From 36e3da807c0d1edb17b80474524af37267a3cb35 Mon Sep 17 00:00:00 2001
From: Richard Unger <richard.unger@nexum.com>
Date: Fri, 26 Jan 2024 21:55:52 +0100
Subject: [PATCH] fix floating point constant incorrectly converted to int

---
 src/common/foc_utils.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/common/foc_utils.cpp b/src/common/foc_utils.cpp
index fa937d15..c938d363 100644
--- a/src/common/foc_utils.cpp
+++ b/src/common/foc_utils.cpp
@@ -9,7 +9,7 @@ __attribute__((weak)) float _sin(float a){
   // 16 bit precision on sine value, 8 bit fractional value for interpolation, 6bit LUT size
   // resulting precision compared to stdlib sine is 0.00006480 (RMS difference in range -PI,PI for 3217 steps)
   static uint16_t sine_array[65] = {0,804,1608,2411,3212,4011,4808,5602,6393,7180,7962,8740,9512,10279,11039,11793,12540,13279,14010,14733,15447,16151,16846,17531,18205,18868,19520,20160,20788,21403,22006,22595,23170,23732,24279,24812,25330,25833,26320,26791,27246,27684,28106,28511,28899,29269,29622,29957,30274,30572,30853,31114,31357,31581,31786,31972,32138,32286,32413,32522,32610,32679,32729,32758,32768};
-  unsigned int i = (unsigned int)(a * (64*4*256/_2PI));
+  unsigned int i = (unsigned int)(a * (64*4*256.0f/_2PI));
   int t1, t2, frac = i & 0xff;
   i = (i >> 8) & 0xff;
   if (i < 64) {