LaunchPad User Experience Application: msp430g2231 TO msp430g2553 [*SOLVED*]

Hi, please can you describe what is not working and if you customized also these parts where timer0_Ax is accessed?

 On the new launchpad is a good idea to insert the bigger 2553 but example no more work out of box, so also the small 2211 and the 2231 i suggest remain in the box to avoid discourage new users.

void ConfigureTimerPwm(void)
{
  timerMode = TIMER_PWM_MODE;
   
  TACCR0 = TIMER_PWM_PERIOD;                              //    
  TACTL = TASSEL_2 | MC_1;                  // TACLK = SMCLK, Up mode.
  TACCTL0 = CCIE;
  TACCTL1 = CCIE + OUTMOD_3;                // TACCTL1 Capture Compare
  TACCR1 = 1;
}
 
void ConfigureTimerUart(void)
{
  timerMode = TIMER_UART_MODE;              // Configure TimerA0 UART TX  
                            
  TACCTL0 = OUT;                              // TXD Idle as Mark

Its Working!!!

Application for MSP430:

/******************************************************************************
 *                  MSP-EXP430G2-LaunchPad User Experience Application
 *
 * 1. Device starts up in LPM3 + blinking LED to indicate device is alive
 *    + Upon first button press, device transitions to application mode
 * 2. Application Mode
 *    + Continuously sample ADC Temp Sensor channel, compare result against
 *      initial value
 *    + Set PWM based on measured ADC offset: Red LED for positive offset, Green
 *      LED for negative offset
 *    + Transmit temperature value via TimerA UART to PC
 *    + Button Press --> Calibrate using current temperature
 *                       Send character '°' via UART, notifying PC
 * SFB 1/2012
 ******************************************************************************/

#include  "msp430g2553.h"

#ifndef TIMER0_A1_VECTOR
#define TIMER0_A1_VECTOR    TIMERA1_VECTOR
#define TIMER0_A0_VECTOR    TIMERA0_VECTOR
#endif

#define     LED0                  BIT0
#define     LED1                  BIT6
#define     LED_DIR               P1DIR
#define     LED_OUT               P1OUT



#define     BUTTON                BIT3
#define     BUTTON_OUT            P1OUT
#define     BUTTON_DIR            P1DIR
#define     BUTTON_IN             P1IN
#define     BUTTON_IE             P1IE
#define     BUTTON_IES            P1IES
#define     BUTTON_IFG            P1IFG
#define     BUTTON_REN            P1REN

#define     TXD                   BIT1                      // TXD on P1.1
#define     RXD                   BIT2                      // RXD on P1.2

#define     APP_STANDBY_MODE      0
#define     APP_APPLICATION_MODE  1

#define     TIMER_PWM_MODE        0
#define     TIMER_UART_MODE       1
#define     TIMER_PWM_PERIOD      2000
#define     TIMER_PWM_OFFSET      20

#define     TEMP_SAME             0
#define     TEMP_HOT              1
#define     TEMP_COLD             2

#define     TEMP_THRESHOLD        5

//   Conditions for 9600/4=2400 Baud SW UART, SMCLK = 1MHz
#define     Bitime_5              0x05*4                      // ~ 0.5 bit length + small adjustment
#define     Bitime                13*4//0x0D

#define     UART_UPDATE_INTERVAL  1000


unsigned char BitCnt;


unsigned char applicationMode = APP_STANDBY_MODE;
unsigned char timerMode = TIMER_PWM_MODE;

unsigned char tempMode;
unsigned char calibrateUpdate = 0;
unsigned char tempPolarity = TEMP_SAME;
unsigned int TXByte;

/* Using an 8-value moving average filter on sampled ADC values */
long tempMeasured[8];
unsigned char tempMeasuredPosition=0;
long tempAverage;

long tempCalibrated, tempDifference;



void InitializeLeds(void);
void InitializeButton(void);
void PreApplicationMode(void);                     // Blinks LED, waits for button press
void ConfigureAdcTempSensor(void);
void ConfigureTimerPwm(void);
void ConfigureTimerUart(void);
void Transmit(void);
void InitializeClocks(void);

void main(void)
{
  unsigned int uartUpdateTimer = UART_UPDATE_INTERVAL;
  unsigned char i;
  WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT

