fet430_oa0_gp.c

msp430开发c语言例程

//******************************************************************************
//   MSP-FET430P430 Demo - OA0 Configured For General-Purpose Mode
//
//   Description; Configure OA0 of the MSP430FG439 for General-Purpose mode
//   //* MSP430FG439 Device Required*//
// 
//                MSP430FG439   
//             -------------------
//         /|\|                XIN|-  
//          | |                   |
//          --|RST            XOUT|-
//            |                   |
//            |      P6.0/A0/OA0I0|<-  +Terminal of OA0
//            |       P6.1/A1/OA0O|->  OA0 Output
//            |      P6.2/A2/OA0I1|<-  -Terminal of OA0
//
//   M.Mitchell
//   Texas Instruments, Inc
//   April 2004
//   Built with IAR Embedded Workbench Version: 2.21B
//******************************************************************************
#include  <msp430xG43x.h>

void main(void)
{
  WDTCTL = WDTPW + WDTHOLD;             // Stop watchdog timer
  OA0CTL0 = OAN_1 + OAPM_1;             // Select inputs, power mode
  OA0CTL1 = OARRIP;                     // Rail-to-rail inputs
  
  LPM3;                                 // LPM3
}