From 9a6406bd81cc426f2914a3032883201abc84001a Mon Sep 17 00:00:00 2001
From: rusefillc <sdfsdfqsf2334234234>
Date: Thu, 12 Oct 2023 10:33:56 -0400
Subject: [PATCH] DAC with Lua #5601

---
 firmware/hw_layer/drivers/dac.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/firmware/hw_layer/drivers/dac.cpp b/firmware/hw_layer/drivers/dac.cpp
index ceddcaf6f8..cdf353a471 100644
--- a/firmware/hw_layer/drivers/dac.cpp
+++ b/firmware/hw_layer/drivers/dac.cpp
@@ -40,15 +40,20 @@ static Dac dacs[] {
 };
 
 void initDac() {
-    dacs[0].Start(dacConfig);
-    dacs[1].Start(dacConfig);
+    bool dacIsUsed = false;
     for (size_t i = 0;i<DAC_OUTPUT_COUNT;i++) {
         Gpio pin = engineConfiguration->dacOutputPins[i];
         if (isBrainPinValid(pin)) {
             // setting up the output pin as analog as suggested by the Reference Manual.
             efiSetPadMode("dac", pin, PAL_MODE_INPUT_ANALOG);
+            dacIsUsed = true;
         }
     }
+    if (dacIsUsed) {
+        // DAC peripheral changes associated pin behaviour regardless of actual pin mode
+        dacs[0].Start(dacConfig);
+        dacs[1].Start(dacConfig);
+    }
 }
 
 void setDacVoltage(int channel, float voltage) {