Software architecture
18/70
2.2.2.3
Use case C: Full featured loadable firmware
The COM LFW is a "full featured" Real-Time Ethernet protocol firmware
including an extended web server. It uses SDRAM and external SQI Flash
and works with a fail-safe flash file system in the SQI Flash.
Therefore handling of multiple files/configurations and functions on
embedded systems as well as working with Hilscher tools like
Communication Studio
are possible.
·
*.nxi
communication firmware file size is limited to ≤ 880 KByte and
located in INTFLASH01.
·
Firmware update area is located in the HCC Flash File System of the
external SQI Flash (and does therefore not need to be defined in the
FDL). New firmware will be installed with the help of the maintenance
firmware.
·
APP CPU has no access to external SQI Flash, because it is used
exclusively by the COM CPU
·
External SDRAM is equally shared by both COM CPU and APP CPU
(as defined in hardware configuration)
Figure 5: Use case C: Full featured loadable firmware with SDRAM and external SQI flash
netX 90 | Production guide
DOC190101PG03EN | Revision 3 | English | 2019-07 | Released | Public
© Hilscher 2019
