DAP Technology 1394, Руководство по эксплуатации

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Filter/Trigger
229 Copyright © DapTechnology B.V., 2005-2019 - All Rights Reserved., 5/20/2019
None
Clicking this button will deselect all types.
Requests
Clicking this button will select all request types.
Responses
Clicking this button will select all response types.
with Data quadlet
Clicking this button will select all packet types, for which a data quadlet is present in the header.
with Data block
Clicking this button will select all packet types, for which a data block may follow the header.
Header Values
Here you can specify additional header field conditions. As mentioned above, only those fields will be
enabled that are present in all packet types selected in the Primary Packets box. For each enabled field, a
condition may be entered.
A condition can be set by specifying a condition and a value. In the example above for instance, a
condition is set on the Source field.
A packet only does fit the Set if all the conditions specified (and that are not disabled) are true for the
packet.
In the example above for instance, a packet does not fit the Set if the Source field is not equal to 0xFFC1.
The Header Values table has the following columns:
· Field: The Field column displays the header field name. Note that only those fields are enabled that are
present in all the selected types in the Primary Packets box. Fields not enabled are displayed with a
gray color.
·
Cond: Here a compare type can be selected. You define a compare type by clicking in this field and
select the type from the combo box. You can select the following types:
· == condition met if the packet field value equals the specified Value.
·
!= condition met if the packet field value does not equal the specified Value.
·
<= condition met if the packet field value is less than or equal to the specified Value.
· >= condition met if the packet field value is greater than or equal to the specified Value.
You also can select an 'empty' operation meaning that the field condition has to be removed. Selecting
this will also remove the field Value.
Note that for each byte in the packet, only one condition may exist, unless the condition is '=='. You can
for instance not put a '<=' condition on the Transaction Label field if there is also a condition other then
'==' on the Retry Code field. If both conditions are '==', there is no problem. The software will inform you
about possible conflicts as soon as you try to Apply the settings.
· Value: Here you can specify the value for the condition. You can enter values in decimal or
hexadecimal notation. If you clear this field, the compare type in the Cond. columns will be removed
too.
·
Together with the compare type from the Cond. column it specifies the condition the packet field should
have to fit the Set.
· Mask: Before the packet field is compared with the Value, a logical-and is performed with this optionally
Mask value. It can be used to mask one or more bits before the compare is done. For each bit in the
mask with value 0, the corresponding bit in the packet field and the corresponding bit in the specified
Value will cleared before they are compared.
If in the example above a mask value of 0x003F was specified for the Source field, then effectively only
the lower 6 bits are compared because all other bits will be zero-ed by the mask operation.
Data Values
Here you can specify additional data field conditions. Basically it works the same as the header field
conditions, but because the format and size of data fields are not fixed, a powerful packet data editor has
been added. Here you can select the format for all kind of data payload types.
In the example above for instance, the CommandOrb format (part of the SBP2 support) has been
selected as the packet payload format. This gives you some fields on which conditions can be set. In the
example above the conditions are such that a packet will fit the set only if the rq_fmt field equals "SBP2
standard", the direction field equals "Read", the speed field equals "S100" and the 'data size' field is