Initial commit

Clean_TMC2209/lib/tmc/helpers/CRC.h

@@ -0,0 +1,25 @@
+/*******************************************************************************
+* Copyright © 2017 TRINAMIC Motion Control GmbH & Co. KG
+* (now owned by Analog Devices Inc.),
+*
+* Copyright © 2023 Analog Devices Inc. All Rights Reserved. This software is
+* proprietary & confidential to Analog Devices, Inc. and its licensors.
+*******************************************************************************/
+
+
+#ifndef TMC_HELPERS_CRC_H_
+#define TMC_HELPERS_CRC_H_
+
+	#include "Types.h"
+
+	// Amount of CRC tables available
+	// Each table takes ~260 bytes (257 bytes, one bool and structure padding)
+	#define CRC_TABLE_COUNT 2
+
+	uint8_t tmc_fillCRC8Table(uint8_t polynomial, bool isReflected, uint8_t index);
+	uint8_t tmc_CRC8(uint8_t *data, uint32_t bytes, uint8_t index);
+
+	uint8_t tmc_tableGetPolynomial(uint8_t index);
+	bool  tmc_tableIsReflected(uint8_t index);
+
+#endif /* TMC_HELPERS_CRC_H_ */