/***************************************************
 * SPI Testing program
 *
 * ************************************************/
        
#include <system.h>

#include "EESD.h"

#pragma DATA _CONFIG1H, _OSC_HS_1H //10 mhz
#pragma DATA _CONFIG2H, _WDT_OFF_2H 
#pragma DATA _CONFIG4L, _LVP_OFF_4L 
#pragma DATA _CONFIG3H, _MCLRE_ON_3H


#pragma CLOCK_FREQ 10000000
volatile bit mssp@PIR1.3; 		// interrupt flag MSSP, trans/recp complete

void SPI_init(void)
{

// Initialize SPI interface
////////////////

// INTCON bits enable interrupts
	intcon.7 = 1;
	intcon.6 = 1;

// PIE1.3 enables MSSP interrupts
	pie1.3 = 1;

// IPR1.3 sets high priority inter
	
	//ipr1.3 = 1; 

// SSPCON1 control register for SPI mode
	
	sspcon1.5 = 1; // SSPEN
	sspcon1.4 = 0; // CKP
	sspcon1.3 = 0; // SSPM (3:0)
	sspcon1.2 = 0;
	sspcon1.1 = 1;
	sspcon1.0 = 0;
	
// SSPSTAT status register for SPI mode
	sspstat.7 = 1; // NOT SURE
	sspstat.6 = 1; // CKE
	
// trisc ? ask Schafer about I/O
	
	trisc.5 = 0; // SDO, serial data out
	trisc.3 = 0; // SCK, serial clock
	trisc.4 = 1; // SDI?????? contradicting datasheet and diagram
	
	trisd.0 = 1; // Reset
	trisd.1 = 1; // Voltage regulator
	
	trisd.2 = 1; // CSn (chip select)
	
// FIFOs and the rest
	
	trisb.1 = 1; // FIFO
	trisb.0 = 1; // FIFOP
	trisb.2 = 1; // CCA
	trisc.2 = 1; // SDF	
	
	return;
}

void main(void)
{

SPI_init();
LCD_init();

trisd.2 = 0; // CSn set
sspbuf = 0x13; // Command Strobe for RSSI
sspbuf.7 = 0; // Register access
sspbuf.6 = 1; // Read register

	
	while (mssp == 0)
	{	}

trisd.2 = 1; // CSn clear	
LCD_hex(sspbuf);
mssp = 0;
	
}