void us_ticker_init(void) {
if (us_ticker_inited) return;
us_ticker_inited = 1;
pit_init();
lptmr_init();
}
int timer_init(tim_t dev, unsigned long freq, timer_cb_t cb, void *arg)
{
if ((unsigned int)dev >= TIMER_NUMOF) {
/* invalid timer */
return -1;
}
/* demultiplex to handle two types of hardware timers */
switch (_timer_variant(dev)) {
case TIMER_PIT:
return pit_init(_pit_index(dev), freq, cb, arg);
case TIMER_LPTMR:
return lptmr_init(_lptmr_index(dev), freq, cb, arg);
default:
return -1;
}
}
void main (void)
{
#ifndef RAM16
int i;
int counter = 0;
#endif
#ifdef KEIL
start();
#endif
LLWU_Init();
SW_LED_Init();
LED0_ON;
LED1_ON;
LED2_ON;
LED3_ON;
// Dynamic interrupt vector modification whilst those interrupts are disabled
// __VECTOR_RAM[INT_ADC0] = (uint32)adc0_isr; // plug isr into vector table in case not there already
if ((RCM_SRS0 & RCM_SRS0_POR_MASK) || (RCM_SRS0 & RCM_SRS0_PIN_MASK))
{
printf("\nRunning VLPR LLS ADC Demo Project");
// ch = in_char();
// out_char(ch);
// disable_uart();
init_ADC16();
}
lptmr_init(100, LPTMR_USE_LPOCLK);
/* Enable LPTMR wakeup interrupt */
enable_irq(LPTMR_irq_no);
/* Enable ADC ready for this interrupt. */
// enable_irq(ADC0_irq_no) ;
EnableInterrupts;
//Set the STOPM field to 0b011 for LLS mode
SMC_PMCTRL |= SMC_PMCTRL_STOPM(0x3) ;
dummyread=SMC_PMCTRL;
// Set the SLEEPDEEP bit to enable deep sleep mode (STOP)
SCB_SCR |= SCB_SCR_SLEEPDEEP_MASK;
#ifdef RAM16
ram_main();
#else
while(1)
{
// WFI instruction will start entry into LLS mode
counter++;
if (counter & 0x0001)
F_LED0_ON;
else
F_LED0_OFF;
if (counter & 0x0002)
F_LED3_ON;
else
F_LED3_OFF;
if (counter & 0x0004)
F_LED2_ON;
else
F_LED2_OFF;
if (counter & 0x0008)
F_LED1_ON;
else
F_LED1_OFF;
asm("WFI");
for (i=0;i<1000;i++){
if (ADC0_SC2 & ADACT_ACTIVE)
F_LED2_TOGGLE;
else
break;
}
result0A = ADC0_RA ;
}
#endif
}