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This chapter describes the debug modes of µVision and the user interface for testing applications.

Two debugging modes can be selected and configured in the dialog Options for Target — Debug:

  • Use Simulator, configures the µVision Debugger as software-only product that simulates most features of a microcontroller. Developers can test and debug embedded applications before the hardware is ready. µVision simulates a wide variety of peripherals, including serial ports, external I/Os, and timers. Peripheral simulation capabilities vary depending on the device selected.
  • Use Target Debugger, like the ULINK ARM Debugger, links µVision to a debugger adapter, which interfaces the target system. The following debug devices are supported:
    • JTAG/SW/OCDS Adapter: which connects to on-chip debugging systems like the ARM Embedded ICE.
    • Monitor: which can be integrated with user hardware or is available on many evaluation boards.
    • Emulator: which connects to the MCU pins of the target hardware.
    • In-System Debugger: which is part of the user application program and provides basic test functions.

Third-party tool developers can use the Keil Advanced GDI to interface µVision to their own hardware debuggers.

This chapter includes the sections:

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