SCR

Core/Inc/DWT_Delay.h

+/*
+ * File: DWT_Delay.h
+ * Driver Name: [[ DWT Delay ]]
+ * SW Layer:   ECUAL
+ * Created on: Jun 28, 2020
+ * Author:     Khaled Magdy
+ * -------------------------------------------
+ * For More Information, Tutorials, etc.
+ * Visit Website: www.DeepBlueMbedded.com
+ *
+ */
+
+#ifndef DWT_DELAY_H_
+#define DWT_DELAY_H_
+
+#include "stm32f4xx_hal.h"
+
+
+uint32_t DWT_Delay_Init(void);
+
+
+// This Function Provides Delay In Microseconds Using DWT
+__STATIC_INLINE void DWT_Delay_us(volatile uint32_t au32_microseconds)
+{
+  uint32_t au32_initial_ticks = DWT->CYCCNT;
+  uint32_t au32_ticks = (HAL_RCC_GetHCLKFreq() / 1000000);
+  au32_microseconds *= au32_ticks;
+  while ((DWT->CYCCNT - au32_initial_ticks) < au32_microseconds-au32_ticks);
+}
+
+// This Function Provides Delay In Milliseconds Using DWT
+__STATIC_INLINE void DWT_Delay_ms(volatile uint32_t au32_milliseconds)
+{
+  uint32_t au32_initial_ticks = DWT->CYCCNT;
+  uint32_t au32_ticks = (HAL_RCC_GetHCLKFreq() / 1000);
+  au32_milliseconds *= au32_ticks;
+  while ((DWT->CYCCNT - au32_initial_ticks) < au32_milliseconds);
+}
+
+#endif /* DWT_DELAY_H_ */