main.c

MSP430有许多寄存器来设定程序的频率和周期

//P5口连接数码管加1计数，与P4四口相连的数码管显示8
#include "msp430.h"

int main( void )
{
  
  int i,x;
  unsigned char seg[10]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
                  //数码管显示字符码
  // Stop watchdog timer to prevent time out reset
  WDTCTL = WDTPW + WDTHOLD;
 P4DIR=0XFF;//共阳极数码管
 P5DIR=0XFF;
 P4OUT=seg[8];
 P5OUT=seg[0];
 
 
while (1)
 {
  for(i=0;i<=9;i++)
    for(x=0;x<20000;x++)
      P5OUT=seg[i];

 }
}