55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/*
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* File : bxcan.h
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2015, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2015-05-14 aubrcool@qq.com first version
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*/
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#ifndef BXCAN_H_
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#define BXCAN_H_
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/* CAN Master Control Register bits */
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#define MCR_DBF ((uint32_t)0x00010000) /* software master reset */
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/* CAN Mailbox Transmit Request */
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#define TMIDxR_TXRQ ((uint32_t)0x00000001) /* Transmit mailbox request */
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/* CAN Filter Master Register bits */
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#define FMR_FINIT ((uint32_t)0x00000001) /* Filter init mode */
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/* Time out for INAK bit */
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#define INAK_TIMEOUT ((uint32_t)0x0000FFFF)
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/* Time out for SLAK bit */
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#define SLAK_TIMEOUT ((uint32_t)0x0000FFFF)
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/* Flags in TSR register */
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#define CAN_FLAGS_TSR ((uint32_t)0x08000000)
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/* Flags in RF1R register */
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#define CAN_FLAGS_RF1R ((uint32_t)0x04000000)
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/* Flags in RF0R register */
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#define CAN_FLAGS_RF0R ((uint32_t)0x02000000)
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/* Flags in MSR register */
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#define CAN_FLAGS_MSR ((uint32_t)0x01000000)
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/* Flags in ESR register */
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#define CAN_FLAGS_ESR ((uint32_t)0x00F00000)
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/* Mailboxes definition */
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#define CAN_TXMAILBOX_0 ((uint8_t)0x00)
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#define CAN_TXMAILBOX_1 ((uint8_t)0x01)
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#define CAN_TXMAILBOX_2 ((uint8_t)0x02)
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#define CAN_MODE_MASK ((uint32_t) 0x00000003)
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#endif /*BXCAN_H_*/
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