STM32F2

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This article describes device specifics of the ST STM32F2 series devices.

Debugging with software watchdog enabled

If the device shall be debugged with one of the software watchdogs (independed watchdog / window watchdog) enabled, there is an additional init step necessary to make the watchdog counter stop when the CPU is halted by the debugger. This is configured in the DBGMCU_CR register. The following sequence can be used to enable debugging with software watchdogs enabled:

//
// Configure both watchdog timers to be halted if the CPU is halted by the debugger
//
*((volatile int *)(0xE0042004)) |= (1 << 8) | (1 << 9);