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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--
+;*******************************************************************************
+;   MSP430F20x2 Demo - ADC10, DTC Sample A0 -> TA1, AVcc, DCO
+;
+;   Description: Use DTC to sample A0 with reference to AVcc and directly
+;   transfer code to CCR1. Timer_A has been configured for 10-bit PWM mode.
+;   CCR1 duty cycle is automatically proportional to ADC10 A0. WDT_ISR used
+;   as a period wakeup timer approximately 45ms based on default ~1.2MHz
+;   DCO/SMCLK clock source used in this example for the WDT clock source.
+;   Timer_A also uses default DCO.
+;
+;                MSP430F20x2
+;             -----------------
+;         /|\|              XIN|-
+;          | |                 |
+;          --|RST          XOUT|-
+;            |                 |
+;        >---|P1.0/A0      P1.2|--> TACCR1 - 0-1024 PWM
+;
+;   P.Thanigai
+;   Texas Instruments Inc.
+;   May 2007
+;   Built with Code Composer Essentials Version: 2.0
+;*******************************************************************************
+ .cdecls C,LIST,  "msp430.h"
+;-------------------------------------------------------------------------------
+            .def    RESET                   ; Export program entry-point to
+                                            ; make it known to linker.
+
+;------------------------------------------------------------------------------
+            .text                           ; Progam Start
+;------------------------------------------------------------------------------
+RESET       mov.w   #0280h,SP               ; Initialize stackpointer
+SetupWDT    mov.w   #WDT_MDLY_32,&WDTCTL    ; WDT ~45ms interval timer
+            bis.b   #WDTIE,&IE1             ; Enable WDT interrupt
+SetupADC10  mov.w   #ADC10SHT_2+ADC10ON,&ADC10CTL0 ;
+            bis.b   #01h,&ADC10AE0          ; P1.0 ADC option select
+            mov.b   #001h,&ADC10DTC1        ; 1 conversion
+SetupP1     bis.b   #004h,&P1DIR            ; P1.2 = output
+            bis.b   #004h,&P1SEL            ; P1.2 = TA1 output
+SetupC0     mov.w   #1024-1,&TACCR0         ; PWM Period
+SetupC1     mov.w   #OUTMOD_7,&TACCTL1      ; TACCR1 reset/set
+            mov.w   #512,&TACCR1            ; TACCR1 PWM Duty Cycle
+SetupTA     mov.w   #TASSEL_2+MC_1,&TACTL   ; SMCLK, upmode
+                                            ;
+Mainloop    bis.b   #CPUOFF+GIE,SR          ; LPM0, WDT_ISR will force exit
+            mov.w   #TACCR1,&ADC10SA        ; Data transfer location
+            bis.w   #ENC+ADC10SC,&ADC10CTL0 ; Start sampling
+            jmp     Mainloop                ; Again
+                                            ;
+;-------------------------------------------------------------------------------
+WDT_ISR;    Exit LPM0 mode, reti returns system active
+;-------------------------------------------------------------------------------
+            bic.w   #CPUOFF,0(SP)           ; Exit LPM0 on reti
+            reti                            ;
+                                            ;
+;------------------------------------------------------------------------------
+;           Interrupt Vectors
+;------------------------------------------------------------------------------
+            .sect   ".reset"                ; MSP430 RESET Vector
+            .short  RESET                   ;
+            .sect   ".int10"                ; WDT Vector
+            .short  WDT_ISR                 ;
+            .end