From 3e66aeff84d4e2a633b9fb5394d25e78bf9cbc5e Mon Sep 17 00:00:00 2001
From: me-no-dev <hristo@espressif.com>
Date: Tue, 18 Dec 2018 22:04:02 +0100
Subject: [PATCH] Handle better 160MHz cpu clock

---
 cores/esp32/esp32-hal-misc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cores/esp32/esp32-hal-misc.c b/cores/esp32/esp32-hal-misc.c
index 642949d7609..5a6e64b9540 100644
--- a/cores/esp32/esp32-hal-misc.c
+++ b/cores/esp32/esp32-hal-misc.c
@@ -66,7 +66,7 @@ uint32_t cpuFrequencyGet(){
 
 unsigned long IRAM_ATTR micros()
 {
-    return (unsigned long) (esp_timer_get_time() * (240 / _cpu_freq_mhz));
+    return (unsigned long) ((esp_timer_get_time() * 240) / _cpu_freq_mhz);
 }
 
 unsigned long IRAM_ATTR millis()
@@ -76,7 +76,7 @@ unsigned long IRAM_ATTR millis()
 
 void delay(uint32_t ms)
 {
-    vTaskDelay(ms / portTICK_PERIOD_MS / (240 / _cpu_freq_mhz));
+    vTaskDelay((ms * _cpu_freq_mhz) / (portTICK_PERIOD_MS * 240));
 }
 
 void IRAM_ATTR delayMicroseconds(uint32_t us)