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Memory View

The Memory View lets you inspect and modify any memory region in your target while the debug session is active.

Opening the Memory View

While a debug session is active:

  1. Open the Command Palette (Ctrl+Shift+P / Cmd+Shift+P)
  2. Type Memory and select Debug: Open Memory View

Or click the memory icon in the Variables panel next to a pointer variable.

Entering an Address

Enter any of the following in the address field:

  • Hex address: 0x20000000
  • Symbol name: g_my_buffer
  • GDB expression: &my_struct.field
  • Register: $sp (stack pointer)

Display Formats

The Memory View supports multiple display formats:

FormatUseful For
Hex bytesGeneral memory inspection, protocol buffers
Hex 32-bit wordsRegister dumps, word-aligned data
DecimalNumeric values in readable form
BinaryBit-field inspection
ASCIIString buffers, text data

Writing Values

You can modify memory values directly in the Memory View:

  1. Click on a byte or word
  2. Type the new value
  3. Press Enter to write
caution

Writing to peripheral register addresses has the same effect as the hardware write — it can trigger hardware actions. Be cautious when writing to control registers.

Common Use Cases

  • Stack inspection: enter $sp to view the current stack contents
  • Peripheral registers: enter the peripheral base address to inspect registers not in the SVD file (or before the SVD loads)
  • Buffer contents: enter a buffer pointer to see raw contents during a protocol debug session
  • DMA buffers: monitor DMA source/destination buffers while the target runs (if memory-mapped without cache issues)