f_14_15_eetst.c

来自「* Use 10 MHz crystal frequency. * Use 」· C语言 代码 · 共 53 行

#include "config.h"
#include "serial.c"
#include "serio.c"
#include "delay.h"
#include "ee_module.c"


#define BUFSIZE 64
unsigned char buf[BUFSIZE];
void main(void){
  unsigned char c, cnt, addr,mode, *s;
  serial_init(95,1); // 19200 in HSPLL mode, crystal = 7.3728 MHz
  addr = 0;
  pcrlf();
  printf("PIC18 On-board EEPROM R/W Test");
  pcrlf();
  while(1){
    pcrlf();
    printf("Enter 'w' for write mode, else read: ");
    c=getche();  pcrlf();
    if (c != mode) addr=0; //reset address
    mode = c;
    if (mode == 'w') {
      printf("Enter string, %d chars max: ",BUFSIZE);
      pcrlf();
      s = buf; cnt = 0;
      do { // get a string
	c = getche();
	if (c != 0x0D) {
	  *s = c; s++; cnt++;
	}
      }while(c != 0x0D);
      *s = 0; s++;cnt++;
      pcrlf();
      if (eedata_writestr(buf,addr)) {
	printf("Write unsuccessful!"); pcrlf();
      }
      addr = addr + cnt;
    } else {
      // read a string from EEPROM
      addr = eedata_readstr(buf,addr,BUFSIZE);
      printf("String read: %s",buf);
      pcrlf();
    }
  }
}