MSPBoard CC2500

/* ------------------------------------------------------------------------------------------------
 *  MSP430 Board - Portable Radio Operation - Tranmissor and Receptor!
 *  Copyright ©2011 - Version 0.02
 *  File: functions.h
 *  Blog: http://OAKcoders.com/ (Access it)!
 *  (Functions by #Utroz# & #Kaddoush#)
 * ------------------------------------------------------------------------------------------------
 */

/* Low Power Mode */
#ifdef __LOW_MODE_ON
  #define   __ENERGY_HUNGRY LPM_3   /* Set a low power mode on BIT_SR_register - Options: (LPM_0(G.I) to LPM_4)*/
#endif

#include "mrfi.h"

void __start_clock_signal(uint32_t arg);
void __push_button_modules(void);
void __board_mode(void);

/* This is responsible to check Current LED Color */
typedef int8_t __LED_status;

/* Led Default Value */
#define LED_RED BIT0
#define LED_GREEN BIT1

/* Define a LED out status */
#define LED_OUT P1OUT

/* This function turn LED off */
#define TURN_LED_OFF()      LED_OUT &= 0x00;
#define LED_COLOR_CHECK()   if(i == LED_RED) i++; else i--;

/* ---------------------------
 * The line below switches a board status, if argument is a 1, it enter on first mode,
 * that is, enables the (G.I) and (LPM 3) turn on; else if result is other, then it entered only in (G.I). */
#define LPM_0   0x00 // Only Global Interruption
#define LPM_1   0x01 // Low Power Mode 1
#define LPM_2   0x02 // Low Power Mode 2
#define LPM_3   0x03 // Low Power Mode 3
#define LPM_4   0x04 // Low Power Mode 4
//-----------------------

/* ------------------------------------------------------------------------------------------------
 *  MSP430 Board - Portable Radio Operation - Tranmissor and Receptor!
 *  Copyright ©2011 - Version 0.02
 *  File: functions.c
 *  Blog: http://OAKcoders.com/ (Access it)!
 *  (Functions by #Utroz# & #Kaddoush#)
 * ------------------------------------------------------------------------------------------------
 */

#include "functions.h"

void __start_clock_signal(uint32_t arg)
{
    /* Clock Signal */
    BCSCTL3 |= LFXT1S_2;
    TACCTL0 = CCIE; /* Enable a timer interruption */
    TACCR0 = arg; // Delay.
    TACTL = MC_1+TASSEL_1;
}

void __push_button_modules(void)
{
    /* Enable the internal resistor of
     * the button */
    P1REN |= 0x04;

    /* Enable interruption on P1.2 */
    P1IE |= 0x04;
}

/* Set a value to low power mode */
void __board_mode(void)
{
     #if (__ENERGY_HUNGRY == LPM_0)
       __bis_SR_register(GIE);
     #elif (__ENERGY_HUNGRY == LPM_1)
        __bis_SR_register(GIE+LPM1_bits);
     #elif (__ENERGY_HUNGRY == LPM_2)
        __bis_SR_register(GIE+LPM2_bits);
     #elif (__ENERGY_HUNGRY == LPM_3)
        __bis_SR_register(GIE+LPM3_bits);
     #elif (__ENERGY_HUNGRY == LPM_3)
        __bis_SR_register(GIE+LPM4_bits);
     #else NULL;
     #endif
}
//-----------------------

/* ------------------------------------------------------------------------------------------------
 *  MSP430 Board - Portable Radio Operation - Tranmissor and Receptor!
 *  Copyright ©2011 - Version 0.02
 *  File: main.c
 *  Blog: http://OAKcoders.com/ (Access it)!
 *  (CC2500 Transmissor / Receptor by #Utroz# & #Kaddoush#)
 * ------------------------------------------------------------------------------------------------
 */

/* Setting Defaults */
#define   __RADIO_ON      /* Enable/Disable a MRFI(RADIO) - Options: (ON/OFF) */
#define   __MRFI_RX       /* Enable Transmissor or Receptor - Op: (TR/RX) */
#define   __LOW_MODE_ON   /* Enable/Disable Low Power Mode - Op: (ON/OFF) */
#define   __BUTTON_ON     /* Enable/Disable a Push Button! - Op: (ON/OFF) */

#include "functions.h"

/* This variable is responsible to alternative LED */
__LED_status i = 0x01;

int main( void )
{
    /* This function disable the watchdog, initialize the MCLK at 8 MHz,
     * set LED ports as outputs and the button port as input */
    BSP_Init();

    #ifdef __RADIO_ON
      /* This function initialize 6 wires between the MSP 430 and the CC2500, powers-up the
       * CC2500 and configures the CC2500 47 registers and turns on interrupts from the CC2500 */
      MRFI_Init();

      /* Wakes up the radio, it turns on the 26MHz crystal attach to it without entering
       * RX or TX mode */
      MRFI_WakeUp();
    #endif

    #ifdef __MRFI_RX
      /* Switches the radio to RX mode; from this line on, it can receive packets, in which case
       * the interruption function MRFI_RxCompleteISR is called */
      MRFI_RxOn();

      LED_OUT |= LED_RED;
      __start_clock_signal(0x9C40); /* Signal Clock modules */
    #else
      LED_OUT |= LED_GREEN;
    #endif

    #ifdef __BUTTON_ON
      __push_button_modules(); /* Starting a push button modules... */
    #endif

    #ifdef __LOW_MODE_ON
      __board_mode(); /* Enable a global interruption or/and Low Power Mode */
    #endif
}

/* Transmissor */
#ifdef __MRFI_TR
  /* Push Button Interrupt */
  #pragma vector =PORT1_VECTOR
  __interrupt void Port_1 (void)
  {
    P1IFG &= ~0x04;
    mrfiPacket_t packet;

    /* The first byte is the length of the payload together with source
     * and destination address */
    packet.frame[0]=8+20;

    /* This function is responsible
     * to send packets */
    MRFI_Transmit(&packet , MRFI_TX_TYPE_FORCED);
    P1OUT ^= 0x02;
  }
/* Receptor */
#else
  /* This function is called when a packet is received */
  void MRFI_RxCompleteISR()
  {
    /* This functions is responsible to check delay color */
    LED_COLOR_CHECK();

    /* Turns off Led's */
    TURN_LED_OFF();
  }

  /* Push Button Interrupt */
  #pragma vector =PORT1_VECTOR
  __interrupt void Port_1 (void)
  {
    P1IFG &= ~0x04;

    LED_COLOR_CHECK();
    TURN_LED_OFF();
  }

/* Timer Interrupt by Clock Signal */
#pragma vector =TIMERA0_VECTOR
__interrupt void Timer_A (void)
{
    if(i == LED_RED) LED_OUT ^= LED_RED;
    else LED_OUT ^= LED_GREEN;
}
#endif