Instructions for use:

The factory default of the development board is Daplink firmware. The firmware supports debugging and downloading functions and supports U disk mode burning and a virtual serial port.

The pin correspondence is as follows:

• PB13: SWD_CLK
• PB14: SWD_DIO
• PB0: RST reset
• PA2: TX of virtual serial port
• PA3: RX of virtual serial port

The middle green light indicates communication with the connected device. After plugging into the computer, a U disk named daplink, a COM port, and a portable device named daplink will be displayed. In Keil or other development software, select the debugger as CMSIS DAP.

The currently supported development environments are as follows:

• KEIL MDK
• IAR
• PyOCD
• Other software supporting CMSIS-DAP protocol