Texas Instruments MSP430 User Manual

53
P1OUT = 0;
/* Port 1 Direction Register */
P1DIR = BIT0 | BIT6;
/* Port 1 Interrupt Edge Select Register */
P1IES = BIT3;
/* Port 1 Interrupt Flag Register */
P1IFG = 0;
/* Port 1 Interrupt Enable Register */
P1IE = BIT3;
/* Port 2 Output Register */
P2OUT = 0;
/* Port 2 Port Select Register */
P2SEL &= ~(BIT6 | BIT7);
/* Port 2 Direction Register */
P2DIR = 0;
/* Port 2 Interrupt Edge Select Register */
P2IES = 0;
/* Port 2 Interrupt Flag Register */
P2IFG = 0;
/* USER CODE START (section: GPIO_graceInit_epilogue) */
/* User code */
/* USER CODE END (section: GPIO_graceInit_epilogue) */
}
void System_graceInit(void)
{
/* USER CODE START (section: System_graceInit_prologue) */
/* User initialization code */
/* USER CODE END (section: System_graceInit_prologue) */
/* Clear oscillator fault flag with software delay */
do
{
// Clear OSC fault flag
IFG1 &= ~OFIFG;
// 50us delay
__delay_cycles(50);
} while (IFG1 & OFIFG);
/*
* SR, Status Register
*
* ~SCG1 -- Disable System clock generator 1
* ~SCG0 -- Disable System clock generator 0
* ~OSCOFF -- Oscillator On
* ~CPUOFF -- CPU On
* GIE -- General interrupt enable

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)