•
You do not need to know the addresses of the decision firmware, decision firmware data, and factory image.
•
You have access to the sub-partition tables. The sub-partition tables provide access to the data structures required for
remote system update.
5.4.2. Detailed Quad SPI Flash Layout
5.4.2.1. RSU Image Sub-Partitions Layout
The RSU Image Sub-Partitions Layout table shows the layout of RSU image stored in QSPI flash.
If you anticipate changes to the factory or application images, you may consider reserving additional memory space. By
default, the Intel Quartus Prime Programming File Generator reserves additional 256 kB of memory space for a factory image.
To increase the partition size, update the End Address value in the Edit Partition dialog box window as described in the
Generating the Initial RSU Image.
Table 46.
RSU Image Sub-Partitions Layout
Flash Offset
Size (in bytes)
Contents
Sub-Partition Name
0 K
512 K
Decision firmware
BOOT_INFO
512 K
512 K
Decision firmware
1 M
512 K
Decision firmware
1.5 M
512 K
Decision firmware
2 M
8 K + 24 K pad
Decision firmware data
2 M+32 K
32 K
Reserved for SDM
2 M+64 K
Varies
Factory image
FACTORY_IMAGE
Next
4 K + 28 K pad
Sub-partition table (copy 0)
SPT0
Next
4 K + 28 K pad
Sub-partition table (copy 1)
SPT1
Next
4 K + 28 K pad
Pointer block (copy 0)
CPB0
Next
4 K + 28 K pad
Pointer block (copy 1)
CPB1
Next
Varies
Application image 1
You assign
Next
Varies
Application image 2
You assign
5. Remote System Update (RSU)
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