From df78f5109c86cd2a1e9314138959738d1a33f039 Mon Sep 17 00:00:00 2001
From: Josh Stewart <josh@noisymime.org>
Date: Sun, 7 Apr 2024 15:15:35 +1000
Subject: [PATCH] Disable the OFF Open Load pull-down current on MC33810 init

---
 speeduino/acc_mc33810.cpp | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/speeduino/acc_mc33810.cpp b/speeduino/acc_mc33810.cpp
index a5c09ab7..9661a0c4 100644
--- a/speeduino/acc_mc33810.cpp
+++ b/speeduino/acc_mc33810.cpp
@@ -44,7 +44,7 @@ void initMC33810(void)
 
     SPI.begin();
     //These are the SPI settings per the datasheet
-	  SPI.beginTransaction(SPISettings(6000000, MSBFIRST, SPI_MODE0)); 
+	SPI.beginTransaction(SPISettings(6000000, MSBFIRST, SPI_MODE0)); 
 
     //Set the ignition outputs to GPGD mode
     /*
@@ -62,5 +62,22 @@ void initMC33810(void)
     MC33810_2_ACTIVE();
     SPI.transfer16(cmd);
     MC33810_2_INACTIVE();
+
+    //Disable the Open Load pull-down current sync (See page 31 of MC33810 DS)
+    /*
+    0010 = LSD Fault Command
+    1000 = LSD Fault operation is Shutdown (Default)
+    1111 = Open load detection fault when active (Default)
+    0000 = Disable open load detection when off (Changed from 1111 to 0000)
+    */
+    cmd = 0b0010100011110000;
+    //IC1
+    MC33810_1_ACTIVE();
+    SPI.transfer16(cmd);
+    MC33810_1_INACTIVE();
+    //IC2
+    MC33810_2_ACTIVE();
+    SPI.transfer16(cmd);
+    MC33810_2_INACTIVE();
     
 }
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