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

tannewt · web-flow · commit d8577380c74d · 2024-05-13T15:09:49.000-07:00
add subticks to RP2040 port_get_raw_ticks
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;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -267,6 +267,9 @@ static volatile bool _woken_up;`
`267`	`267`
`268`	`268`	`uint64_t port_get_raw_ticks(uint8_t *subticks) {`
`269`	`269`	`uint64_t microseconds = time_us_64();`
	`270`	`+ if (subticks != NULL) {`
	`271`	`+ *subticks = (uint8_t)(((microseconds % 1000000) % 977) / 31);`
	`272`	`+ }`
`270`	`273`	`return 1024 * (microseconds / 1000000) + (microseconds % 1000000) / 977;`
`271`	`274`	`}`
`272`	`275`