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/* --COPYRIGHT--,BSD_EX * Copyright (c) 2012, Texas Instruments Incorporated * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * * Neither the name of Texas Instruments Incorporated nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ******************************************************************************* * * MSP430 CODE EXAMPLE DISCLAIMER * * MSP430 code examples are self-contained low-level programs that typically * demonstrate a single peripheral function or device feature in a highly * concise manner. For this the code may rely on the device's power-on default * register values and settings such as the clock configuration and care must * be taken when combining code from several examples to avoid potential side * effects. Also see www.ti.com/grace for a GUI- and www.ti.com/msp430ware * for an API functional library-approach to peripheral configuration. * * --/COPYRIGHT--*/ //****************************************************************************** // MSP430G2xx3 Demo - USCI_B0 I2C Master Interface to DAC8571, Write // // Description: Using UCB0TXIE, a continuous sine wave is output to the // external DAC using a 16-point look-up table. Only one start condition // is executed. Data is handled by the ISR and the CPU is normally in LPM0. // ACLK = n/a, MCLK = SMCLK = BRCLK = default DCO = ~1.2MHz // // MSP430G2xx3 DAC8571 // ------------------ ------------ // -|XIN P1.7/UCB0SDA|<--------------->|SDA | // | P1.6/UCB0SCL|---------------->|SCL I2C | // -|XOUT | | SLAVE | // | I2C MASTER | GND|A0 | // // // DAC8571 I2C address = 0x4C (A0 = GND) // // D. Dang // Texas Instruments Inc. // February 2011 // Built with CCS Version 4.2.0 and IAR Embedded Workbench Version: 5.10 //****************************************************************************** #include <msp430.h>
const unsigned char Sine_Tab[] = // 16 Point 16-bit Sine Table { 0xFF, // MSB Word 0 0xFF, // LSB 0xF6, // MSB Word 1 0x40, // LSB 0xDA, // MSB Word 2 0x81, // LSB 0xB0, // MSB Word 3 0xFA, // LSB 0x7F, // MSB Word 4 0xFF, // LSB 0x4F, // MSB Word 5 0x03, // LSB 0x25, // MSB Word 6 0x7C, // LSB 0x09, // MSB Word 7 0xBD, // LSB 0x00, // MSB Word 8 0x00, // LSB 0x09, // MSB Word 9 0xBD, // LSB 0x25, // MSB Word 10 0x7C, // LSB 0x4F, // MSB Word 11 0x03, // LSB 0x7F, // MSB Word 12 0xFE, // LSB 0xB0, // MSB Word 13 0xFA, // LSB 0xDA, // MSB Word 14 0x81, // LSB 0xF6, // MSB Word 15 0x40 // LSB };
