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MVME5100 Single Board Computer Programmer's Reference Guide

MVME5100 Single Board Computer Programmer's Reference Guide

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Vital Product Data (VPD) Introduction<br />

What Happens if the VPD Information is Corrupted?<br />

If for some reason, the VPD information becomes corrupted, the following<br />

occurs:<br />

❏ A warning is displayed in the startup banner<br />

❏ The firmware ignores the VPD contents and attempts to acquire<br />

information from other sources<br />

❏ Some device drivers will not work<br />

❏ Some diagnostic tests fail<br />

❏ The board runs much slower than usual<br />

How to Fix Corrupted VPD Information<br />

❏ The firmware is designed to reach the prompt with bad VPD<br />

❏ Use the srom, ibm, or update command to fix the VPD<br />

What if Your <strong>Board</strong> Has the Wrong VPD?<br />

If for some reason your board has the wrong VPD information, the<br />

following occurs:<br />

❏ No warning is displayed<br />

❏ The firmware believes the incorrect VPD information<br />

❏ The board may hang during startup (no-start condition)<br />

❏ The board may be very unstable if it reaches the prompt<br />

❏ Device drivers, diagnostic tests, and firmware commands may hang<br />

or fail in unexpected ways<br />

How to Fix Wrong VPD Problems<br />

If you suspect that your board has problems as a result of wrong VPD<br />

information, perform the following:<br />

http://www.motorola.com/computer/literature B-3<br />

B

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