Intel netstructure mpcbl0001 用户手册

下载
页码 198
Technical Product Specification
47
Order #273817
Intel NetStructure
®
 MPCBL0001 High Performance Single Board Computer
Contents 
When the firmware is commanded to enter firmware (FW) update mode, the operational code uses 
a special branch, Software Interrupt, to jump to the FW update code in the boot block. Once in FW 
update mode, the update code is copied into RAM, then the firmware jumps to the code in RAM to 
execute. The FW update code cannot execute out of flash while the flash is being updated.
3.6
IPMC Firmware Upgrade Procedure
MPCBL0001 firmware is upgraded using either of two methods, the KCS interface or the IPMB 
(RMCP) interface.
3.6.1
IPMC Firmware Upgrade Using KCS Interface
The KCS interface is the communication mechanism between the host processor on the 
MPCBL0001 and the IPMC controller. A firmware update utility is available. It takes a hex file to 
be updated as input from the command line. It can also verify that updates are completed 
successfully by reading back data written to the flash memory. Typically, it takes the utility around 
two minutes to complete the update over the KCS interface. After the firmware update is 
Figure 4. 
IPMC Firmware Code Process
 
 
No
No
 
   
 
 !  
 
IPMC Boot Block
Main  IPMC Code
RAM
 !
"#
"#
"
 !
$ "