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apps/examples: Add test of edges counting at capture

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Description: Add test of the function of counting cap edges

Signed-off-by: zhangkai25 <zhangkai25@xiaomi.com>
This commit is contained in:
zhangkai25 2024-04-25 14:16:44 +08:00 committed by Xiang Xiao
parent 4e3f77d884
commit 39d053ef74
1 changed files with 19 additions and 0 deletions
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19
examples/capture/cap_main.c
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@ -213,6 +213,7 @@ int main(int argc, FAR char *argv[])
{ {
int8_t dutycycle; int8_t dutycycle;
int32_t frequence; int32_t frequence;
int32_t edges;
int fd; int fd;
int exitval = EXIT_SUCCESS; int exitval = EXIT_SUCCESS;
int ret; int ret;
@ -290,6 +291,24 @@ int main(int argc, FAR char *argv[])
printf("pwm frequence: %"PRId32" Hz \n", frequence); printf("pwm frequence: %"PRId32" Hz \n", frequence);
} }
/* Get the edges data using the ioctl */
ret = ioctl(fd, CAPIOC_EDGES,
(unsigned long)((uintptr_t)&edges));
if (ret < 0)
{
printf("cap_main: ioctl(CAPIOC_EDGES) failed: %d\n", errno);
exitval = EXIT_FAILURE;
goto errout_with_dev;
}
/* Print the sample data on successful return */
else
{
printf("pwm edges counting: %"PRId32" \n", edges);
}
/* Delay a little bit */ /* Delay a little bit */
usleep(g_capexample.delay * 1000); usleep(g_capexample.delay * 1000);