#include "config.h"#include "serial.c"// tests power-on reset bits, watchdog timer, and persistent variables char getch (void);
void putch (char c);// return 8 bit char from Recieve port char getch (void){  unsigned char c;  while (!RCIF);  // check RCIF bit   c = RCREG;  return(c);}// send 8 bit char to Recieve port void putch (char c){  // wait until transmit reg empty   while (!TXIF); // check TXIF bit   TXREG = c;}     void pcrlf (void){  putch(0x0a);  putch(0x0d);}// 'persisent' prevents reset_cnt from being cleared on reset// however, reset_cnt is still stored in register bank, so is volatile// For persistent variables, CANNOT assume any initial values!
#if defined(HI_TECH_C)persistent char reset_cnt;
#endif
#if defined(__18CXX)
//MCC18 initialization controlled by startup code that is linked
// in - either init all memory zero, just do explicit initializations,
// or do no initialization at all. This project uses
// the startup code that only does explicit initialization, so
// the variable below is not initialized, cannot assume an initial value
char reset_cnt;  
#endif
void main(void){  int i;  char c;  serial_init(95,1); // 19200 in HSPLL mode, crystal = 7.3728 MHz   pcrlf(); // this subroutine prints a newline to the terminal  if (POR == 0){  // bit 2 in RCON register, cleared to 0 on power-up reset    printf("Power-on reset has occurred.");    pcrlf();    POR = 1;  // setting to bit to 1 means that will remain a '1' for other reset types    reset_cnt = 0;  }  if (TO == 0) {    SWDTEN = 0; // disable watchdog timer    printf("Watchdog timer reset has occurred.\n");    pcrlf();  }  i = reset_cnt;  printf("Reset cnt is: %d",i);  pcrlf();  reset_cnt++;  while(1) {    printf("'1' to enable watchdog timer"); pcrlf();    printf("'2' for sleep mode");  pcrlf();    printf("'3' for both watchdog timer and sleep mode");  pcrlf();    printf("Anything else does nothing, enter keypress: ");    c = getch();    putch(c);    pcrlf();    if (c == '1') SWDTEN = 1;  // enable watchdog timer    else if (c == '2') {	// use SLEEP() instead of asm("sleep") for portability	// between HI-TECH and MCC Compilers      	SLEEP();     }    else if (c == '3') {      SWDTEN = 1;     // enable watchdog timer      SLEEP();     }  }}