* TIM_ex: fix possible div by 0

PWM.c

@@ -17,7 +17,7 @@ HAL_StatusTypeDef NONNULL__ set_PWM_Duty_Scaled(const TIM_HandleTypeDef * const
 {
 	uint32_t tmp;
 
-	if (!scale)			{ return HAL_ERROR; }	// Division by 0
+	if (!scale)			{ return HAL_ERROR; }	// Avoid div by 0
 
 	if (duty >= scale)	{ tmp = pTim->Instance->ARR + 1; }	// +1 To achieve real 100% duty cycle
 	else if (duty == 0)	{ tmp = 0; }

ReleaseNotes.md

@@ -22,6 +22,7 @@ SOFTWARE.
 
 ## v1.5
 
+* TIM_ex: fix possible div by 0
 * ADC_ex: Fixes for compensation when calibrated values differ from VDD_VALUE
 * ADC_ex: Added customizable pre-processing symbols to allow better ADC configuration when needed (ADC_RESOLUTION, Def_VAlim, Def_VCal, Def_VBatFactor)
 * ADC_ex: Few more families addressed (whole F G L ranges, H7, U5, WB, WL / missing C0, MP1, H5, WBA)

TIM_ex.c

@@ -181,6 +181,8 @@ HAL_StatusTypeDef NONNULL__ init_TIM_Base(TIM_HandleTypeDef * const pTim, const
 
 HAL_StatusTypeDef NONNULL__ set_TIM_Freq(TIM_HandleTypeDef * const pTim, const uint32_t freq)
 {
+	if (!freq)	{ return HAL_ERROR; }		// Avoid div by 0
+
 	const uint32_t max_prescaler = 0xFFFF;	// Prescaler is 16b no redeeming timer instance
 	uint32_t max_period = 0xFFFF;			// Max period for 16b timers (most common)
 	uint64_t period;						// For 32b timers, period needs to be 64b large for calculations
@@ -213,6 +215,8 @@ HAL_StatusTypeDef NONNULL__ set_TIM_Freq(TIM_HandleTypeDef * const pTim, const u
 
 HAL_StatusTypeDef NONNULL__ set_TIM_Tick_Freq(TIM_HandleTypeDef * const pTim, const uint32_t freq)
 {
+	if (!freq)	{ return HAL_ERROR; }		// Avoid div by 0
+
 	if (	(pTim->Instance == TIM2)
 	#if defined(TIM5)
 		||	(pTim->Instance == TIM5)