Redid formula for calculating subticks

DavePutz · web-flow · commit ec7a3feeba91 · 2020-06-09T10:08:49.000-05:00
changed subticks calculation to give a range from 0 to 32767.
diff --git a/ports/esp32s2/supervisor/port.c b/ports/esp32s2/supervisor/port.c
@@ -119,11 +119,11 @@ uint64_t port_get_raw_ticks(uint8_t* subticks) {
     struct timeval tv_now;
     gettimeofday(&tv_now, NULL);
     // convert usec back to ticks
-    uint64_t all_subticks = (uint64_t)tv_now.tv_usec / 1024;
+    uint64_t all_subticks = (uint64_t)(tv_now.tv_usec * 2) / 71;
     if (subticks != NULL) {
         *subticks = all_subticks % 32;
     }
-    return (uint64_t)tv_now.tv_sec * 1024L + all_subticks;
+    return (uint64_t)tv_now.tv_sec * 1024L + all_subticks / 32;
 }
 
 // Enable 1/1024 second tick.

Original file line number	Diff line number	Diff line change
`@@ -119,11 +119,11 @@ uint64_t port_get_raw_ticks(uint8_t* subticks) {`
`119`	`119`	`struct timeval tv_now;`
`120`	`120`	`gettimeofday(&tv_now, NULL);`
`121`	`121`	`// convert usec back to ticks`
`122`		`- uint64_t all_subticks = (uint64_t)tv_now.tv_usec / 1024;`
	`122`	`+ uint64_t all_subticks = (uint64_t)(tv_now.tv_usec * 2) / 71;`
`123`	`123`	`if (subticks != NULL) {`
`124`	`124`	`*subticks = all_subticks % 32;`
`125`	`125`	`}`
`126`		`- return (uint64_t)tv_now.tv_sec * 1024L + all_subticks;`
	`126`	`+ return (uint64_t)tv_now.tv_sec * 1024L + all_subticks / 32;`
`127`	`127`	`}`
`128`	`128`
`129`	`129`	`// Enable 1/1024 second tick.`