SLAAEF9 November 2023 MSPM0C1104 , MSPM0G3507 , MSPM0L1306
The bootstrap loader (BSL) programming interface is an alternative programming interface to the Arm SWD. This interface offers programming capabilities only, and typically is utilized through a standard embedded communication interface. This allows for firmware updates through existing connections to other embedded devices in system or external ports. Although programming updates is the main purpose of this interface, the BSL programming interface can also be utilized for initial production programming as well.