LEVEL 06 / LESSON 08

Linker Script

A linker script maps code and data sections into physical memory regions such as Flash and SRAM and defines symbols used by startup code.

01 / CONCEPT

Linker Script

A linker script maps code and data sections into physical memory regions such as Flash and SRAM and defines symbols used by startup code.

ARCHITECTURE

Identify the block, clock/source dependencies, data path and interfaces.

CONFIGURE

Follow the target reference manual and change only documented fields.

VERIFY

Define the expected register state, timing or signal before running the test.

DEBUG

Inspect software state and measure hardware behavior rather than guessing.

02 / ENGINEERING WORKFLOW

From manual to measurement

  1. Read the architecture/reference-manual section.
  2. Identify clocks, pins, memory, interrupts and dependencies.
  3. Calculate required timing or configuration values.
  4. Implement the smallest working configuration.
  5. Build with warnings enabled and flash the target.
  6. Inspect registers and measure the external behavior.
  7. Document failures, assumptions and the final fix.
KEY TAKEAWAY

A linker script maps code and data sections into physical memory regions such as Flash and SRAM and defines symbols used by startup code.