MSP430 Flash Device Bootloader (BSL)

This document serves as a comprehensive user's guide for the Texas Instruments MSP430 Flash Device Bootloader (BSL). The BSL is a critical utility that enables communication with MSP430 microcontrollers (MCUs) for programming flash memory and data memory during development, production, and service phases.

It details various methods for invoking the bootloader, including specific reset and pin sequences for different MSP430 device families. The guide covers the communication protocols used, such as UART, USB, and I2C, outlining their specific formats, commands, and data structures.

Key Features and Protocols

• Functionality: Facilitates programming, data exchange, and memory modification for MSP430 MCUs.
• Security: Includes password protection for sensitive commands to prevent unauthorized access.
• Protocols: Explains the UART protocol (9600 baud, half-duplex), USB HID protocol, and I2C interface specifics.
• Hardware Interface: Describes the necessary hardware for connecting to the MSP430 via a serial port, including level shifting and pin assignments.
• Device Variations: Highlights differences in BSL features, commands, and resources across various MSP430 device families and BSL versions.

Getting Started

Users can learn how to initiate a BSL session, send commands, and manage data transfers. The document also provides insights into BSL internal settings, memory allocation, and potential issues or workarounds for different device models.