MoMo Flash Memory Map

Introduction

Each MoMo controller unit comes with 1MB of external serial flash. This memory is used for multiple purposes:

• Storing firmware images for reflashing MIB modules
• Storing a backup firmware image for the controller itself
• Accumulating sensor data between transmissions

This document describes how the memory is partitioned between these 3 tasks.

Memory Map

The memory is divided as follows:

• 64K for storing system configuration information
• 64K for storing 4 16K (max) firmware images
• 64K for storing 1 64K (max) controller backup image
• 64K of reserved space for future purposes
• 768K for the sensor data log

System Configuration Data

The system configuration region is further subdivided into the following sections. (TBD as the sections get filled up)

• 4K for missioning and sensor configuration
• 4K for storing information about the firmware images
• 56K currently unused