#include <hidef.h> /* for EnableInterrupts macro */
#include "derivative.h" /* include peripheral declarations */
#include <stdio.h>  /* for sprinf() function */ 

/* Global Variables */
unsigned char length_of_string;
char text[50];

/* Function prototypes */
void Data_Serial (void);
void SCI_Init(void);
void Send_string (char *ptr, unsigned char length); 

/********************************** SCI INITIALIZATION ********************************************/
void SCI_Init(void)
{
  MODRR0 = 0x08;    //SCI1 to PT4, PT5 pins
  SCI1BD = 0x028B;  //SCI baud rate = bus clock / (SBR[15:0] = 6.25MHz/651 = 9600kbps)                    
  SCI1CR2 = 0x08;   //transmitter enable
} 

/******************************* SEND DATA TO SERIAL LINE *****************************************/
void Send_string (char *ptr, unsigned char length)
{
  unsigned char i; 
  for (i=0; i<length; i++)
  {
    while(!SCI1SR1_TC){}; //wait for empty TX buffer
    SCI1DRL=*ptr++;       //send SCI char
  }

}
 

void main(void) {

  EnableInterrupts;
  /* include your code here */
  /*------------------------- SELECT POWER OPTION ------------------------------*/
  //Note: Write once Register, use one option only.
  //CPMUVREGCTL = 0x01;  // Use internal voltage 3.3V regulator for VDDX domain or
  //CPMUVREGCTL = 0x02;  // Turn on external ballast transistor for 3.3V VDDX domain or
  CPMUVREGCTL = 0x81;  // Use internal voltage 5V regulator for VDDX domain or
  //CPMUVREGCTL = 0x82;  // Turn on external ballast transistor for 5V VDDX domain
    
  /*------------------------- SEND STATUS OVER SCI------------------------------*/  
    SCI_Init();            /*configure the SCI1 (TXD1 on PT1 and RXD1 on PT0 (MODRR0 register set by default))*/

    length_of_string = sprintf(text,"\n\rResults before we unsecure by Backdoor Key \n\r");
    Send_string(&text[0], length_of_string);
    length_of_string = sprintf(text,"FSEC register is: %X \n\r", FSEC);
    Send_string(&text[0], length_of_string);
    length_of_string = sprintf(text,"value at address 0xFFFE0F is: %X \n\r", *(unsigned char *)0xFFFE0F);
    Send_string(&text[0], length_of_string);
    length_of_string = sprintf(text,"FSTAT register is: %X \n\r", FSTAT);
    Send_string(&text[0], length_of_string);
    length_of_string = sprintf(text,"FERSTAT register is: %X \n\r", FERSTAT);
    Send_string(&text[0], length_of_string); 
  

  for(;;) {
    __RESET_WATCHDOG();	/* feeds the dog */
    
  } /* loop forever */
  /* please make sure that you never leave main */

}