Texas Instruments MSP430 User Manual

120
Code Example
#include <msp430.h>
#include "delay.h"
#include "lcd.h"
unsigned int overflow_count = 0;
unsigned int pulse_ticks = 0;
unsigned int start_time = 0;
unsigned int end_time = 0;
void GPIO_graceInit(void);
void BCSplus_graceInit(void);
void Timer0_A3_graceInit(void);
void Timer1_A3_graceInit(void);
void System_graceInit(void);
void WDTplus_graceInit(void);
void lcd_print(unsigned char x_pos, unsigned char y_pos, unsigned long value);
#pragma vector=TIMER1_A1_VECTOR
__interrupt void TIMER1_A1_ISR_HOOK(void)
{
if(TA1IV == TA1IV_TACCR1)
{
end_time = TA1CCR1;
pulse_ticks = (end_time - start_time);
start_time = end_time;
TA1CCTL1 &= ~CCIFG;
}
}
void main(void)
{
unsigned char i = 0;
unsigned long time_period = 0;
/* Stop watchdog timer from timing out during initial start-up. */
WDTCTL = WDTPW | WDTHOLD;
/* initialize Config for the MSP430 GPIO */
GPIO_graceInit();
/* initialize Config for the MSP430 2xx family clock systems (BCS) */
BCSplus_graceInit();
/* initialize Config for the MSP430 A3 Timer0 */
Timer0_A3_graceInit();
/* initialize Config for the MSP430 A3 Timer0 */
Timer1_A3_graceInit();
/* initialize Config for the MSP430 System Registers */
System_graceInit();

Texas Instruments MSP430 Specifications

General

Program Memory Type	Flash
Clock Speed	Up to 25 MHz (depending on the specific device)
Flash Memory	Up to 512 KB (depending on the specific device)
RAM	Up to 66 KB (depending on the specific device)
Operating Voltage	1.8V - 3.6V (depending on the specific device)
ADC	10-bit or 12-bit SAR ADC
Communication Interfaces	UART, SPI, I2C, USB
DMA	Yes (depending on the specific device)
Operating Temperature	-40°C to +85°C
Architecture	16-bit RISC
Low Power Modes	Multiple (LPM0 to LPM4)