Does STLINK have an SWD interface
The ST-LINK is an in-circuit debugger and programmer for the STM8 and STM32 microcontroller families. The first version of the protocol (v1) only allows a point-to-point communication through a two-wire connection between the host and the device to debug. Usually you can use the 3Volt or 5V leads but you may have to power your board from USB. SWCLK:Serial Wire Clock, serial line clock pin, as the clock signal line of the simulation signal, it is recommended to pull down; SWO: Serial data output pin,CPUThe debugging interface can be passedSWOThe pin outputs some debugging information.
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