MSP430

MSP430G2 Launchpad

Some links

Tutorials

• http://mspsci.blogspot.cz/2010/07/tutorial-01-getting-started.html
• How to solder the 32KHz Crystal on to the launchpad

SPI Interface (USCI)

• http://fortytwoandnow.blogspot.ch/2012/07/msp430g2-usci-spi-interface-1.html

Code Examples

• MSP430G2xx3
• MSP430G2xx2

Datasheets

• MSP430G2553

TI Guides

• MSP430x2xx Family User's Guide
• Software I2C Slave Using the MSP430

Projects

• RTC clock

Code Examples

Timer and Button Interrupts

Blinking LED swaps on Button click. Implemented using interrupts

<syntaxhighlight lang="c">

1. include <msp430g2553.h>

__attribute__((interrupt(TIMER0_A0_VECTOR))) void CCR0_ISR(void) {

   P1OUT ^= BIT6 | BIT0;

}

__attribute__((interrupt(PORT1_VECTOR))) void BtnClick(void) {

   if( P1IFG & BIT3 ) {
       P1IFG &= ~BIT3;

       P1DIR ^= BIT6|BIT0;
   }

}

main() {

   WDTCTL = WDTPW + WDTHOLD;

   TACCR0 = 62500 - 1;
   TACCTL0 = CCIE;
   TACTL = TASSEL_2 + ID_3 + MC_1 + TACLR;
   P1REN = BIT3;
   P1DIR = BIT6;
   P1OUT = BIT6|BIT3;
   P1IES |= BIT3;
   P1IFG &= ~BIT3;
   P1IE |= BIT3;

   __enable_interrupt();

   for(;;);

} </syntaxhighlight>