// *************************************************************************************************
// @fn close_radio
// @brief Shutdown radio for RF communication.
// @param none
// @return none
// *************************************************************************************************
void close_radio(void)
{
// Disable radio IRQ
RF1AIFG = 0;
RF1AIE = 0;
// Reset radio core
radio_reset();
// Put radio to sleep
radio_powerdown();
}
// *************************************************************************************************
// @fn init_application
// @brief Initialize the microcontroller.
// @param none
// @return none
// *************************************************************************************************
void init_application(void)
{
volatile unsigned char *ptr;
#ifndef EMU
// ---------------------------------------------------------------------
// Enable watchdog
// Watchdog triggers after 16 seconds when not cleared
#ifdef USE_WATCHDOG
WDTCTL = WDTPW + WDTIS__512K + WDTSSEL__ACLK;
#else
WDTCTL = WDTPW + WDTHOLD;
#endif
// ---------------------------------------------------------------------
// Configure PMM
SetVCore(3);
// Set global high power request enable
PMMCTL0_H = 0xA5;
PMMCTL0_L |= PMMHPMRE;
PMMCTL0_H = 0x00;
// ---------------------------------------------------------------------
// Enable 32kHz ACLK
P5SEL |= 0x03; // Select XIN, XOUT on P5.0 and P5.1
UCSCTL6 &= ~XT1OFF; // XT1 On, Highest drive strength
UCSCTL6 |= XCAP_3; // Internal load cap
UCSCTL3 = SELA__XT1CLK; // Select XT1 as FLL reference
UCSCTL4 = SELA__XT1CLK | SELS__DCOCLKDIV | SELM__DCOCLKDIV;
// ---------------------------------------------------------------------
// Configure CPU clock for 12MHz
_BIS_SR(SCG0); // Disable the FLL control loop
UCSCTL0 = 0x0000; // Set lowest possible DCOx, MODx
UCSCTL1 = DCORSEL_5; // Select suitable range
UCSCTL2 = FLLD_1 + 0x16E; // Set DCO Multiplier
_BIC_SR(SCG0); // Enable the FLL control loop
// Worst-case settling time for the DCO when the DCO range bits have been
// changed is n x 32 x 32 x f_MCLK / f_FLL_reference. See UCS chapter in 5xx
// UG for optimization.
// 32 x 32 x 8 MHz / 32,768 Hz = 250000 = MCLK cycles for DCO to settle
__delay_cycles(250000);
// Loop until XT1 & DCO stabilizes, use do-while to insure that
// body is executed at least once
do
{
UCSCTL7 &= ~(XT2OFFG + XT1LFOFFG + XT1HFOFFG + DCOFFG);
SFRIFG1 &= ~OFIFG; // Clear fault flags
} while ((SFRIFG1 & OFIFG));
// ---------------------------------------------------------------------
// Configure port mapping
// Disable all interrupts
__disable_interrupt();
// Get write-access to port mapping registers:
PMAPPWD = 0x02D52;
// Allow reconfiguration during runtime:
PMAPCTL = PMAPRECFG;
// P2.7 = TA0CCR1A or TA1CCR0A output (buzzer output)
ptr = &P2MAP0;
*(ptr+7) = PM_TA1CCR0A;
P2OUT &= ~BIT7;
P2DIR |= BIT7;
// P1.5 = SPI MISO input
ptr = &P1MAP0;
*(ptr+5) = PM_UCA0SOMI;
// P1.6 = SPI MOSI output
*(ptr+6) = PM_UCA0SIMO;
// P1.7 = SPI CLK output
*(ptr+7) = PM_UCA0CLK;
// Disable write-access to port mapping registers:
PMAPPWD = 0;
// Re-enable all interrupts
__enable_interrupt();
#endif
// ---------------------------------------------------------------------
// Configure ports
// ---------------------------------------------------------------------
// Reset radio core
radio_reset();
radio_powerdown();
// ---------------------------------------------------------------------
// Init acceleration sensor
as_init();
// ---------------------------------------------------------------------
// Init LCD
lcd_init();
// ---------------------------------------------------------------------
// Init buttons
init_buttons();
// ---------------------------------------------------------------------
// Configure Timer0 for use by the clock and delay functions
Timer0_Init();
// ---------------------------------------------------------------------
// Init pressure sensor
ps_init();
}
void init_application(void)
{
volatile unsigned char *ptr;
// ---------------------------------------------------------------------
// Enable watchdog
// Watchdog triggers after 16 seconds when not cleared
#ifdef USE_WATCHDOG
WDTCTL = WDTPW + WDTIS__512K + WDTSSEL__ACLK;
#else
WDTCTL = WDTPW + WDTHOLD;
#endif
// ---------------------------------------------------------------------
// Configure port mapping
// Disable all interrupts
__disable_interrupt();
// Get write-access to port mapping registers:
PMAPPWD = 0x02D52;
// Allow reconfiguration during runtime:
PMAPCTL = PMAPRECFG;
// P2.7 = TA0CCR1A or TA1CCR0A output (buzzer output)
ptr = &P2MAP0;
*(ptr + 7) = PM_TA1CCR0A;
P2OUT &= ~BIT7;
P2DIR |= BIT7;
// P1.5 = SPI MISO input
ptr = &P1MAP0;
*(ptr + 5) = PM_UCA0SOMI;
// P1.6 = SPI MOSI output
*(ptr + 6) = PM_UCA0SIMO;
// P1.7 = SPI CLK output
*(ptr + 7) = PM_UCA0CLK;
// Disable write-access to port mapping registers:
PMAPPWD = 0;
// Re-enable all interrupts
__enable_interrupt();
// Init the hardwre real time clock (RTC_A)
rtca_init();
// ---------------------------------------------------------------------
// Configure ports
// ---------------------------------------------------------------------
// Reset radio core
radio_reset();
radio_powerdown();
#ifdef CONFIG_ACCELEROMETER
// ---------------------------------------------------------------------
// Init acceleration sensor
as_init();
#else
as_disconnect();
#endif
// ---------------------------------------------------------------------
// Init buttons
init_buttons();
// ---------------------------------------------------------------------
// Configure Timer0 for use by the clock and delay functions
timer0_init();
/* Init buzzer */
buzzer_init();
// ---------------------------------------------------------------------
// Init pressure sensor
ps_init();
/* drivers/battery */
battery_init();
/* drivers/temperature */
temperature_init();
#ifdef CONFIG_INFOMEM
if (infomem_ready() == -2) {
infomem_init(INFOMEM_C, INFOMEM_C + 2 * INFOMEM_SEGMENT_SIZE);
}
#endif
}