crccu.h File Reference

Cyclic Redundancy Check Calculation Unit (CRCCU) driver for SAM.

Copyright (c) 2011-2018 Microchip Technology Inc. and its subsidiaries.

#include "compiler.h"

Data Structures
struct	crccu_dscr_type
	CRCCU descriptor type. More...

Macros
#define	CRCCU_TR_CTRL_IEN_DISABLE   (1 << CRCCU_TR_CTRL_IEN_OFFSET)
#define	CRCCU_TR_CTRL_IEN_ENABLE   (0 << CRCCU_TR_CTRL_IEN_OFFSET)
#define	CRCCU_TR_CTRL_IEN_OFFSET   (27)
#define	CRCCU_TR_CTRL_TRWIDTH_BYTE   (0 << CRCCU_TR_CTRL_TRWIDTH_POS)
#define	CRCCU_TR_CTRL_TRWIDTH_HALFWORD   (1 << CRCCU_TR_CTRL_TRWIDTH_POS)
#define	CRCCU_TR_CTRL_TRWIDTH_POS   (24)
#define	CRCCU_TR_CTRL_TRWIDTH_WORD   (2 << CRCCU_TR_CTRL_TRWIDTH_POS)

Typedefs
typedef struct crccu_dscr_type	crccu_dscr_type_t
	CRCCU descriptor type. More...

Functions
void	crccu_configure_descriptor (Crccu *p_crccu, uint32_t ul_crc_dscr_addr)
	Configure CRCCU descriptor. More...
void	crccu_configure_mode (Crccu *p_crccu, uint32_t ul_mode)
	Configure the CRCCU mode. More...
void	crccu_disable_dma (Crccu *p_crccu)
	Disable CRCCU. More...
void	crccu_disable_dma_interrupt (Crccu *p_crccu)
	Disable CRCCU DMA transfer interrupt. More...
void	crccu_disable_error_interrupt (Crccu *p_crccu)
	Disable cyclic redundancy check error interrupt. More...
void	crccu_enable_dma (Crccu *p_crccu)
	Start CRCCU. More...
void	crccu_enable_dma_interrupt (Crccu *p_crccu)
	Enable CRCCU DMA transfer interrupt. More...
void	crccu_enable_error_interrupt (Crccu *p_crccu)
	Enable cyclic redundancy check error interrupt. More...
uint32_t	crccu_get_dma_interrupt_mask (Crccu *p_crccu)
	Get DMA interrupt mask. More...
uint32_t	crccu_get_dma_interrupt_status (Crccu *p_crccu)
	Check if DMA buffer transfer has been terminated. More...
uint32_t	crccu_get_dma_status (Crccu *p_crccu)
	Check if DMA channel is enabled. More...
uint32_t	crccu_get_error_interrupt_mask (Crccu *p_crccu)
	Get check CRC error interrupt mask. More...
uint32_t	crccu_get_error_interrupt_status (Crccu *p_crccu)
	Check if there is a CRC error. More...
uint32_t	crccu_read_crc_value (Crccu *p_crccu)
	Read cyclic redundancy check value. More...
void	crccu_reset (Crccu *p_crccu)
	Reset CRCCU. More...

#define CRCCU_TR_CTRL_IEN_DISABLE   (1 << CRCCU_TR_CTRL_IEN_OFFSET)

#define CRCCU_TR_CTRL_IEN_ENABLE   (0 << CRCCU_TR_CTRL_IEN_OFFSET)

Referenced by compute_crc().

#define CRCCU_TR_CTRL_IEN_OFFSET   (27)

#define CRCCU_TR_CTRL_TRWIDTH_BYTE   (0 << CRCCU_TR_CTRL_TRWIDTH_POS)

Referenced by compute_crc().

#define CRCCU_TR_CTRL_TRWIDTH_HALFWORD   (1 << CRCCU_TR_CTRL_TRWIDTH_POS)

#define CRCCU_TR_CTRL_TRWIDTH_POS   (24)

#define CRCCU_TR_CTRL_TRWIDTH_WORD   (2 << CRCCU_TR_CTRL_TRWIDTH_POS)

typedef struct crccu_dscr_type crccu_dscr_type_t

CRCCU descriptor type.