From 1f8a303faf5ee84435980edaab5ff5452b23301d Mon Sep 17 00:00:00 2001
From: Theo Arends <11044339+arendst@users.noreply.github.com>
Date: Tue, 27 Dec 2022 17:57:21 +0100
Subject: [PATCH] Add SO177 for debugging (#17500)

---
 tasmota/tasmota.ino | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/tasmota/tasmota.ino b/tasmota/tasmota.ino
index 67bf25cd5..b494ed303 100644
--- a/tasmota/tasmota.ino
+++ b/tasmota/tasmota.ino
@@ -688,10 +688,18 @@ void BacklogLoop(void) {
 void SleepDelay(uint32_t mseconds) {
   if (!TasmotaGlobal.backlog_nodelay && mseconds) {
     uint32_t wait = millis() + mseconds;
-    while (!TimeReached(wait) && !Serial.available()) {  // We need to service serial buffer ASAP as otherwise we get uart buffer overrun
-      XdrvXsnsCall(FUNC_SLEEP_LOOP);  // Main purpose is reacting ASAP on serial data availability or interrupt handling (ADE7880)
-      delay(1);
+
+    if (Settings->flag6.spare31) {       // SetOption177 - (Debug) Disable FUNC_SLEEP_LOOP
+      while (!TimeReached(wait) && !Serial.available()) {  // We need to service serial buffer ASAP as otherwise we get uart buffer overrun
+        delay(1);
+      }
+    } else {
+      while (!TimeReached(wait) && !Serial.available()) {  // We need to service serial buffer ASAP as otherwise we get uart buffer overrun
+        XdrvXsnsCall(FUNC_SLEEP_LOOP);  // Main purpose is reacting ASAP on serial data availability or interrupt handling (ADE7880)
+        delay(1);
+      }
     }
+
   } else {
     delay(0);
   }