42 #include "sys/clock.h" 43 #include <AppHardwareApi.h> 44 #include <PeripheralRegs.h> 45 #include <MicroSpecific.h> 46 #include "dev/watchdog.h" 54 #define PRINTF(...) printf(__VA_ARGS__) 59 #define RTIMER_TIMER_ISR_DEV E_AHI_DEVICE_TICK_TIMER 61 static volatile rtimer_clock_t scheduled_time;
62 static volatile uint8_t has_next;
65 rtimer_arch_run_next(uint32 u32DeviceId, uint32 u32ItemBitmap)
69 if(u32DeviceId != RTIMER_TIMER_ISR_DEV) {
73 vAHI_TickTimerIntPendClr();
74 vAHI_TickTimerIntEnable(0);
79 delta = u32AHI_TickTimerRead() - scheduled_time;
80 if(delta >> 28 == 0) {
88 vAHI_TickTimerIntEnable(1);
89 vAHI_TickTimerInterval(scheduled_time);
97 vAHI_TickTimerConfigure(E_AHI_TICK_TIMER_DISABLE);
98 vAHI_TickTimerIntEnable(0);
99 vAHI_TickTimerRegisterCallback(rtimer_arch_run_next);
100 vAHI_TickTimerWrite(0);
101 vAHI_TickTimerConfigure(E_AHI_TICK_TIMER_CONT);
104 vAHI_WakeTimerEnable(WAKEUP_TIMER, FALSE);
105 vAHI_WakeTimerEnable(TICK_TIMER, FALSE);
107 vAHI_WakeTimerStartLarge(TICK_TIMER, 2);
113 rtimer_arch_reinit(rtimer_clock_t sleep_start, rtimer_clock_t sleep_ticks)
117 vAHI_TickTimerConfigure(E_AHI_TICK_TIMER_DISABLE);
118 vAHI_TickTimerIntEnable(0);
120 vAHI_InterruptSetPriority(MICRO_ISR_MASK_TICK_TMR, 15);
121 vAHI_TickTimerRegisterCallback(rtimer_arch_run_next);
123 vAHI_TickTimerWrite(sleep_start + sleep_ticks);
124 vAHI_TickTimerConfigure(E_AHI_TICK_TIMER_CONT);
130 vAHI_TickTimerIntPendClr();
131 vAHI_TickTimerIntEnable(1);
132 vAHI_TickTimerInterval(scheduled_time);
139 return u32AHI_TickTimerRead();
145 PRINTF(
"rtimer_arch_schedule time %lu\n", t);
146 vAHI_TickTimerIntPendClr();
147 vAHI_TickTimerIntEnable(1);
148 vAHI_TickTimerInterval(t);
154 rtimer_arch_time_to_rtimer(
void)
158 return scheduled_time >= now ? scheduled_time - now : 0;
161 return (rtimer_clock_t)-1;
rtimer_clock_t rtimer_arch_now()
Returns the current real-time clock time.
void rtimer_arch_schedule(rtimer_clock_t t)
Schedules an rtimer task to be triggered at time t.
void rtimer_arch_init(void)
We don't need to explicitly initialise anything but this routine is required by the API...
#define RTIMER_NOW()
Get the current clock time.
void rtimer_run_next(void)
Execute the next real-time task and schedule the next task, if any.
void watchdog_start(void)
Starts the WDT in watchdog mode if enabled by user configuration, maximum interval.
Header file for the real-time timer module.
Header file for the Contiki process interface.
int process_nevents(void)
Number of events waiting to be processed.