  InitializeClocks();
  InitializeButton();
  InitializeLeds();
  PreApplicationMode();                     // Blinks LEDs, waits for button press

  /* Application Mode begins */
  applicationMode = APP_APPLICATION_MODE;
  ConfigureAdcTempSensor();
  ConfigureTimerPwm();

  __enable_interrupt();                     // Enable interrupts.


  /* Main Application Loop */
  while(1)
  {
    ADC10CTL0 |= ENC + ADC10SC;             // Sampling and conversion start
    __bis_SR_register(CPUOFF + GIE);        // LPM0 with interrupts enabled


    /* Moving average filter out of 8 values to somewhat stabilize sampled ADC */
    tempMeasured[tempMeasuredPosition++] = ADC10MEM;
    if (tempMeasuredPosition == 8)
      tempMeasuredPosition = 0;
    tempAverage = 0;
    for (i = 0; i < 8; i++)
      tempAverage += tempMeasured[i];
    tempAverage >>= 3;                      // Divide by 8 to get average

    if ((--uartUpdateTimer == 0) || calibrateUpdate )
    {
      ConfigureTimerUart();
      if (calibrateUpdate)
      {
        TXByte = 248;                       // A character with high value, outside of temp range
        Transmit();
        calibrateUpdate = 0;
      }
      TXByte = (unsigned char)( ((tempAverage - 630) * 761) / 1024 );
      Transmit();
      uartUpdateTimer = UART_UPDATE_INTERVAL;
      ConfigureTimerPwm();
    }


    tempDifference = tempAverage - tempCalibrated;
    if (tempDifference < -TEMP_THRESHOLD)
    {
      tempDifference = -tempDifference;
      tempPolarity = TEMP_COLD;
      LED_OUT &= ~ LED1;
    }
    else
    if (tempDifference > TEMP_THRESHOLD)
    {
      tempPolarity = TEMP_HOT;
      LED_OUT &= ~ LED0;
    }
    else
    {
      tempPolarity = TEMP_SAME;
      TACCTL0 &= ~CCIE;
      TACCTL1 &= ~CCIE;
      LED_OUT &= ~(LED0 + LED1);
    }

    if (tempPolarity != TEMP_SAME)
    {
      tempDifference <<= 3;
      tempDifference += TIMER_PWM_OFFSET;
      TACCR1 = ( (tempDifference) < (TIMER_PWM_PERIOD-1) ? (tempDifference) : (TIMER_PWM_PERIOD-1) );
      TACCTL0 |= CCIE;
      TACCTL1 |= CCIE;
    }
  }
}

void PreApplicationMode(void)
{
  LED_DIR |= LED0 + LED1;
  LED_OUT |= LED0;                          // To enable the LED toggling effect
  LED_OUT &= ~LED1;

  BCSCTL1 |= DIVA_1;                        // ACLK/2
  BCSCTL3 |= LFXT1S_2;                      // ACLK = VLO

  TACCR0 = 1200;                             //
  TACTL = TASSEL_1 | MC_1;                  // TACLK = SMCLK, Up mode.
  TACCTL1 = CCIE + OUTMOD_3;                // TACCTL1 Capture Compare
  TACCR1 = 600;
  __bis_SR_register(LPM3_bits + GIE);          // LPM0 with interrupts enabled
}

void ConfigureAdcTempSensor(void)
{
  unsigned char i;
  /* Configure ADC Temp Sensor Channel */
  ADC10CTL1 = INCH_10 + ADC10DIV_3;         // Temp Sensor ADC10CLK/4
  ADC10CTL0 = SREF_1 + ADC10SHT_3 + REFON + ADC10ON + ADC10IE;
  __delay_cycles(1000);                     // Wait for ADC Ref to settle
  ADC10CTL0 |= ENC + ADC10SC;               // Sampling and conversion start
  __bis_SR_register(CPUOFF + GIE);          // LPM0 with interrupts enabled
  tempCalibrated = ADC10MEM;
  for (i=0; i < 8; i++)
    tempMeasured[i] = tempCalibrated;
  tempAverage = tempCalibrated;
}


void ConfigureTimerPwm(void)
{
  timerMode = TIMER_PWM_MODE;

