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tests/periph_rtt: Initialize timer target from current reading

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This avoids false test failures when the RTT retains its old counter
value across reboots/resets.
This commit is contained in:
Joakim Nohlgård 2018-04-11 17:33:44 +02:00
parent 8841486f2e
commit d3d3c1c036
1 changed files with 7 additions and 3 deletions
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10
tests/periph_rtt/main.c
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@ -23,6 +23,7 @@
#include <stdio.h> #include <stdio.h>
#include <stdint.h> #include <stdint.h>
#include <inttypes.h>
#include "cpu.h" #include "cpu.h"
#include "periph_conf.h" #include "periph_conf.h"
@ -51,9 +52,12 @@ int main(void)
puts("Initializing the RTT driver"); puts("Initializing the RTT driver");
rtt_init(); rtt_init();
puts("Setting initial alarm"); uint32_t now = rtt_get_counter();
last = TICKS_TO_WAIT; printf("RTT now: %" PRIu32 "\n", now);
rtt_set_alarm(TICKS_TO_WAIT, cb, 0);
last = (now + TICKS_TO_WAIT) & RTT_MAX_VALUE;
printf("Setting initial alarm to now + 10 s (%" PRIu32 ")\n", last);
rtt_set_alarm(last, cb, 0);
puts("Done setting up the RTT, wait for many Hellos"); puts("Done setting up the RTT, wait for many Hellos");
return 0; return 0;