void
vBSP430uptimeStart_ni (void)
{
xBSP430uptimeTIMER_ = hBSP430timerLookup(BSP430_UPTIME_TIMER_PERIPH_HANDLE);
vBSP430timerSafeCounterInitialize_ni(xBSP430uptimeTIMER_->hpl);
xBSP430uptimeTIMER_->hpl->ctl = 0;
vBSP430timerResetCounter_ni(xBSP430uptimeTIMER_);
xBSP430uptimeTIMER_->hpl->ctl =
((TASSEL0 | TASSEL1) & (BSP430_UPTIME_TASSEL))
| ((ID0 | ID1) & (BSP430_UPTIME_DIVIDING_SHIFT * ID0))
| TACLR | TAIE;
vBSP430timerInferHints_ni(xBSP430uptimeTIMER_);
#if (configBSP430_UPTIME_DELAY - 0)
{
hBSP430timerAlarm delay_alarm;
delayAlarm_.flags = 0;
delay_alarm = hBSP430timerAlarmInitialize(&delayAlarm_.alarm, BSP430_UPTIME_TIMER_PERIPH_HANDLE, BSP430_UPTIME_DELAY_CCIDX, delayCallback_);
while (H_delayAlarm != delay_alarm) {
/* Hang if the alarm cannot be used. */
}
delayAlarm_.flags = DELAY_ALARM_VALID | DELAY_ALARM_ENABLED | DELAY_ALARM_TIMER_ACTIVE;
}
#endif /* configBSP430_UPTIME_DELAY */
vBSP430uptimeResume_ni();
}
void main ()
{
volatile sBSP430hplPORTIE * b0hpl;
hBSP430halTIMER b0timer_hal;
int b0pin = iBSP430portBitPosition(BSP430_PLATFORM_BUTTON0_PORT_BIT);
struct sBSP430timerPulseCapture pulsecap_state;
hBSP430timerPulseCapture pulsecap;
unsigned long freq_Hz;
int rc;
vBSP430platformInitialize_ni();
(void)iBSP430consoleInitialize();
cprintf("\npulsecap " __DATE__ " " __TIME__ "\n");
cprintf("There's supposed to be a button at %s.%u\n",
xBSP430portName(BSP430_PLATFORM_BUTTON0_PORT_PERIPH_HANDLE),
b0pin);
b0hpl = xBSP430hplLookupPORTIE(BSP430_PLATFORM_BUTTON0_PORT_PERIPH_HANDLE);
if (NULL == b0hpl) {
cprintf("Guess it's not there. Never mind.\n");
return;
}
cprintf("Found it at %p. Now looking for timer HAL.\n", b0hpl);
b0timer_hal = hBSP430timerLookup(BUTTON0_TIMER_PERIPH_HANDLE);
if (NULL == b0timer_hal) {
cprintf("That's not there, though. Going away now.\n");
return;
}
vBSP430timerResetCounter_ni(b0timer_hal);
b0timer_hal->hpl->ctl = TASSEL__SMCLK | MC__CONTINOUS | TBCLR | TBIE;
vBSP430timerInferHints_ni(b0timer_hal);
freq_Hz = ulBSP430timerFrequency_Hz_ni(BUTTON0_TIMER_PERIPH_HANDLE);
cprintf("Cool, we're good to go with a %lu Hz timer at %p, now %lu.\n",
freq_Hz, b0timer_hal, ulBSP430timerCounter_ni(b0timer_hal, NULL));
/* Configure the port for its primary peripheral function */
b0hpl->dir &= ~BSP430_PLATFORM_BUTTON0_PORT_BIT;
BSP430_PORT_HPL_SET_REN(b0hpl, BSP430_PLATFORM_BUTTON0_PORT_BIT, BSP430_PORT_REN_PULL_UP);
BSP430_PORT_HPL_SET_SEL(b0hpl, BSP430_PLATFORM_BUTTON0_PORT_BIT, 1);
pulsecap = hBSP430timerPulseCaptureInitialize(&pulsecap_state,
BUTTON0_TIMER_PERIPH_HANDLE,
BUTTON0_TIMER_CCIDX,
BUTTON0_TIMER_CCIS,
BSP430_TIMER_PULSECAP_START_CALLBACK | BSP430_TIMER_PULSECAP_END_CALLBACK,
pulsecap_callback_ni);
if (NULL == pulsecap) {
cprintf("Sorry, pulsecap initialization failed\n");
return;
}
cprintf("%s.%u%c cctl %04x; pulsecap %p flags %04x\n",
xBSP430timerName(BUTTON0_TIMER_PERIPH_HANDLE),
BUTTON0_TIMER_CCIDX,
'A' + (BUTTON0_TIMER_CCIS / CCIS0),
b0timer_hal->hpl->cctl[BUTTON0_TIMER_CCIDX],
pulsecap, pulsecap->flags_ni);
/* Need to enable interrupts so timer overflow events are properly
* acknowledged */
BSP430_CORE_ENABLE_INTERRUPT();
rc = iBSP430timerPulseCaptureEnable(pulsecap);
cprintf("Enable got %d\n", rc);
rc = iBSP430timerPulseCaptureActivate(pulsecap);
cprintf("Activate got %d\n", rc);
while (1) {
unsigned int flags;
unsigned long pulseWidth_tt;
unsigned int overflows;
unsigned int activehighs;
BSP430_CORE_DISABLE_INTERRUPT();
do {
flags = pulsecap_state.flags_ni;
pulseWidth_tt = pulseWidth_tt_v;
overflows = overflows_v;
activehighs = activehighs_v;
} while (0);
BSP430_CORE_ENABLE_INTERRUPT();
cprintf("Timer %lu flags %04x ; %u over %u activehigh\n",
ulBSP430timerCounter(b0timer_hal, NULL),
flags, overflows, activehighs);
if (0 != pulseWidth_tt) {
cprintf("\tNew width: %lu ticks = %lu us\n", pulseWidth_tt,
(unsigned long)((1000ULL * pulseWidth_tt) / (freq_Hz / 1000UL)));
pulseWidth_tt = 0;
}
BSP430_CORE_DELAY_CYCLES(BSP430_CLOCK_NOMINAL_MCLK_HZ);
}
}
