DAPLINK and STM32 minimum system combination, one data cable can complete the download and debugging of the program

DAPLINK supports both SWD and virtual serial ports. Using the SWD function,

you can download and debug the program for the smallest system on board with only one data cable,

and it includes an indicator light to display the download status. In terms of the virtual serial port function,

since the serial port uses the smallest system's PA2 and PA3 pins,

in order not to affect the normal use,

the virtual serial port is connected through the two short-circuit caps next to the BOOT to choose whether to use it.

Power supply can use TYPE-C power supply, VIN input (7V-12V), and 5V and 3.3V input power supply.

Multi-power supply is not recommended, which may cause damage.

When program download is required, only type-c power supply can be used .

For the specific power supply part, there are a total of 3 LDO circuits,

including one to 5V and two to 3.3V circuits, one for the minimum system power supply,

one for DAPLINK power supply, when using TYPE-C power supply,

two circuits to 3.3V The V circuit supplies power to the minimum system and LINK at the same time.

When the external power supply VIN is used for power supply, it is first converted to 5V,

and then converted to a 3.3V power supply to the minimum system.

The LINK is not used to prevent the operation of the LINK circuit from affecting the minimum system.