TMC4671 make ext enc timer ARR a define

Author: Ultrawipf

Firmware/FFBoard/UserExtensions/Inc/TMC4671.h

@@ -53,7 +53,9 @@ extern TIM_HandleTypeDef TIM_TMC;
 #ifndef TMC4671_ITUNE_CUTOFF
 #define TMC4671_ITUNE_CUTOFF 0.04
 #endif
-
+#ifndef TIM_TMC_ARR
+#define TIM_TMC_ARR 200
+#endif
 
 
 enum class TMC_ControlState : uint32_t {uninitialized,waitPower,Shutdown,Running,EncoderInit,EncoderFinished,HardError,OverTemp,IndexSearch,FullCalibration,ExternalEncoderInit,Pidautotune};

Firmware/FFBoard/UserExtensions/Src/TMC4671.cpp

@@ -3131,7 +3131,7 @@ void TMC4671::setUpExtEncTimer(){
 		extEncUpdater = std::make_unique<TMC_ExternalEncoderUpdateThread>(this);
 	// Setup timer
 	this->externalEncoderTimer = &TIM_TMC;
-	this->externalEncoderTimer->Instance->ARR = 200; // 200 = 5khz = 5 tmc cycles, 250 = 4khz, 240 = 6 tmc cycles
+	this->externalEncoderTimer->Instance->ARR = TIM_TMC_ARR; // 200 = 5khz = 5 tmc cycles, 250 = 4khz, 240 = 6 tmc cycles
 	this->externalEncoderTimer->Instance->PSC = ((TIM_TMC_BCLK)/1000000) +1; // 1µs ticks
 	this->externalEncoderTimer->Instance->CR1 = 1;
 	HAL_TIM_Base_Start_IT(this->externalEncoderTimer);