How do I avoid dynamic allocation in embedded systems?

In embedded systems, dynamic memory allocation can lead to fragmentation, unpredictable behavior, and increased overhead, which are undesirable for performance and reliability. To avoid dynamic allocation, you can use static or stack memory management techniques. Here are some effective methods:

• Static Allocation: Allocate memory statically at compile time instead of dynamically at runtime. This is useful for fixed-size arrays or structures.
• Stack Allocation: Use local variables within functions that are automatically allocated on the stack and deallocated once the function returns.
• Memory Pooling: Create a fixed-size pool of memory that can be preallocated for various objects, reducing the need for dynamic allocation.
• Fixed-size Data Structures: Use data structures with a predetermined size to avoid the overhead associated with resizing or reallocation.
• Embedded Libraries: Utilize libraries designed for resource-constrained environments, which often have built-in strategies to manage memory efficiently.