//-----------------------------------------------------------------------------
// Includes
//-----------------------------------------------------------------------------
#include <c8051f000.h> // SFR declarations
#include <stdio.h>
//-----------------------------------------------------------------------------
// 16-bit SFR Definitions for ’F00x
//-----------------------------------------------------------------------------
sfr16 DP = 0x82; // data pointer
sfr16 TMR3RL = 0x92; // Timer3 reload value
sfr16 TMR3 = 0x94; // Timer3 counter
sfr16 ADC0 = 0xbe; // ADC0 data
sfr16 ADC0GT = 0xc4; // ADC0 greater than window
sfr16 ADC0LT = 0xc6; // ADC0 less than window
sfr16 RCAP2 = 0xca; // Timer2 capture/reload
sfr16 T2 = 0xCC; // Timer2
sfr16 DAC0 = 0xd2; // DAC0 data
sfr16 DAC1 = 0xd5; // DAC1 data
//-----------------------------------------------------------------------------
// Function PROTOTYPES
//-----------------------------------------------------------------------------
void SYSCLK_Init (void);
//-----------------------------------------------------------------------------
// MAIN Routine
//-----------------------------------------------------------------------------
void main (void){
WDTCN = 0xde; // dISAble watchdog timer
WDTCN = 0xad;
SYSCLK_Init (); // initialize oscillator
REF0CN = 0x03; // Reference Control Register
//----------------------------------------------------------------------------
// DAC Configuration
//----------------------------------------------------------------------------
DAC0CN = 0x80; // DAC0 Control Register
DAC1CN = 0x80; // DAC1 Control Register
while(1)
{
DAC0L = 0xAB; // DAC0 Low Byte Register
DAC0H = 0x0C; // DAC0 High Byte Register
DAC1L = 0xAB; // DAC1 Low Byte Register
DAC1H = 0x0C; // DAC1 High Byte Register
}
}
//-----------------------------------------------------------------------------
// Initialization Subroutines
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Oscillator Configuration
//-----------------------------------------------------------------------------
void SYSCLK_Init (void)
{
int i; // delay counter
OSCXCN = 0x67; // start external oscillator with
// 18.432MHz Crystal
for (i=0; i < 256; i++) ; // XTLVLD blanking interval (>1ms)
while (!(OSCXCN & 0x80)) ; // Wait for crystal osc. to settle
OSCICN = 0x88; // select external oscillator as SYSCLK
// source and enable missing cLOCk
// detector
本文关键字：程序 51单片机，单片机-工控设备 - 51单片机
