RM0008 Debug support (DBG)
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26 Debug support (DBG)
Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx
microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes.
Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx
microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes.
High-density devices are STM32F101xx and STM32F103xx microcontrollers where the
Flash memory density ranges between 256 and 512 Kbytes.
This Section applies to the whole STM32F10xxx family, unless otherwise specified.
26.1 Overview
The STM32F10xxx is built around a Cortex-M3 core which contains hardware extensions for
advanced debugging features. The debug extensions allow the core to be stopped either on
a given instruction fetch (breakpoint) or data access (watchpoint). When stopped, the core’s
internal state and the system’s external state may be examined. Once examination is
complete, the core and the system may be restored and program execution resumed.
The debug features are used by the debugger host when connecting to and debugging the
STM32F10xxx MCU.
Two interfaces for debug are available:
● Serial wire
● JTAG debug port
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