From 220949f0fa26e08e45f502e3923ea65ba9c378c4 Mon Sep 17 00:00:00 2001
From: rusefi <arro239+rusefi@gmail.com>
Date: Tue, 23 Jan 2018 13:04:30 -0500
Subject: [PATCH] docs

---
 firmware/hw_layer/hardware.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/firmware/hw_layer/hardware.cpp b/firmware/hw_layer/hardware.cpp
index 409633c920..ee0fdf6834 100644
--- a/firmware/hw_layer/hardware.cpp
+++ b/firmware/hw_layer/hardware.cpp
@@ -59,6 +59,16 @@ extern bool hasFirmwareErrorFlag;
 
 static mutex_t spiMtx;
 
+/**
+ * this depends on patch to chdebug.c
++extern int maxNesting;
+   ch.dbg.isr_cnt++;
++  if (ch.dbg.isr_cnt > maxNesting)
++          maxNesting = ch.dbg.isr_cnt;
+   port_unlock_from_isr();
+ *
+ */
+// todo: rename this to 'rusefiMaxISRNesting' one day
 int maxNesting = 0;
 
 #if HAL_USE_SPI || defined(__DOXYGEN__)