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3rd-part/dwt_delay/dwt_delay.h

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+/*
+ * Simple microseconds delay routine, utilizing ARM's DWT
+ * (Data Watchpoint and Trace Unit) and HAL library.
+ * Intended to use with gcc compiler, but I hope it can be used
+ * with any other C compiler across the Universe (provided that
+ * ARM and CMSIS already invented) :)
+ * Max K
+ *
+ *
+ * This file is part of DWT_Delay package.
+ * DWT_Delay is free software: you can redistribute it and/or modify it
+ * under the terms of the MIT License.
+ */
+
+#if defined(__CORTEX_M) && __CORTEX_M < 3U
+#warning DWT_Delay in useless in this project since DWT unit is not accessible \
+         by processor on Cortex-M0/0+/1 cores. You may want to implement microdelays \
+         with hardware timer.
+#endif
+
+#ifndef INC_DWT_DELAY_H_
+#define INC_DWT_DELAY_H_
+
+#include <stdint.h>
+
+#define DWT_DELAY_NEWBIE 0
+
+void DWT_Init(void);
+void DWT_Delay(uint32_t us);
+
+#endif /* INC_DWT_DELAY_H_ */