CAN communication handler for sending and receiving control messages related to the supercapacitor power module. More...

#include <cstdint>
#include <fdcan.h>

Data Structures
struct	ref_msg_packet
	Incoming reference message structure received over CAN. More...

struct	supercap_msg_packet
	Outgoing status message structure sent over CAN. More...

class	CANComm
	Abstraction class to manage CAN communication for the supercap board. More...

Macros
#define	CAN_NODE_ID 0x067
	CAN ID for receiving command messages intended for this board.

#define	DEVC_NODE_ID 0x077
	CAN ID used by this board to send messages to others.

Functions
struct ref_msg_packet	__attribute__ ((packed))

void	initCANComm (FDCAN_HandleTypeDef *fdcan_)
	Initializes CAN communication: configures filters and starts the FDCAN peripheral.

Variables
uint8_t	enable_module
	Enable/disable flag for supercap control loop.

uint8_t	reset
	If set, triggers a software reset.

uint8_t	pow_limit
	Maximum power budget (W)

uint16_t	energy_buffer
	Optional buffer value to apply limiting strategy.

float	chassis_power
	Computed instantaneous power drawn by chassis.

uint8_t	error
	Error code or flag (0 = OK)

uint8_t	cap_energy
	Supercap charge percentage (0–255 mapped)

class CANComm	__attribute__

Detailed Description

CAN communication handler for sending and receiving control messages related to the supercapacitor power module.

This header defines the message packet structures and the CANComm class that abstracts transmission and reception of messages using STM32's FDCAN peripheral.

Created on: Jan 20, 2025 Author: Yassine Bakkali

Macro Definition Documentation

◆ CAN_NODE_ID

#define CAN_NODE_ID 0x067

CAN ID for receiving command messages intended for this board.

< Standard integer types FDCAN peripheral definitions

◆ DEVC_NODE_ID

#define DEVC_NODE_ID 0x077

CAN ID used by this board to send messages to others.

Function Documentation

◆ attribute()

struct ref_msg_packet __attribute__ ( (packed) )

◆ initCANComm()

void initCANComm ( FDCAN_HandleTypeDef * fdcan_ )

Initializes CAN communication: configures filters and starts the FDCAN peripheral.

Parameters

fdcan_ Pointer to the FDCAN handle used (typically &hfdcan3).

Initializes CAN communication: configures filters and starts the FDCAN peripheral.

This function sets up the CAN ID filters, enables relevant interrupts, configures delay compensation, and starts the FDCAN interface.

Parameters

fdcan_ Pointer to the FDCAN handle to initialize.

Variable Documentation

◆ attribute

struct supercap_msg_packet __attribute__

◆ cap_energy

uint8_t cap_energy

Supercap charge percentage (0–255 mapped)

◆ chassis_power

float chassis_power

Computed instantaneous power drawn by chassis.

◆ enable_module

uint8_t enable_module

Enable/disable flag for supercap control loop.

◆ energy_buffer

uint16_t energy_buffer

Optional buffer value to apply limiting strategy.

◆ error

uint8_t error

Error code or flag (0 = OK)

◆ pow_limit

uint8_t pow_limit

Maximum power budget (W)

◆ reset

uint8_t reset

If set, triggers a software reset.

Data Structures

Macros

Functions

Variables