//****************************************************************************** // MSP430G2xx2 Demo - Timer_A, Toggle P1.1/TA0, Up Mode, DCO SMCLK // // Description: Toggle P1.1 using hardware TA0 output Timer_A is configured // for up mode with CCR0 defining period, TA0 also output on P1.1 In this // example, CCR0 is loaded with 500-1 and TA0 will toggle P1.1 at TACLK/500 // Thus the output frequency on P1.1 will be the TACLK/1000 No CPU or // software resources required // ACLK = n/a, SMCLK = MCLK = TACLK = default DCO // As coded with TACLK = SMCLK, P1.1 output frequency is ~1000000/1000 // // MSP430G2xx2 // // /|\| XIN|// | | | // |RST XOUT|// | | // | P1.1/TA0| > SMCLK/1000 // // D Dang // Texas Instruments Inc // December 2010 // Built with CCS Version 4.2.0 and IAR Embedded Workbench Version: 5.10 //****************************************************************************** #include void main(void) { WDTCTL = WDTPW + WDTHOLD; P1DIR |= 0x02; P1SEL |= 0x02; CCTL0 = OUTMOD_4; CCR0 = 500-1; TACTL = TASSEL_2 + MC_1; _BIS_SR(CPUOFF); } // // // // Stop P1.1 P1.1 CCR0 WDT output option select toggle mode // SMCLK, upmode // CPU off