



Monitor: Monitor Recovery and Updates
















POST Diagnostic Results
The PmPPC7448
Table
Bit: | Diagnostic Test: | Value: | ||
0 | SDRAM |
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1 | Flash |
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2 | I2C | 0 | Passed the test | |
3 | Reserved | |||
1 | Failure detected | |||
4 | Reserved | |||
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5 | No EREADY |
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6 through 31 | Reserved |
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Monitor SDRAM Usage
Caution: Any writes to these areas can cause unpredictable operation of the monitor.
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MONITOR RECOVERY AND UPDATES
This section describes how to recover and/or update the monitor, given one or more of the following conditions:
•If there is no console output, the monitor may be corrupted and need recovering (“Recovering the Monitor” on page
•If the monitor still functions, but is not operating properly, then you may need to reset the environment variables (“Resetting Environment Variables” on page
•If you are having Ethernet problems in the monitor, you may need to set the serial number, since the MAC address is calculated from the serial number variable.
Recovering the Monitor
First, make sure that a monitor ROM device is installed in the PLCC socket of the DMC mod- ule and the DMC module is installed on the PmPPC7448. Then, place a jumper on JP2, across pins 3 and 4 on the DMC.
PmPPC7448 User’s Manual |