  TACCR0 = TIMER_PWM_PERIOD;                              //
  TACTL = TASSEL_2 | MC_1;                  // TACLK = SMCLK, Up mode.
  TACCTL0 = CCIE;
  TACCTL1 = CCIE + OUTMOD_3;                // TACCTL1 Capture Compare
  TACCR1 = 1;
}

void ConfigureTimerUart(void)
{
  timerMode = TIMER_UART_MODE;               // Configure TimerA0_0 UART TX

  CCTL0 = OUT;                               // TXD Idle as Mark
  TACTL = TASSEL_2 + MC_2 + ID_3;            // SMCLK/8, continuous mode
  P1SEL |= TXD + RXD;                        //
  P1DIR |= TXD;                              //
}

// Function Transmits Character from TXByte
void Transmit()
{
  BitCnt = 0xA;                             // Load Bit counter, 8data + ST/SP
  while (CCR0 != TAR)                       // Prevent async capture
    CCR0 = TAR;                             // Current state of TA counter
  CCR0 += Bitime;                     // Some time till first bit
  TXByte |= 0x100;                        // Add mark stop bit to TXByte
  TXByte = TXByte << 1;                 // Add space start bit
  CCTL0 =  CCIS0 + OUTMOD0 + CCIE;          // TXD = mark = idle
  while ( CCTL0 & CCIE );                   // Wait for TX completion
}



// Timer A0 interrupt service routine
#pragma vector=TIMER0_A0_VECTOR
__interrupt void Timer_A (void)
{
  if (timerMode == TIMER_UART_MODE)
  {
    CCR0 += Bitime;                           // Add Offset to CCR0
    if (CCTL0 & CCIS0)                        // TX on CCI0B?
    {
      if ( BitCnt == 0)
        CCTL0 &= ~ CCIE;                        // All bits TXed, disable interrupt
      else
      {
        CCTL0 |=  OUTMOD2;                    // TX Space
        if (TXByte & 0x01)
        CCTL0 &= ~ OUTMOD2;                   // TX Mark
        TXByte = TXByte >> 1;
        BitCnt --;
      }
    }
  }
  else
  {
    if (tempPolarity == TEMP_HOT)
      LED_OUT |= LED1;
    if (tempPolarity == TEMP_COLD)
      LED_OUT |= LED0;
    TACCTL0 &= ~CCIFG;
  }
}

#pragma vector=TIMER0_A1_VECTOR
__interrupt void ta1_isr(void)
{
  TACCTL1 &= ~CCIFG;
  if (applicationMode == APP_APPLICATION_MODE)
    LED_OUT &= ~(LED0 + LED1);
  else
    LED_OUT ^= (LED0 + LED1);

}

void InitializeClocks(void)
{

  BCSCTL1 = CALBC1_1MHZ;                    // Set range
  DCOCTL = CALDCO_1MHZ;
  BCSCTL2 &= ~(DIVS_3);                         // SMCLK = DCO / 8 = 1MHz
}

void InitializeButton(void)                 // Configure Push Button
{
  BUTTON_DIR &= ~BUTTON;
  BUTTON_OUT |= BUTTON;
  BUTTON_REN |= BUTTON;
  BUTTON_IES |= BUTTON;
  BUTTON_IFG &= ~BUTTON;
  BUTTON_IE |= BUTTON;
}


void InitializeLeds(void)
{
  LED_DIR |= LED0 + LED1;
  LED_OUT &= ~(LED0 + LED1);
}

