How to drive 6 or more servo motor ?

Hello Friends,

I use the TI MSP430G2553 launchpad.

I have to drive 6 or more servo motor.

I search about it and i found this code. Also I use IAR Embedded Software.

#include "msp430g2553.h" // make sure you change the header to suit your particular device.

// Connect the servo SIGNAL wire to P1.2 through a 1K resistor.

#define MCU_CLOCK           1100000

#define PWM_FREQUENCY       46      // In Hertz, ideally 50Hz.

#define SERVO_STEPS         180     // Maximum amount of steps in degrees (180 is common)

#define SERVO_MIN           700     // The minimum duty cycle for this servo

#define SERVO_MAX           3000    // The maximum duty cycle

unsigned int PWM_Period     = (MCU_CLOCK / PWM_FREQUENCY);  // PWM Period

unsigned int PWM_Duty       = 0;                            // %

void main (void){

    unsigned int servo_stepval, servo_stepnow;

    unsigned int servo_lut[ SERVO_STEPS+1 ];

    unsigned int i;

    // Calculate the step value and define the current step, defaults to minimum.

    servo_stepval   = ( (SERVO_MAX - SERVO_MIN) / SERVO_STEPS );

    servo_stepnow   = SERVO_MIN;

    // Fill up the LUT

    for (i = 0; i < SERVO_STEPS; i++) {

        servo_stepnow += servo_stepval;

        servo_lut[i] = servo_stepnow;

    }

    // Setup the PWM, etc.

    WDTCTL  = WDTPW + WDTHOLD;     // Kill watchdog timer

    TACCTL1 = OUTMOD_7;            // TACCR1 reset/set

    TACTL   = TASSEL_2 + MC_1;     // SMCLK, upmode

    TACCR0  = PWM_Period-1;        // PWM Period

    TACCR1  = PWM_Duty;            // TACCR1 PWM Duty Cycle

    P1DIR   |= BIT2;               // P1.2 = output

    P1SEL   |= BIT2;               // P1.2 = TA1 output

    // Main loop

    while (1){

        // Go to 0°

        TACCR1 = servo_lut[0];

        __delay_cycles(100000);

        // Go to 45°

        TACCR1 = servo_lut[45];

        __delay_cycles(100000);

        // Go to 90°

        TACCR1 = servo_lut[90];

        __delay_cycles(100000);

        // Go to 180°

        TACCR1 = servo_lut[179];

        __delay_cycles(100000);

        // Move forward toward the maximum step value

        for (i = 0; i < SERVO_STEPS; i++) {

            TACCR1 = servo_lut[i];

            __delay_cycles(20000);

        }              

        // Move backward toward the minimum step value

        for (i = SERVO_STEPS; i > 0; i--) {

            TACCR1 = servo_lut[i];

            __delay_cycles(20000);

        }

   }

}