main.c

lpc2138读写SD卡的fat文件系统

/******************************************************************************/
/*  This file is part of the kp weather station development                   */
/*  Copyright kp 2005                                                         */
/******************************************************************************/
/*                                                                            */
/*  Main.C:  kp weather station main routine                                                      */
/*                                                                            */
/******************************************************************************/          
#include <stdio.h>                         		// standard I/O .h-file
#include <LPC213x.H>                       		// LPC213x definitions
#include <bsp.h>								// include board support package
#include <math.h>

extern void init_registers();					// setup regiters to support MCB2180 and project
extern void init_serial (void);            		// Init Serial Interface function prototype
extern void init_clock (void);             		// Init clock Interface function prototype
extern void set_LED (unsigned char led_no, unsigned char led_cmd);
extern void init_timer();
extern void init_timer_1();
extern void delay(int delay_val);
extern int kp_printf(const char *fmt, ...);
extern void wr_byte(unsigned char d, unsigned char x);	//d is the number of digits (leading zeros)
extern void wr_32hex(unsigned int x);
extern float wind_dir (void);
extern void wind_dir_char(void);
extern double wind_speed (unsigned int filterred_data);
extern void disp_lum(unsigned char x);
extern void disp_set_cursor(unsigned char r, unsigned char c);
extern void disp_clr(void);
extern float air_temp (unsigned char ad0);
extern float air_temp_F (float air_c);
extern int read_wind_dir_bits();
extern char wind_dir_str[3];
extern int volatile T0_flag;
extern unsigned volatile int timer_0_capture;
extern float wind_dir_ave;
extern unsigned int tval;
extern unsigned int val;
double speed;
unsigned char last_sec;

int main (void) {
  float tmp1, tmp2, tmp3;
  float ad0, ad1;
  unsigned int n;
  unsigned char task_active = 0x80;				// lets try some tasking
  												// b x x | x x | x x | x x
												//   M   | T1  | T2  | RTC	1st indicates "active"
  init_registers();
  init_serial();                            	// Initialize Serial Interface 
  init_timer();									// init timer 0
  init_timer_1();								// init timer 1
  init_clock();									// init real-time clock

  printf("\n");									// clear displar
  while (ON) {									// while microprocess is on, Loop forever
    if ( ((task_active)&(0x80)) == 0x80 ) {		// test for active
	  set_LED(ZERO,ON);	  						// indicate active
	  task_active &= 0x7F;						// clear active bit (preserve all others)
	}
	else {
   	  set_LED(ZERO,OFF);						// indicate inactive
	  task_active |= 0x80;						// set active bit
	}
disp_lum(1);					// display lighting (0=off, 1=20%...,5=100% 
disp_set_cursor(0,0);
wind_dir_char();
speed=wind_speed(timer_0_capture);
printf("  Wind %s",wind_dir_str); 
printf("  %2.1f MPH  ",speed);  
disp_set_cursor(1,0);
printf("Temp %3.0f",air_temp_F(air_temp(tval))); 
putchar(0xDF); printf("F"); 
printf("  "); wr_byte(2,HOUR);
printf(":");  wr_byte(2,MIN);
printf(":");  wr_byte(2,SEC);

last_sec = SEC;
while (last_sec == SEC);
  }
}