Emerson ATCA-9305 Manuel D’Utilisation

 Monitor Recovery and 

ATCA-9305 User’s Manual

Table 9-2:

Monitor SDRAM usage is typically around 1 MB for monitor code and stack support. Please 
note that the monitor stack grows downward from below where the monitor code resides 
(in the upper 512 KB). The monitor C stack will typically not grow beyond 512 KB, therefore 
the upper 1 MB of SDRAM is reserved for monitor use.

Note:

Caution:

Any writes to these areas can cause unpredictable operation of the monitor.

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 (see 

the “Recovering the Monitor” section).

• If the monitor still functions, but is not operating properly, then you may need to reset 

the environment variables (see the “Resetting Environment Variables” section).

• 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.

0

SDRAM

Verify address and data lines are intact

0

Passed the test

1  Failure detected

1

Flash

 Verify size and initialization of soldered 
flash

2

I

2

C

Verify all local I

2

C devices are connected 

to the I

2

C bus

3

Ethernet Switch

Verify PCI communication with switch

4

Reserved

5

PCIe Time-out 

PCIe enumeration skipped by user

6

DOC Embedded Flash 
Drive (EFD)

Verify presence and ability to access 
configuration space of DOC

7

Cavium 1 Presence

Verify presence and ability to 
communicate via PCI bus with Cavium 1

8

Cavium 2 Presence

Verify presence and ability to 
communicate via PCI bus with Cavium 2

9-31

Reserved

!