From: Joey Castillo <joeycastillo@utexas.edu>
Date: Mon, 4 Jul 2022 16:23:09 +0000 (-0500)
Subject: reduce flicker of LED by default
X-Git-Url: https://git.earman.xyz/?a=commitdiff_plain;h=5b650b9efeedd73c770149dd3fd6d92189c0a701;p=sensor-watch.git

reduce flicker of LED by default
---

diff --git a/watch-library/hardware/watch/watch_private.c b/watch-library/hardware/watch/watch_private.c
index e4a0392..4b010d4 100644
--- a/watch-library/hardware/watch/watch_private.c
+++ b/watch-library/hardware/watch/watch_private.c
@@ -142,7 +142,7 @@ void _watch_enable_tcc(void) {
     #endif
     // The buzzer will set the period depending on the tone it wants to play, but we have to set some period here to
     // get the LED working. Almost any period will do, tho it should be below 20000 (i.e. 50 Hz) to avoid flickering.
-    hri_tcc_write_PER_reg(TCC0, 4096);
+    hri_tcc_write_PER_reg(TCC0, 1024);
     // Set the duty cycle of all pins to 0: LED's off, buzzer not buzzing.
     hri_tcc_write_CC_reg(TCC0, WATCH_BUZZER_TCC_CHANNEL, 0);
     hri_tcc_write_CC_reg(TCC0, WATCH_RED_TCC_CHANNEL, 0);