lcd显示数字程序.c

MSP430系列单片机适用小程序

//                MSP430F449
//            -----------------
//        /|\|              XIN|-  
//         | |                 | 32kHz
//         --|RST          XOUT|-
//           |                 |
//         +-|R33          P5.1|     -----------------
//        1m |              -  |--> | + 7 6 5 4 3 2 1 |
//         +-|R23          P3.2|     -----------------
//        1m |             COM0|-----||||
//         +-|R13          COM1|------|||
//        1m |             COM2|-------||
//         +-|R03          COM3|--------|
//         | |                 |
//        Vss
//
//  M.Buccini
//  Texas Instruments, Inc
//  January 2002
//  Built with IAR Embedded Workbench Version: 1.25A
//*****************************************************************************

#include  <msp430x44x.h>
#define uchar unsigned char
#define uint unsigned int
uchar key_buffer;
uchar key_long;
unsigned char disbuffer[8]={0,1,3,8,0xf,5,0x18,7};
char digit[20] = {1,0,0,0,0,2,1,8
};
char distab[]={        0xaf,0x06,0x6d,0x4f,
	0xc6,0xcb,0xeb,0x0e,
	0xef,0xcf,      0x77,0x7c,
	0x39,0x5e,0x79,0x71
	};
unsigned char seg[]={0x3f,0x06,0x5b,0x4f,
	0x66,0x6d,0x7d,0x07,
	0x7f,0x6f,0x77,0x7c,
	0x39,0x5e,0x79,0x71,
	0xbf,0x86,0xdb,0xcf,
	0xe6,0xed,0xfd,0x87,
	0xff,0xef,0xf7,0xfc,
	0xb9,0xde,0xf9,0xf1,

	0x80,0x40,0x00,0x73,0xc0};



void main(void)
{
   int i;
  WDTCTL = WDTPW + WDTHOLD;             // Stop watchdog timer
  FLL_CTL0 |= XCAP14PF;                 // Configure load caps
//  LCDCTL = LCDON + LCD4MUX + LCDP2;     // STK LCD 4Mux, S0-S17
  LCDCTL = 0XFD;
  BTCTL = BTFRFQ1;                      // STK LCD freq 
  P5SEL = 0xFC;                         // Common and Rxx all selected
  for(i=0;i<20;i++)     
  LCDMEM[i]=0;
  
  for (i=0; i<7; ++i)                   // Display "6543210" 
  LCDMEM[i] = distab[i];//digit[i];
  for (;;)                              
  {
    _BIS_SR(CPUOFF);                    // CPU off
    _NOP();                             // Required only for C-spy
  }
}