Memory Partitioner

Memory Management

• Replaces malloc() and free()
• malloc and free has some drawbacks, especially in embedded devices.
  • Increased code size
  • Now determistic behavior
  • Fragmentation problems, small block of data scattered in memory prevent allocation of large blocks.
• uCos provides a partion memory allocator.
  • No fragmentation problem
  • Runs at a constant time
  • Are deterministic

Memory Control Blocks

• Manages a memory partion
• Number of blcoks is set by OS_MAX_MEM_PART in os_cfg.h
• Held in the OSMemFreeList until used.

Using Memory Partions

• Manage a memory partion
• Number of blocks is set by OS_MAX_MEM_PART in os_cfg.h
• Held in the OSMemFreeList until used.