Merge pull request #9229 from timchinowsky/rp2040-time_ns-precision

add subticks to RP2040 port_get_raw_ticks
adafruit · May 13, 2024 · d857738 · d857738
2 parents aea70d6 + 1a16e6a
commit d857738
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/ports/raspberrypi/supervisor/port.c b/ports/raspberrypi/supervisor/port.c
@@ -267,6 +267,9 @@ static volatile bool _woken_up;
 
 uint64_t port_get_raw_ticks(uint8_t *subticks) {
     uint64_t microseconds = time_us_64();
+    if (subticks != NULL) {
+        *subticks = (uint8_t)(((microseconds % 1000000) % 977) / 31);
+    }
     return 1024 * (microseconds / 1000000) + (microseconds % 1000000) / 977;
 }