Internal Memory Mapping - Caen ELS LiAM 6005 User Manual

LiAM Description

3.2 Internal Memory Mapping

Each LiAM power supply module has an on-board EEPROM memory that
stores all information about calibration parameters, module identification, thresholds,
interlock configuration, etc.
Some of these fields can be user-defined and are extremely useful in order to
exactly fit the power supply to the specific application.
EEPROM memory size is 256Kbits and is divided into two main different
sections, each one consisting of 128Kbits. One of these two sections is not used in the
LiAM power supply series (it is used in other power units by CAENels). The only
section used is the following:
 VALUE section.
This structure can be seen in
The EEPROM cell size is 0x20 bytes – i.e. 32 bytes – and, being the content
stored in ASCII string format, the total string can contain 31 bytes + '\r' termination
character (mandatory to correctly read and store the content).
Some EEPROM cells are password protected and can be unlocked using the
'PASSWORD' command (these cells are only accessible by experienced CAENels
personnel).
The EEPROM "value" structure and the cell content description are presented
in :
Table 4
.
Figure 23
Byte
VALUE
address
0x4000 →
0x4020 →
0x41FF →
Figure 23: EEPROM memory structure
LiAM User's Manual
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