From 20497335c27983a78cf3e829ce2452e3df88879a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20G=C3=B6ttgens?= <tgoettgens@gmail.com>
Date: Thu, 30 Dec 2021 22:20:15 +0100
Subject: [PATCH] stop old chip from crashing

---
 src/sleep.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/sleep.cpp b/src/sleep.cpp
index 558dbf1d4..998645dcd 100644
--- a/src/sleep.cpp
+++ b/src/sleep.cpp
@@ -65,7 +65,11 @@ void setCPUFast(bool on)
         return;
     }
 
-    setCpuFrequencyMhz(on ? 240 : 80);
+    // The Heltec LORA32 V1 runs at 26 MHz base frequency and doesn't react well to switching to 80 MHz...
+    #ifndef ARDUINO_HELTEC_WIFI_LORA_32
+        setCpuFrequencyMhz(on ? 240 : 80);
+    #endif
+    
 #endif
 }