17.5 Firmware Images and SD-Card Partitions

All components of the SP-ICE-3 Card's Firmware reside on the SD-Card, which itself is divided into several partitions to allow preservation of user-data across firmware updates, and to ensure that the update mechanism is (reasonably) fail-safe.

SD-Card Partitions

The SD-Card is formatted with eight partitions:

Partition Number	Partition Name	Partition Contents	Partition Size
1	UBOOT	The U-Boot executable and script, responsible for loading and starting the system images. House-keeping files for the Update Mechanism.	128M
2	SPL	The bootstrapper, responsible for starting U-Boot.	8M
3	RECOVERY	Recovery Image: sufficient for communications and updates, but omitting any SP-ICE-3 Card firmware functionality. See: 17.8.2 Boot Failure Fallback Mechanism.	2G
4	Extended	Container for the following partitions:	N/A
5	SYS1	The current or previous main system image, with all SP-ICE-3 Card firmware functionality. See: 17.8.1 Fail-Safe Update Mechanism.	2G
6	SYS2	The previous or current main system image, with all SP-ICE-3 Card firmware functionality. See: 17.8.1 Fail-Safe Update Mechanism.	2G
7	UPDATE	Storage for incoming update packages. See: 17.8.1 Fail-Safe Update Mechanism.	2G
8	DATA	Storage for user-data. Command lists, configuration files, custom programs, etc.	20G