kanmen.c

单片机控制max261/max260/max262的C语言程序

//	3. AT89C2051和X25045的初始化程序：
#include <REG51.H>    /* special function register declarations   */
 /* for the intended AT89C2051 derivative         */
#include <stdio.h>   /* prototype declarations for I/O functions */
#ifdef MONITOR51      // Debugging with Monitor-51 needs
char code reserve [3] _at_ 0x23;  // space for serial interrupt if
#endif                          // Stop Exection with Serial Intr.
sbit P1_1=P1^1;            /* SI connect to P1^1 */
sbit P3_4=P3^4;             /* SCK connect to P3^4 */
sbit P3_5=P3^5;                 //when running this program, /WP is high
void timer0 (void) interrupt 1 using 2          //define timer0 interrupt
{    P3_4=!P3_4;}
void timer1 (void) interrupt 3  using 2      //define timer1 interrupt
{do{}while(P3_4!=0||!TF0);
P1_1=0;
do{}while(P3_4!=0||!TF0);
P1_1=0;
do{}while(P3_4!=0||!TF0);
P1_1=0;
do{}while(P3_4!=0||!TF0);
P1_1=0;
do{}while(P3_4!=0||!TF0);
P1_1=0;
do{}while(P3_4!=0||!TF0);
P1_1=1;
do{}while(P3_4!=0||!TF0);
P1_1=1;
do{}while(P3_4!=0||!TF0);
P1_1=0;                         //WREN instruciton:00000110B
do{}while(P3_4!=0||!TF0);
P1_1=0;
do{}while(P3_4!=0||!TF0);
P1_1=0;
do{}while(P3_4!=0||!TF0);
P1_1=0;
do{}while(P3_4!=0||!TF0);
P1_1=0;
do{}while(P3_4!=0||!TF0);
P1_1=0;
do{}while(P3_4!=0||!TF0);
P1_1=0;
do{}while(P3_4!=0||!TF0);
P1_1=1;
do{}while(P3_4!=0||!TF0);
P1_1=0;                      //Write instruction:00000010B

do{}while(P3_4!=0||!TF0);
P1_1=0;
do{}while(P3_4!=0||!TF0);
P1_1=0;
do{}while(P3_4!=0||!TF0);
P1_1=1;
do{}while(P3_4!=0||!TF0);
P1_1=0;
do{}while(P3_4!=0||!TF0);
P1_1=0;
do{}while(P3_4!=0||!TF0);
P1_1=0;
do{}while(P3_4!=0||!TF0);
P1_1=1;
do{}while(P3_4!=0||!TF0);
P1_1=1; 
//WD1=1,WD0=0,RESET time is 200ms, BL1=0,BL0=0,no block
//protect,STATUS_REG:00100000B
}
void main (void) {
	P3_5=0;                                 // enable /CS
/* setup the timer 0 interrupt */
  TH0 = 0xFF;              // set timer period; t is 10 us; set the frequency of sclk is 50khz
  TL0 = 0xF6;
  TMOD = TMOD | 0x11;                    // select mode 1
  TR0 = 1;                               // start timer 0
  ET0 = 1;                               // enable timer 0 interrupt
  EA  = 1;                               // global interrupt enable
/* setup the timer 1 interrupt */
  TH1 = 0x28;          // set timer period ; feed dog time is 60 ms
  TL1 = 0x00;
  TMOD = TMOD | 0x11;                    // select mode 1
  TR1 = 1;                               // start timer 1
  ET1 = 1;                               // enable timer 1 interrupt
  EA  = 1;                               // global interrupt enable
do{}while(!TF0&&!TF1);  //wait for timer0 interrupt or timer 1 interrupt
}