can.h

 
#ifndef _CAN_H
#define _CAN_H
 
#include "stdint.h"
#include "stm32f439xx.h"
 
#include "params.h"

 
struct CAN_RX_data {
  unsigned int dataL;   // data high register
  unsigned int dataH;   // data low register
  unsigned int address; // CAN identifer
  uint8_t CAN_number;   // either CAN2 or CAN1
};
 
void CANGPIO_config();
void CAN_Peripheral_config();
uint8_t find_empty_CAN_TX_mailbox(uint8_t);
uint8_t CAN_TX(uint8_t, uint8_t, unsigned int, unsigned int, unsigned int);
uint8_t CAN_RX(struct CAN_RX_data *);
 
#endif