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CHAPTER 6
SWO
The electronic asynchronous signal for trace data output or SWV output data which may
be sent by the application on a Cortex-M CPU running in serial wire debug mode. J-Link-
OB-STM32F072-128KB (Cortex-M) is able to receive the data in asynchronous mode when
SWO of the target CPU is connected to the SWOin signal of J-Link-OB-STM32F072-128KB
(Cortex-M). Normally the SWO output signal of a Cortex-M CPU is directed via the TDO
signal pin, but may be separated on some devices.
J-Link-OB-STM32F072-128KB-Cortex-M User Guide
(UM08029)
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