Methods and structure for debugging ddr memory of a storage controller

Abstract

Methods and structure for diagnosing errors in the initialization of DDR memory 'on board' a storage controller or a storage expander are presented herein. The features and aspects discussed herein allow for the debugging of the DDR memory initialization. A memory diagnostic system is operable on a storage controller and includes an initialization module in communication with a firmware module of the storage controller. The memory diagnostic system is adapted to initialize a Double Date Rate (DDR) memory of the storage controller. The memory diagnostic system also includes an application programming interface adapted to retrieve initialization information from the initialization module and transfer the initialization information to a debug system via a direct communication link between the application programming interface and the debug system to diagnose the initialization of the DDR memory and to debug the initialization module based on the initialization information.