56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
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/*!
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\file gd32f4xx_crc.h
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\brief definitions for the CRC
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*/
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/*
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Copyright (C) 2016 GigaDevice
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2016-08-15, V1.0.0, firmware for GD32F4xx
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*/
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#ifndef GD32F4XX_CRC_H
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#define GD32F4XX_CRC_H
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#include "gd32f4xx.h"
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/* CRC definitions */
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#define CRC CRC_BASE
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/* registers definitions */
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#define CRC_DATA REG32(CRC + 0x00U) /*!< CRC data register */
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#define CRC_FDATA REG32(CRC + 0x04U) /*!< CRC free data register */
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#define CRC_CTL REG32(CRC + 0x08U) /*!< CRC control register */
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/* bits definitions */
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/* CRC_DATA */
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#define CRC_DATA_DATA BITS(0,31) /*!< CRC calculation result bits */
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/* CRC_FDATA */
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#define CRC_FDATA_FDATA BITS(0,7) /*!< CRC free data bits */
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/* CRC_CTL */
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#define CRC_CTL_RST BIT(0) /*!< CRC reset CRC_DATA register bit */
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/* function declarations */
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/* deinit CRC calculation unit */
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void crc_deinit(void);
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/* reset data register to the value of initializaiton data register */
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void crc_data_register_reset(void);
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/* read the data register */
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uint32_t crc_data_register_read(void);
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/* read the free data register */
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uint8_t crc_free_data_register_read(void);
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/* write the free data register */
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void crc_free_data_register_write(uint8_t free_data);
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/* CRC calculate a 32-bit data */
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uint32_t crc_single_data_calculate(uint32_t sdata);
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/* CRC calculate a 32-bit data array */
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uint32_t crc_block_data_calculate(uint32_t array[], uint32_t size);
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#endif /* GD32F4XX_CRC_H */
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