Intel ZT 7102 manual Late-BIST, Event Log Area and Event Management

Intel® NetStructureTMZT 7102 Chassis Management Module

Built-In Self Test

6.5Late-BIST

Late-BIST involves disabling the watchdog timer to indicate a successful boot of RedBoot. It will also verify the checksum of the OS image stored in the FIS directory before proceeding with the boot script execution.

Figure 10 shows at which times during the boot cycle the various stages of BIST are performed.

Figure 10. Timing of BIST Stages

HAL initialization (processor, cache, serial port)

Boot-BIST

FPGA

programming

Memory

parameters

initialization

Early-BIST

Module

initialization

(flash, zlib, ide)

Mid-BIST

Module

initialization

(ethernet interface)

Late-BIST

Display copyright

banner, and

execute boot script

Done

6.6Event Log Area and Event Management

Errors detected by the BIST are stored in an event log. The event-log area is designed to have 269 entries. Each entry is 14 bytes. The event-log area is located in EEPROM on the CMM. The BIST can place entries into the event log until it becomes full. Once full, any new entries will be lost. The BIST event log is cleared by the OS once the OS logs any BIST errors into the SEL.

Technical Product Specification 49