Linker

should be declared there as EXTERNAL (or REF). Note that this technique can also be used to make constants defined with the EQU statement available to other files.

INCLUDE filename: This directive is used to insert another file in the current assembly file. The name of the file to be included must be enclosed in double quotes. If the file name itself is enclosed in angled brackets (<>), then the assembler will first look for the include file in the include directory list that is passed as an argument during the DLL call.

LIST: The lines following this directive are included in the listing file (extension

.lst) created by the assembler.

REF symbol[,symbol]: Equivalent to EXTERNAL directive

label RESB expression: This directive is used to reserve the number of bytes indicated by expression, starting at the current RAM address. Label is given the value of the current RAM address.

label RESW expression: This directive is used to reserve the number of words indicated by expression, starting at the current RAM address. label is given the value of the current RAM address. If the current RAM address is not EVEN, the assembler increments it by 1 before allocating the desired amount. (Note that RAM locations are accessed by their BYTE address in MSP50P614/ MSP50C614 assembly language, i.e., word 1 is at address 2, etc...)

RORG expression: Marks the start of a RELATIVE segment code, i.e., a segment that can be relocated by the linker, expression is an arbitrary number, but it must be present or an assembly error will occur.

STRING text_string: Equivalent to the TEXT directive, but the text is terminated by a 0. (automatically done by the assembler)

TEXT text_string: Equivalent to the BYTE directive, but the data are a text string enclosed in double quotes.

UNLIST: The lines following this directive are NOT included in the listing file (extension .lst) created by the assembler.

5.8 Linker

The MSP50P614/MSP50C614 linker is implemented as a Windows dynamic linked library (DLL). The current name of the DLL file is link6xx.dll. It can be invoked from any Windows program, provided that the user included the file called link6xx.lib in the Windows project.

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MSP50C614 specifications

The Texas Instruments MSP50C614 is a microcontroller that belongs to the MSP430 family, renowned for its low power consumption and versatile functionality. Primarily designed for embedded applications, this microcontroller is favored in various industries, including consumer electronics, industrial automation, and healthcare devices.

One of the standout features of the MSP50C614 is its ultra-low power technology, which enables it to operate in various power modes. This makes it ideal for battery-powered applications, where energy efficiency is crucial. The MSP430 architecture allows for a flexible power management system, ensuring that energy is conserved while providing robust performance.

The MSP50C614 is equipped with a 16-bit RISC CPU that delivers high performance while maintaining low power usage. With a maximum clock frequency of 16 MHz, it can execute most instructions in a single cycle, resulting in swift operation and responsive performance. This microcontroller also comes with a generous flash memory capacity, allowing developers to store large amounts of code and data conveniently.

In terms of peripherals, the MSP50C614 is highly versatile. It features a range of digital and analog input/output options, including multiple timers, GPIO ports, and various communication interfaces like UART, SPI, and I2C. This extensive set of peripherals allows for seamless integration with other components and simplifies the design of complex systems.

The integrated 12-bit Analog-to-Digital Converter (ADC) stands out as a valuable characteristic of the MSP50C614. This feature enables the microcontroller to convert physical analog signals into digital data, making it particularly useful for sensing applications and real-time monitoring.

Another noteworthy technology employed in the MSP50C614 is its support for low-voltage operations. With a broad supply voltage range, this microcontroller can function efficiently in diverse environments and is suitable for low-power applications, enhancing its practicality.

Moreover, Texas Instruments provides software support in the form of Code Composer Studio and various libraries that make it easier for developers to program and utilize the MSP50C614 effectively.

In summary, the Texas Instruments MSP50C614 microcontroller is a powerful, low-power solution equipped with the features and technologies necessary for efficient operation in a wide array of applications. Its blend of performance, flexibility, and energy efficiency makes it a popular choice among engineers and designers looking to create innovative, sustainable designs in the rapidly evolving tech landscape.
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