C± ± Compiler

Table 5±1. String Functions

add_string(int *result,int *str1,int *str2,int lg)adds strings str1 and str2, of length lg (+2),

and puts the result in string result

sub_string(int *result,int *str1,int *str2,int lg) subtracts strings str2 from str1, of length lg

(+2), and puts the result in string result.

mul_string(int *result,int *str1,int mult,int lg1,int lgr)multiplies string str1 of length

lg1 (+2) by integer multiple, and puts the result in string result, of length lgr (+2).

umul_string(int *result,int *str1,int mult,int lg1,int lgr) same as previous one, with

UNSIGNED multiply

or_string(int *result,int *str1,int *str2,int lg) ors strings str1 and str2, of length lg (+2), and

puts the result in string result.

and_string(int *result,int *str1,int *str2,int lg) ands strings str1 and str2, of length lg (+2),

and puts the result in string result.

xor_string(int *result,int *str1,int *str2,int lg) exclusive ors strings str1 and str2, of length

lg (+2), and puts the result in string result.

not_string(int *result,int *str1,int lg) takes the 1's complement of string str1, of length lg (+2), and puts the result in strings result.

neg_string(int *result,int *str1,int lg) takes the 2's complement of string str1, of length lg (+2), and puts the result in strings result.

test_string(int *string1,int *string2,int lg,int oper) performs a logical test (operation) on strings string1 and string2 of length lg (+2). The logical value is returned in A0. If string2 is NULL, the logical test is performed between string string1 and a zero string.

operator can take the following values: (predefined constants)

EQS_N == ?

NES_N !== ?

LTS_N < ?

LES_N <= ?

GES_N >= ?

GTS_N > ?

ULTS_N < ? (unsigned)

ULES_N <= ? (unsigned)

UGES_N >= ? (unsigned)

UGTS_N > ? (unsigned)

A major feature of the MSP50P614/MSP50C614 is that the string length present in the string register is the actual length of the string minus two. To avoid confusion, a macro is supplied that automatically translates the real length of the string to the MSP50P614/MSP50C614 length of the string. It is included in the cmm_macr.h file, and is called STR_LENGTH(lstr). For example, STR_LENGTH(8) is 8±2 = 6.

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Texas Instruments MSP50C614 manual ±1. String Functions
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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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