blackmagic-debug / blackmagic

In application debugger for ARM Cortex microcontrollers.

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Ramp tPWR using PWM

esden opened this issue · comments

Problem: In some cases the Black Magic Probe can experience a brownout when enabling tPWR with a target connected. The fast transient can drag the voltage regulator down enough to reset the microcontroller.

Solution: Implement PWM ramp on the tPWR enable pin to mitigate the sharp transient.