Texas Instruments C614 Synthesis Code

6.3 Texas Instruments C614 Synthesis Code

Some sample codes are supplied with the development tools. These samples are in the .\Examples subdirectory where the tool is installed. In this manual only one example code is explained. This description applies to all the code development. The following example assumes that you have the MSP scanport interface connected to the parallel port of your PC, and TI speech code development unit connected to the MSP Scanport interface. You should have the MSP50C6xx code development tool already installed on the system before attempting to continue with this example.

Overview

This example code demonstrates MELP running at 2400 bps. It shows how to use the timer interrupts to scan a keyboard and flash LEDs while speaking. Activation of the sleep modes is also illustrated.

Getting Started

Connect the MSP scanport (the small grey metal box) to the PC and to the speech development board. Ensure that the scanport and the development board are powered on (the red LED and the green LED on the MSP Scanport are both illuminated) before attempting to start the code development tool.

Click on Start menu, go to Programs ± EMUC6xx and click on MSP50C6xx development tool menu item. To open a project click on Project ± New Project and select the desired project file. e.g.,

C:\614\PROJECTS\MELP1\MELP1.RPJ.

Click on Project ± Build to assemble and link the constituent files of the project. Then click Debug ± Eprom Programming and select Blank Check + Program to burn the code onto a P614 device. Alternatively, press F3 then ENTER.

Set the breakpoint at the _main label. To do this click on the blue magnifying glass icon at the top of the screen, then from the Symbol list choose _main. Click OK and the Program Window will display the label and the surrounding code. The line of code at _main ± MOV R7,STACK ± is highlighted in cyan. Set the breakpoint by moving the mouse to this line, holding the SHIFT key and clicking the right mouse button.

Click on Init ± Init All to reset the P614. All the values in the RAM window should turn blue and should be zero (0000).

To run the program, click on the yellow lightning/black centipede (Run Internal) icon at the end of the tool bar. The program should halt at the _main label. All the values in the CPU window should be blue and zero apart from PC, STAT, DP, RZF and ZF.

6-8

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.

Texas Instruments MSP50C614 Texas Instruments C614 Synthesis Code, Overview, Getting Started

Models: MSP50C614