ABSTRACT
A small monitor program for the MSP430F1xx and MSP430F4xx microcontrollers that
incorporate at least one integrated USART provides a facility for examining the device
memory and updating the flash contents with new application code via a universal
synchronous/asynchronous receive/transmit (USART) peripheral interface. A personal
computer (PC) and a terminal emulation package are all that is required to access the
device memory. The monitor allows field updates of system firmware without the need
to provide access to the JTAG signals or to the GPIO pins used by the bootstrap loader
(BSL).
