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ddr

Initialize the chip's DDR controller so that external memory becomes usable.

Usage​

xfel ddr [type]

Arguments​

ArgumentDescription
[type]Optional DDR configuration type name. Different chips support different types, see the DDR types reference

Description​

When entering FEL mode, the DDR controller is not yet initialized and memory is unavailable. After running this command, XFEL configures the DDR controller based on the chip model (and optional type), after which write, exec and other memory commands can be used.

If type is omitted, the chip's default DDR configuration is used. When a chip has multiple memory configurations, a specific type must be provided.

Examples​

Initialize DDR with the default configuration:

xfel ddr

Specify the DDR type for F133:

xfel ddr f133

Specify the model for R528:

xfel ddr r528-s3

On failure:

Failed to initial ddr controller

See the DDR types reference for the full list.