launchpad.c

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#include<msp430g2553.h>
#include<string.h>
#include <launchpad.h>

void desabWDT()
{
    WDTCTL = WDTPW|WDTHOLD;
}

void botao()
{
    P1DIR &= ~BOTAO;
    P1OUT |= BOTAO;
    P1REN |= BOTAO; 
}

void hled(unsigned char numled)
{
    /*numled é LED1 ou LED2 */
    P1DIR|=numled;      
}

/* sensibilidade ao botão */
char readbotao(void)
{
    unsigned volatile sig;
    if ((P1IN & BOTAO) == BOTAO)
        sig = 1;
    else
        sig = 0;
        
    return sig;
            
}

/* Esperar equanto botão não/é pressionao */
void waitbton(unsigned char sinal)
{
    if (sinal==SOLTA)
        while(!readbotao())
        {}
    else if (sinal == APERTA)
        while(readbotao())
        {}
}

/* Acender led */
void ligled(char numled)
{
    P1OUT |= numled;
}

/* Apagar led */
void desled(char numled)
{
    P1OUT &= ~numled;
}

/* Alternar led */
void alterled(unsigned volatile numled)
{
    P1OUT ^= numled;
}

/* delay coxa! -- count 1000 */
void dly_coxa(int numcic)
{
    volatile unsigned int count1 = 0, count2 = 0;
    
    for (count1 = 0; count1< numcic; count1++)
    {
        for(count2 = 0; count2 < 1000; count2++)
        {
        }
    }
}

/* configurar clock em 1MHz */
void dco1mhz()
{
    /* BASEADO EM EXEMPLOS   */
    
    DCOCTL = 0;                             
    BCSCTL1 = CALBC1_1MHZ;                  
    DCOCTL = CALDCO_1MHZ;
}

void hserial()
{
    P1SEL |= PIN_TX + PIN_RX ;                     /* P1.1 = RXD, P1.2=TXD */
    P1SEL2 |= PIN_TX + PIN_RX ;                    /* P1.1 = RXD, P1.2=TXD */
  
    UCA0CTL1 |= UCSSEL_2;                     /* SMCLK */
    UCA0BR0 = 104;                            /* 1MHz 9600 */
    UCA0BR1 = 0;                              /* 1MHz 9600 */
    UCA0MCTL = UCBRS0;                        /* Modulation UCBRSx = 1 */
    UCA0CTL1 &= ~UCSWRST;                     /* **Initialize USCI state machine** */
}

/* le um char da uart */
char getchar()
{
    while(!(IFG2 & UCA0RXBUF));
    return UCA0RXBUF;
}

int putchar(int caracter)
{
    UCA0TXBUF = caracter;
    
    return 0;
}

void wsserial(char *st)
{
    volatile int cont = 0, len = strlen(st);
    
    for(cont=0; cont<len; cont++)
        {
            putchar(st[cont]);
            dly_coxa(1);
        }
}


void setMultitimes()
{
    CCTL0 = CCIE;                             // CCR0 interrupt enabled
    CCR0 = T_100US; 
    TACTL = TASSEL_2 + MC_2;                  // SMCLK, contmode
}