18.104.22.168. RSU Image Layout – Your Perspective
The sub-partition table (SPT) is used for managing the allocation of the quad SPI flash.
The Intel® Quartus® Prime Programming File Generator creates the SPT when creating the initial RSU image. To ensure reliable operation, the Programming File Generator creates two copies of the sub-partition table (SPT0 and SPT1) and the configuration pointer block (CPB0 and CPB1).
The initial RSU image stored in flash typically contains the following partitions:
|BOOT_INFO||Decision firmware and decision firmware data|
|SPT0||Sub-partition table 0|
|SPT1||Sub-partition table 1|
|CPB0||Pointer block 0|
|CPB1||Pointer block 1|
|P1||Application image 1|
|P2||Application image 2|
- SPT0 and SPT1 point to everything:
- Factory Image
- Pointer Block 0 and Pointer Block 1
- All Application Images
- Pointer Block 0 and Pointer Block 1 point to all Application Images
- 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.
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