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60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/*
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* This file is part of the fx3u project.
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* Copyright 2024 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <stdint.h>
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// min/max speeds in bps
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#define CAN_MAX_SPEED ((uint32_t)3000000UL)
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#define CAN_MIN_SPEED ((uint32_t)9600UL)
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// wait to send not more tnah
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#define SEND_TIMEOUT_MS (100)
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// incoming message buffer size
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#define CAN_INMESSAGE_SIZE (8)
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// CAN message
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typedef struct{
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uint8_t data[8]; // up to 8 bytes of data
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uint8_t length; // data length
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uint16_t ID; // ID of receiver
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} CAN_message;
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typedef enum{
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CAN_STOP,
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CAN_READY,
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CAN_BUSY,
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CAN_OK,
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CAN_ERR,
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CAN_FIFO_OVERRUN
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} CAN_status;
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CAN_status CAN_get_status();
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void CAN_reinit(uint32_t speed);
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void CAN_setup(uint32_t speed);
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CAN_status CAN_send(CAN_message *message);
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void CAN_proc();
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void CAN_printerr();
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void CAN_sniffer(uint8_t issniffer);
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CAN_message *CAN_messagebuf_pop();
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