From 2abde8a068ff74227eb10ea137a5e4febec77f25 Mon Sep 17 00:00:00 2001
From: Orel <37673727+0r31@users.noreply.github.com>
Date: Fri, 20 Nov 2020 01:08:21 +0100
Subject: [PATCH] Fix DAC setDrvPct (#20205)

---
 Marlin/src/feature/dac/dac_mcp4728.cpp | 4 ++--
 Marlin/src/feature/dac/dac_mcp4728.h   | 2 +-
 Marlin/src/feature/dac/stepper_dac.cpp | 6 +++---
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/Marlin/src/feature/dac/dac_mcp4728.cpp b/Marlin/src/feature/dac/dac_mcp4728.cpp
index c7a6370e1..4f33c4e05 100644
--- a/Marlin/src/feature/dac/dac_mcp4728.cpp
+++ b/Marlin/src/feature/dac/dac_mcp4728.cpp
@@ -123,8 +123,8 @@ uint8_t MCP4728::getDrvPct(const uint8_t channel) { return uint8_t(100.0 * dac_v
  * Receives all Drive strengths as 0-100 percent values, updates
  * DAC Values array and calls fastwrite to update the DAC.
  */
-void MCP4728::setDrvPct(xyze_uint8_t &pct) {
-  dac_values *= pct.asFloat() * 0.01f * (DAC_STEPPER_MAX);
+void MCP4728::setDrvPct(xyze_uint_t &pct) {
+  dac_values = pct * (DAC_STEPPER_MAX) * 0.01f;
   fastWrite();
 }
 
diff --git a/Marlin/src/feature/dac/dac_mcp4728.h b/Marlin/src/feature/dac/dac_mcp4728.h
index 571716d48..3a7d5f10f 100644
--- a/Marlin/src/feature/dac/dac_mcp4728.h
+++ b/Marlin/src/feature/dac/dac_mcp4728.h
@@ -76,7 +76,7 @@ public:
   static uint8_t  fastWrite();
   static uint8_t  simpleCommand(const byte simpleCommand);
   static uint8_t  getDrvPct(const uint8_t channel);
-  static void     setDrvPct(xyze_uint8_t &pct);
+  static void     setDrvPct(xyze_uint_t &pct);
 };
 
 extern MCP4728 mcp4728;
diff --git a/Marlin/src/feature/dac/stepper_dac.cpp b/Marlin/src/feature/dac/stepper_dac.cpp
index 5f10b4ccf..5170a3551 100644
--- a/Marlin/src/feature/dac/stepper_dac.cpp
+++ b/Marlin/src/feature/dac/stepper_dac.cpp
@@ -33,7 +33,7 @@
 
 bool dac_present = false;
 constexpr xyze_uint8_t dac_order = DAC_STEPPER_ORDER;
-xyze_uint8_t dac_channel_pct = DAC_MOTOR_CURRENT_DEFAULT;
+xyze_uint_t dac_channel_pct = DAC_MOTOR_CURRENT_DEFAULT;
 
 StepperDAC stepper_dac;
 
@@ -72,8 +72,8 @@ void StepperDAC::set_current_percent(const uint8_t channel, float val) {
   set_current_value(channel, _MIN(val, 100.0f) * (DAC_STEPPER_MAX) / 100.0f);
 }
 
-static float dac_perc(int8_t n) { return 100.0 * mcp4728.getValue(dac_order[n]) * RECIPROCAL(DAC_STEPPER_MAX); }
-static float dac_amps(int8_t n) { return mcp4728.getDrvPct(dac_order[n]) * (DAC_STEPPER_MAX) * 0.125 * RECIPROCAL(DAC_STEPPER_SENSE); }
+static float dac_perc(int8_t n) { return mcp4728.getDrvPct(dac_order[n]); }
+static float dac_amps(int8_t n) { return mcp4728.getValue(dac_order[n]) * 0.125 * RECIPROCAL(DAC_STEPPER_SENSE * 1000); }
 
 uint8_t StepperDAC::get_current_percent(const AxisEnum axis) { return mcp4728.getDrvPct(dac_order[axis]); }
 void StepperDAC::set_current_percents(xyze_uint8_t &pct) {