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tests/periph_rtt: make wakeups more periodic

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This commit is contained in:
Hauke Petersen 2017-04-03 18:17:13 +02:00
parent 469acf7db8
commit 3943d08b46
1 changed files with 7 additions and 5 deletions
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12
tests/periph_rtt/main.c
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@ -30,18 +30,19 @@
#define TICKS_TO_WAIT (10 * RTT_FREQUENCY) #define TICKS_TO_WAIT (10 * RTT_FREQUENCY)
static volatile uint32_t last;
void cb(void *arg) void cb(void *arg)
{ {
(void)arg; (void)arg;
uint32_t now;
now = rtt_get_counter() + TICKS_TO_WAIT; last += TICKS_TO_WAIT;
now = (now > RTT_MAX_VALUE) ? now - RTT_MAX_VALUE : now; last &= RTT_MAX_VALUE;
rtt_set_alarm(now, cb, 0); rtt_set_alarm(last, cb, 0);
puts("Hello"); puts("Hello");
} }
int main(void) int main(void)
{ {
puts("\nRIOT RTT low-level driver test"); puts("\nRIOT RTT low-level driver test");
@ -51,6 +52,7 @@ int main(void)
rtt_init(); rtt_init();
puts("Setting initial alarm"); puts("Setting initial alarm");
last = TICKS_TO_WAIT;
rtt_set_alarm(TICKS_TO_WAIT, cb, 0); rtt_set_alarm(TICKS_TO_WAIT, cb, 0);
puts("Done setting up the RTT, wait for many Hellos"); puts("Done setting up the RTT, wait for many Hellos");