SLAAEI9 December 2023 MSPM0C1103 , MSPM0C1103-Q1 , MSPM0C1104 , MSPM0C1104-Q1 , MSPM0G1105 , MSPM0G1106 , MSPM0G1107 , MSPM0G1505 , MSPM0G1506 , MSPM0G1507 , MSPM0G3105 , MSPM0G3105-Q1 , MSPM0G3106 , MSPM0G3106-Q1 , MSPM0G3107 , MSPM0G3107-Q1 , MSPM0G3505 , MSPM0G3505-Q1 , MSPM0G3506 , MSPM0G3506-Q1 , MSPM0G3507 , MSPM0G3507-Q1 , MSPM0L1105 , MSPM0L1106 , MSPM0L1228
The Arm SWD 2-wire JTAG port is the main debug and programming interface for MSPM0 devices. This interface is typically used during application development, and during production programming.
Unlike MSPM0 devices, STM8 devices do not have SWD 2-wire JTAG port. The single wire hardware interface (SWIM) featuring ultrafast memory programming is the main debug and programming interface for STM8 devices. SWIM pin can be used as a standard I/O with some restrictions if you also want to use the SWIM pin for debug. The most secure way is to provide on the PCB a strap option.