board's timeout expires, the following message is displayed:
Port ?? failed. Test timeout occurred.
The port interrupt test checks the ability of the selected port to
generate an interrupt to the CPU on the board. This is done by
transmitting 1 byte of data in internal loopback mode. If an error
occurs, one of the following messages is displayed:
Port ?? failed. Port interrupt did not occur.
Port ?? failed. RX data did not compare with TX data.
Port ?? failed. Port timeout occurred during TX/RX of data.
4.5 C/X Host Adpater Product Family
These are intelligent adapters with an 80186 CPU embedded on the board.
They communicate with the host via dual ported memory and interrupts.
They support synchronous or asynchronous communication with 2 ports.
There are six adapters testable with the user diagnostics. The
three earlier version adapters (ISA/EISA/MCA) are RS-422 only. The
more recent adapters can select RS-232. Fault isolation relays are
also present in the newer adapters.
4.5.1 General Information
The adapter's dual ported memory is 32K. The diagnostic is run in
upper memory below the 1 megabyte boundary. Selecting a memory
address range for the adapter may be assisted by the DIGIMMAP.EXE
program, which is supplied with this package. When the adapter is
installed with the POS program, these values will be used for the
user diagnostics.
4.5.2 Help Screens
There are two help screens associated with this product family.
The first explains each of the parameter entries, and the second is
a visual duplication of the switch settings for the ISA host adapters.
4.5.3 Basic Test Descriptions
There are three basic test areas for this product family. There are
a number of subtests within each basic test.
The first basic test is the host's memory test. The diagnostic
writes/reads/compares data written to the adapter's dual ported memory.
Various patterns of bytes/words are checked for the entire dual ported
memory window. Any failure is considered critical and the tests are
terminated with error information displayed. Failure could indicate
that a memory conflict exists. The memory utility (DIGIMMAP.EXE) can
be used to find a possible alternative memory window.
The second basic test begins communicating with the adapter via the
selected host base address. Code is downloaded to the adapter and a
response is necessary to post the information. Other tests include an
IRQ test, and window select test. Any failure is considered critical
and the tests are terminated with error information displayed.
The third basic test is the port test. The parameters allow for a
single port to be tested. There are other parameters that are used
in conjunction with the port test. The terminator plug (part number
60000388) supplied with the adapter can be used for external loopback
testing. The loopback parameter enables the operator to test the
port in the internal or external mode. The terminator cable must be
installed for valid test results in the external mode.
The earlier adapters use only RS-422 and the newer adapters have
RS-232 selectability. The newer adapters also have fault isolation
relays. When external loopback is selected on the newer adapters,
clicking can be heard due to the testing of the relays. Data is
transmitted at 1.2 MB for RS-422 and 57.6 KB for RS-232.
The Continuous parameter allows the option of continually running the
port test(s). The Stop On First Error parameter allows the test to
stop when an error is detected.
The terminator plug consists of a male HD-15 connector wired as
follows:
Pin 1 to pin 6;
Pin 2 to pin 7;
Pin 3 to pin 15;
Pin 4 to pin 9;
Pin 5 to pin 10;
Pin 8 to pin 14;
4.5.4 Error Messages
There are two places where error messages may appear. The first
is at the bottom of the screen in the operator interface section.
Error messages here relate to parameter entry. These messages
typically prompt the operator for another entry or request another
parameter first. All parameters must be entered before execution
can begin.
The second place error messages appear is is the test information
section. These will be displayed in red with 'Test FAILED' followed
by a error message to identify the error.
Memory Error. If an error occurs during the host's dual ported
memory tests, a message will appear that displays the address
(segment:offset), expected/written value, and the read value. The
host displays the message as:
Segment:offset = ????:????. Expected = ????. Read = ????.
Adapter Reset Error. If the memory tests were successful, the host
attempts to reset the adapter. If the adapter does not reset, the host
displays:
Hardware reset error. Possible board I/O port address conflict.
Adapter Load Error. If the adapter resets, the host attempts to
communicate with the adapter by downloading a program (BIOS) and
waiting for a response. If the adapter does not respond, the host
displays:
BIOS load error. Possible memory conflict.
If the BIOS load is successful, the host displays adapter information
including adapter type, memory available, and ports available. If
there were any initialization errors they will be displayed as:
Memory errors.
Port(s) missing.
DMA errors.
Window Select Error. The number of windows is either 4 or 16
depending on the amount of memory on the adapter (128K or 512K).
An error message with the window that failed will be displayed.
A base window select error is also possible. The host displays the
following message(s):
Window ? select error.
Base window select error.
32K windowing feature is faulty.
Fuse Test Error. The new host adapters have an auxillary 5 volt
supply that is fused. The condition of these fuses can be tested.
If one or both of the fuses are open the following messsage is
displayed:
One or both of the Auxillary 5 volt fuses are open.
IRQ Error. If an IRQ was selected and an error occurred, a message
will indicate that the diagnostic did not receive an IRQ from the
adapter. The host will display the following error message:
The diagnostic did not receive an IRQ.
The host sends a command to the adapter to intitiate the port test. If
no response to the command is received, the following message is
displayed:
Board communication error during test setup.
If the command is successful, the adapter begins testing the port. The
host has a timeout that requires the adapter to finish the test in a
certain amount of time. If the host's timeout expires, the following
message is displayed:
Port ?? failed. Test timeout occurred.
For either the internal or external data test the received data is
compared to the transmitted data. If the they do not compare, the
following message is displayed:
Port ?? failed. RX data did not compare with TX data.
There is a timeout on the adapter for the transmission and reception of
data. If the adapter's timeout expires, the following message is
displayed:
Port ?? failed. Port timeout occurred during TX/RX of data.