main.c

this the firmware provided freely for the trf7960

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* Copyright (C) 2006-2007 Texas Instruments, Inc.
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//--------------------------------------
//Program with hardware USART and
//paralel communication interface
//with TIR reader chip.
//

//PORT 2.0-2.7 - (IO0-IO7) for parallel interface with reader chip
//PORT3.4 - PORT3.5 - USB/UART control signals
//PORT1.5 - IRQ
//PORT3.7 - DATA_CLK
//PORT4.0 - PORT4.6 - signaling LEDs
//--------------------------------------

#define DBG		0

#include <MSP430x15x.h>     	//can't be greater than 256+13 	
#include <stdlib.h>		//Processor specific definitions
#include <stdio.h>
#include "hardware.h"
#include "spi.h"
#include "anticollision.h"
#include "globals.h"
#include "tiris.h"
#include "14443.h"
#include "host.h"
#include "epc.h"
#include "automatic.h"

// =======================================================================

char rxdata;			//RS232 RX data byte
unsigned char buf[BUF_LENGTH];
signed char RXTXstate;	//used for transmit recieve byte count
unsigned char flags;	//stores the mask value (used in anticollision)
unsigned char RXErrorFlag;
unsigned char RXflag;		//indicates that data is in buffer
unsigned char i_reg;	//interrupt register
unsigned char counter;
unsigned char CollPoss;

// =========================================================================
// Main function with init and an endless loop
//
//
void main(void) {

    // initialize peripherals
    WDTCTL = WDTPW + WDTHOLD;             // Stop WDT

    EnableSet;
    TRFDisable;
    delay_ms(1);
    TRFEnable;

    PARset();                           //Set Port Functions
    InitialSettings();                  // Set MCU Clock Frequency to 13.56/2=6.78 MHz and OOK Modulation

    OSCsel(0x00);                       //set the oscilator

    delay_ms(10);

    LEDpowerON;
    USARTset();                      //Set the UART for 115.2 kbps data rate

    EnableInterrupts;                    // General enable interrupts

    OOKdirIN;			//set OOK port tristate
    ENABLE = 1;

    POLLING = 1;
    FindTags(0x00);
}


// === end of main =====================================================


// === Modifications====================================================
// 10/30/06 Aarthi Moved the while(1) loop from function main() to
//                 file host.c
// =====================================================================