/* *************************************************************
 * Port Interrupt for Button Press
 * 1. During standby mode: to exit and enter application mode
 * 2. During application mode: to recalibrate temp sensor
 * *********************************************************** */
#pragma vector=PORT1_VECTOR
__interrupt void PORT1_ISR(void)
{
  BUTTON_IFG = 0;
  BUTTON_IE &= ~BUTTON;            /* Debounce */
  WDTCTL = WDT_ADLY_250;
  IFG1 &= ~WDTIFG;                 /* clear interrupt flag */
  IE1 |= WDTIE;

  if (applicationMode == APP_APPLICATION_MODE)
  {
    tempCalibrated = tempAverage;
    calibrateUpdate  = 1;
  }
  else
  {
    applicationMode = APP_APPLICATION_MODE; // Switch from STANDBY to APPLICATION MODE
    __bic_SR_register_on_exit(LPM3_bits);
  }
}

#pragma vector=WDT_VECTOR
__interrupt void WDT_ISR(void)
{
    IE1 &= ~WDTIE;                   /* disable interrupt */
    IFG1 &= ~WDTIFG;                 /* clear interrupt flag */
    WDTCTL = WDTPW + WDTHOLD;        /* put WDT back in hold state */
    BUTTON_IE |= BUTTON;             /* Debouncing complete */
}

// ADC10 interrupt service routine
#pragma vector=ADC10_VECTOR
__interrupt void ADC10_ISR (void)
{
  __bic_SR_register_on_exit(CPUOFF);        // Return to active mode
}


Aplication GUI (Processing):

/**
 * LaunchPad GUI
 * 
 * Select COM port that LaunchPad is connected to
 * receive serial communication from LaunchPad for 
 * instantaneous temperature readings.
 *
**/
PFont fontA;
char instruct;
color backColor;
int dataRead;
boolean portChosen = false;
int COMPort;
int [] keyIn = new int[3];
int i, keyIndex=0;



// The serial port:
Serial myPort; 

void setup()
{
  //setup window

  size(1000, 500);
  smooth();
  //load font
  fontA = loadFont("CourierNew36.vlw");
  
  // Set the font, its size (in units of pixels), and alignment
  textAlign(CENTER);
  
  //Set background color
  color baseColor = color(70);
  backColor = baseColor;
  //import serial library
  import processing.serial.*;

  // List all the available serial ports, then give prompt
  println(Serial.list());
  println("Please type in the serial COM port that your LaunchPad is connected to.");
  
  background(backColor);
  stroke(255);
  textFont(fontA, 13);
  text("Please, select the COM port that your LaunchPad is connected to.", 265, 20);
  textAlign(LEFT);
  for(i=0; i<Serial.list().length; i++){
    text("[" + i + "] " + Serial.list()[i], 215, 38+13*i);
  }
  //wait for keypress --> Refer to void keyPressed()
}

void draw()
{
  if(portChosen == true){
    dataRead= myPort.read();
    if(dataRead != -1){
      
      //clear previous temperature reading from screen
      background(backColor);
      stroke(255);
      //Update console
      print("Temp: ");
      print(dataRead); 
      println("°");
      
      //Update on screen GUI
      text("Temperatura atual: ", 420, 60);
      text(dataRead, 835, 60);      
      text("°", 900, 60);      
      
    }
  }
}

//wait for key press. Once key is entered, initialize serial com port
void keyPressed() { 
  if(portChosen == false){
    
    if (key != 10) //Enter
      keyIn[keyIndex++] = key-48;
    else
    {
      COMPort = 0;
      for (i = 0; i < keyIndex; i++)
        COMPort = COMPort * 10 + keyIn[i];      
      println(COMPort);
      myPort = new Serial(this, Serial.list()[COMPort], 2400);
      portChosen = true;
      textFont(fontA, 60); // change font size & alignment for temp readings
      textAlign(CENTER);
    }
  }
}

hi !

i have the same problem, i'm a starter and i dont know what i need to do to work the program! i have started a new project and paste the code here, but it show a lot of errors...

Thank for the help!

The code is for the MSP430G2553. Which MSP do you have? Not all of them have the same internal modules. Also, the code after "Aplication GUI (Processing):" is for the PC side GUI and doesn't belong to the MSP firmware.