From 1565347f6fa7328705c215aaf9884b215253fce2 Mon Sep 17 00:00:00 2001
From: Brian Bulkowski <brian@bulkowski.org>
Date: Mon, 21 Sep 2020 19:12:15 -0700
Subject: [PATCH] Recode another delay in an esp32 specific fashion that should
 be faster

---
 components/FastLED-idf/hal/esp32-hal-misc.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/components/FastLED-idf/hal/esp32-hal-misc.c b/components/FastLED-idf/hal/esp32-hal-misc.c
index bae5a75..56a98a7 100644
--- a/components/FastLED-idf/hal/esp32-hal-misc.c
+++ b/components/FastLED-idf/hal/esp32-hal-misc.c
@@ -153,17 +153,11 @@ void delay(uint32_t ms)
 
 void IRAM_ATTR delayMicroseconds(uint32_t us)
 {
-    uint32_t m = micros();
+    uint64_t now = esp_timer_get_time();
     if(us){
-        uint32_t e = (m + us);
-        if(m > e){ //overflow
-            while(micros() > e){
-                NOP();
-            }
-        }
-        while(micros() < e){
+        do {
             NOP();
-        }
+        } while ((esp_timer_get_time() - now) < us);
     }
 }