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KB85899
MMP Write Block commands that write more than 1444 bytes of data may trigger additional transactions
Revision:  1.0
Published:  9/14/2016
Applies To
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
SNAP-PAC-EB2-FM
SNAP-PAC-EB2-W
G4EB2
Versions
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.

Relevant Downloads
No relevant downloads have been specified.
Questions? Contact Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com

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