Tune in the timer divider for tip control to make PWM less audible

Ralim · Jun 18, 2023 · 6a50743 · 6a50743
1 parent 341c3f6
commit 6a50743
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/source/Core/BSP/Miniware/Setup.cpp b/source/Core/BSP/Miniware/Setup.cpp
@@ -306,8 +306,12 @@ static void MX_TIP_CONTROL_TIMER_Init(void) {
   TIM_MasterConfigTypeDef sMasterConfig;
   TIM_OC_InitTypeDef      sConfigOC;
 
-  htimTip.Instance               = TIP_CONTROL_TIMER;
-  htimTip.Init.Prescaler         = 3;
+  htimTip.Instance = TIP_CONTROL_TIMER;
+#ifdef TIP_HAS_DIRECT_PWM
+  htimTip.Init.Prescaler = 100;
+#else
+  htimTip.Init.Prescaler = 3;
+#endif
   htimTip.Init.CounterMode       = TIM_COUNTERMODE_UP;
   htimTip.Init.Period            = 255;                           // 5 Khz PWM freq
   htimTip.Init.ClockDivision     = TIM_CLOCKDIVISION_DIV4;        // 4mhz before div