AN1105 datasheet(88/100 Pages) STMICROELECTRONICS

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ST7 pCAN PERIPHERAL DRIVER

//Error status messages

//Initialisation

typedef enum {CAN_INIT_SUCCESS,CAN_INIT_FAILURE}CAN_Init_Error;

//Sleep

typedef enum

{CAN_SLEEP_FATAL,CAN_SLEEP_ERROR,CAN_SLEEP_SUCCESS,CAN_SWITCH_ON_SUCCES,CAN_

SWITCH_ON_FAILURE}CAN_Switch_Error;

//Status

typedef enum

{CAN_RUN,CAN_STANDBY,CAN_BUS_ACTIVE,CAN_BUS_PASSIVE,CAN_BUS_OFF}CAN_Status;

//Misc.

typedef enum {CFALSE=0,CTRUE=1}CAN_Bool;

//Transmission-Reception

typedef enum

{CAN_TRANSMIT_FATAL,CAN_TRANSMIT_SUCCESS,CAN_TRANSMIT_FAILURE,CAN_TRANSMIT_N

O_MSG,CAN_FIFO_FULL,CAN_TRANSMIT_BUFFER_FULL,CAN_TRANSMISSION_ERROR_IT}CAN_T

ransmit_Error;

typedef enum

{CAN_RECEIVE_FATAL,CAN_RECEIVE_SUCCESS,CAN_RECEIVE_REMOTE,CAN_ILLEGAL_IDENTI

FIER,CAN_FILTERING_FAILURE,CAN_BUFFER_IN_USE,CAN_NO_BUFFER,CAN_RCV_BUFFER_NO

T_READY}CAN_Receive_Error;

//////////////////////////////////////

//Transmission/Reception structures //

//////////////////////////////////////

//Input/output structure

typedef struct CAN_Buffer{

u16 msg_identifier;

CAN_Data_Size data_size;

u8 CAN_msg_data[CAN_MAX_DATA_SIZE];

CAN_Bool buffer_rw;

CAN_Bool buffer_free; //shared variable

}CAN_Buffer;

/////////////////////////////

//Initialization parameters//

/////////////////////////////

//Initialisation data structure

typedef struct {

u8 brpr_init;

u8 btr_init;

u8 fhr1_init;

AN1105 Datasheet(PDF) 88 Page - STMicroelectronics

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