KB85899
Published: September 14, 2016
Revision: 1.0

MMP Write Block commands that write more than 1444 bytes of data may trigger additional transactions


Applies To:

SNAP-PAC-EB2-FM
SNAP-PAC-EB2-W
G4EB2
SNAP-PAC-S1
SNAP-PAC-S1-FM
SNAP-PAC-S1-W
SNAP-PAC-S2
SNAP-PAC-S2-W
SNAP-PAC-R1
SNAP-PAC-R1-FM
SNAP-PAC-R1-W
SNAP-PAC-R1-B
SNAP-PAC-R2
SNAP-PAC-R2-FM
SNAP-PAC-R2-W
SNAP-PAC-EB1
SNAP-PAC-EB1-FM
SNAP-PAC-EB1-W
SNAP-PAC-EB2

Versions Affected:

Versions affected: All firmware versions


Symptoms:

When an MMP Write Block command is configured to write more than 1444 bytes of data, in addition to a successful Write Response, the result may include an additional Write Response, containing an error code and a random transaction ID.
The error code in the additional Write Response is usually either Powerup Clear Expected (E004) or Invalid Memory Address (E005).

Resolution:

Opto 22 is investigating the issue.

Questions?

Contact: Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com


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