From f01b0f27722e9e5e6d8e1e7b4c3ed53267525645 Mon Sep 17 00:00:00 2001
From: richardclli <richard.li@ces.hk>
Date: Sat, 8 Apr 2023 18:17:40 +0800
Subject: [PATCH] fix(AFHDS3): Incorrect channel scaling (#3449)

* Fixed IRM301/FRM303 channels scaling problem.

* Add back the remarks for calculation.
---
 radio/src/pulses/afhds3.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/radio/src/pulses/afhds3.cpp b/radio/src/pulses/afhds3.cpp
index 911ba5340dc..cc2339806e0 100644
--- a/radio/src/pulses/afhds3.cpp
+++ b/radio/src/pulses/afhds3.cpp
@@ -811,7 +811,15 @@ void ProtoState::applyConfigFromModel()
 
 inline int16_t ProtoState::convert(int channelValue)
 {
-  return ::limit<int16_t>(AFHDS3_FAILSAFE_MIN, channelValue * 14.65, AFHDS3_FAILSAFE_MAX);
+  //pulseValue = limit<uint16_t>(0, 988 + ((channelValue + 1024) / 2), 0xfff);
+  //988 - 750 = 238
+  //238 * 20 = 4760
+  //2250 - 2012 = 238
+  //238 * 20 = 4760
+  // 988   ---- 2012
+  //-10240 ---- 10240
+  //-1024  ---- 1024
+  return ::limit<int16_t>(AFHDS3_FAILSAFE_MIN, channelValue * 10, AFHDS3_FAILSAFE_MAX);
 }
 
 uint8_t ProtoState::setFailSafe(int16_t* target, uint8_t rfchannelsCount )