114 lines
3.5 KiB
C
114 lines
3.5 KiB
C
#ifndef APPLICATION_USER_INC_MCP2515_H_
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#define APPLICATION_USER_INC_MCP2515_H_
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#include <stdint.h>
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#include <stdbool.h>
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#include <stm32f0xx_hal.h>
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typedef enum {
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ERROR_OK = 0,
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ERROR_FAIL = 1,
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ERROR_ALLTXBUSY = 2,
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ERROR_FAILINIT = 3,
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ERROR_FAILTX = 4,
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ERROR_NOMSG = 5
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} CAN_Error;
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typedef enum {
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CLKOUT_DISABLE = -1,
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CLKOUT_DIV1 = 0x0,
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CLKOUT_DIV2 = 0x1,
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CLKOUT_DIV4 = 0x2,
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CLKOUT_DIV8 = 0x3,
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} CAN_CLKOUT;
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typedef enum { MCP_20MHZ, MCP_16MHZ, MCP_8MHZ } CAN_CLOCK;
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typedef enum {
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CAN_5KBPS,
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CAN_10KBPS,
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CAN_20KBPS,
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CAN_31K25BPS,
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CAN_33KBPS,
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CAN_40KBPS,
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CAN_50KBPS,
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CAN_80KBPS,
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CAN_83K3BPS,
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CAN_95KBPS,
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CAN_100KBPS,
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CAN_125KBPS,
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CAN_200KBPS,
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CAN_250KBPS,
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CAN_500KBPS,
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CAN_1000KBPS
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} CAN_SPEED;
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typedef enum { MASK0, MASK1 } MASK;
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typedef enum { RXF0 = 0, RXF1 = 1, RXF2 = 2, RXF3 = 3, RXF4 = 4, RXF5 = 5 } RXF;
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typedef enum { TXB0 = 0, TXB1 = 1, TXB2 = 2 } TXBn;
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typedef enum { RXB0 = 0, RXB1 = 1 } RXBn;
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typedef enum {
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MODE_NORMAL,
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MODE_SLEEP,
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MODE_LOOPBACK,
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MODE_LISTEN_ONLY
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} MCP2515_Mode_t;
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typedef enum {
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PRIORITY_LOW,
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PRIORITY_NORMAL,
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PRIORITY_HIGH,
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PRIORITY_HIGHEST,
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} MCP2515_Priority_t;
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typedef struct {
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SPI_HandleTypeDef* hspi;
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GPIO_TypeDef* cs_port;
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uint16_t cs_pin;
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} MCP2515_HandleTypeDef;
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typedef struct can_frame_s {
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uint32_t can_id; /* 32 bit CAN_ID + EFF/RTR/ERR flags */
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uint8_t can_dlc;
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uint8_t data[8];
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} can_frame_t;
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void MCP2515_Init(MCP2515_HandleTypeDef* hcan, SPI_HandleTypeDef* hspi, GPIO_TypeDef* cs_port, uint16_t cs_pin);
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CAN_Error MCP2515_Reset(MCP2515_HandleTypeDef* hcan);
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uint8_t MCP2515_Get_Status(MCP2515_HandleTypeDef* hcan);
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CAN_Error MCP2515_Set_Mode(MCP2515_HandleTypeDef* hcan, MCP2515_Mode_t mode);
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CAN_Error MCP2515_Set_Pin_Control(MCP2515_HandleTypeDef* hcan, bool B1BFS, bool B0BFS, bool B1BFE, bool B0BFE, bool B1BFM, bool B0BFM);
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CAN_Error MCP2515_Set_Interrupt(MCP2515_HandleTypeDef* hcan, bool MERRIE, bool WAKIE, bool ERRIE, bool TX2IE, bool TX1IE, bool TX0IE, bool RX1IE, bool RX0IE);
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CAN_Error MCP2515_Set_Bitrate_Clock(MCP2515_HandleTypeDef* hcan, CAN_SPEED canSpeed, CAN_CLOCK canClock);
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CAN_Error MCP2515_Set_Transmit_Priority(MCP2515_HandleTypeDef* hcan, MCP2515_Priority_t txb0, MCP2515_Priority_t txb1, MCP2515_Priority_t txb2);
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CAN_Error MCP2515_Set_Filter_Mask(MCP2515_HandleTypeDef* hcan, MASK mask, uint8_t ext, uint32_t ulData);
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CAN_Error MCP2515_Set_Filter(MCP2515_HandleTypeDef* hcan, RXF num, uint8_t ext, uint32_t ulData);
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CAN_Error MCP2515_Send_Message_To(MCP2515_HandleTypeDef* hcan, TXBn txbn, can_frame_t* frame);
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CAN_Error MCP2515_Send_Message(MCP2515_HandleTypeDef* hcan, can_frame_t* frame);
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CAN_Error MCP2515_Read_Message_From(MCP2515_HandleTypeDef* hcan, RXBn rxbn, can_frame_t* frame);
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CAN_Error MCP2515_Read_Message(MCP2515_HandleTypeDef* hcan, can_frame_t* frame);
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uint8_t MCP2515_Check_Receive(MCP2515_HandleTypeDef* hcan);
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uint8_t MCP2515_Get_Error_Flags(MCP2515_HandleTypeDef* hcan);
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uint8_t MCP2515_Check_Error(MCP2515_HandleTypeDef* hcan);
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void MCP2515_Clear_RXn_OVR_Flags(MCP2515_HandleTypeDef* hcan);
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uint8_t MCP2515_Get_Interrupts(MCP2515_HandleTypeDef* hcan);
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void MCP2515_Clear_Interrupts(MCP2515_HandleTypeDef* hcan);
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uint8_t MCP2515_Get_Interrupt_Mask(MCP2515_HandleTypeDef* hcan);
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void MCP2515_Clear_TX_Interrupts(MCP2515_HandleTypeDef* hcan);
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void MCP2515_Clear_RXn_OVR(MCP2515_HandleTypeDef* hcan);
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void MCP2515_Clear_MERR(MCP2515_HandleTypeDef* hcan);
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void MCP2515_Clear_ERRIF(MCP2515_HandleTypeDef* hcan);
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#endif /* APPLICATION_USER_INC_MCP2515_H_ */
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