CAN-LIN SBC Click

How does it work?

CAN-LIN SBC Click is based on the ATA6586, a System Basis Chip (SBC) from Microchip that combines a CAN transceiver with Partial Networking support, a LIN transceiver, and multiple voltage regulators in a single package. This board is designed to provide reliable high-speed communication over both Controller Area Network (CAN) and Local Interconnect Network (LIN) interfaces. The ATA6586 includes a high-speed CAN transceiver fully compliant with ISO 11898-2:2016, supporting standard CAN data rates up to 1 Mbit/s and CAN FD data rates up to 5 Mbit/s. It features a differential bus receiver with a wide common-mode range, a transmit data (TXD) dominant time-out function, and autonomous bus biasing according to ISO 11898-2:2016 standards. With its automotive-grade qualification (AEC-Q100) and versatile feature set, CAN-LIN SBC Click represents a communication interface solution for advanced embedded systems, particularly those in automotive, industrial control, and networked automation environments where mixed CAN and LIN communication is required.

The CAN interface offers excellent EMC and ESD performance and exhibits ideal passive behavior when the supply voltage is OFF, while allowing direct interfacing with 5V microcontrollers. The device supports advanced low-power management with both local and remote wake-up functionality via a dedicated WAKE-UP button or WUP pin, providing maximum flexibility in system design. In addition, the transceiver automatically disengages from the bus in overtemperature or low power supply conditions, ensuring reliable system protection. Diagnostic and protection features include bus line short-circuit detection, battery connection detection, and RXD recessive clamping detection for enhanced safety.

Complementing the CAN channel, the integrated LIN transceiver (TXL and RXL pins) is designed according to LIN specification 2.2A, ISO 17987-4, and SAEJ2602-2 standards, supporting data communication speeds up to 20Kbaud, making it suitable for body electronics and other low-speed in-vehicle subsystems. It features improved slope control for secure and low-emission data transmission, low electromagnetic emission (EME), and high electromagnetic immunity (EMI). The LIN transceiver supports wake-up capability via the LIN bus, a TXD time-out timer, and robust ESD protection on all bus pins.

CAN-LIN SBC Click features an integrated 4Mbit/s SPI interface that enables direct communication with a host MCU, allowing complete configuration and operation of the ATA6586 System Basis Chip. Through the SPI interface, commands, data, and status information are exchanged, providing control over the device’s functionality and enabling software-based configuration of the output voltage level. To ensure system reliability, the Click board also includes a red FLT LED indicator designed to signal unexpected system faults or error conditions, allowing users to quickly identify operational anomalies during runtime. In addition, the RST pin is provided for hardware resetting of the chip, offering a way to reinitialize the device and restore it to its default state after configuration changes or fault events.

The board also incorporates two header connectors to support both power input and regulated power output. The right-side header provides access to the integrated 5V, 150mA low-dropout (LDO) voltage regulator output from the ATA6586. This output can be used to supply power to external circuitry, and its activity is visually indicated by a green 5V OUT LED, which lights up whenever the regulator is active and delivering voltage. On the left-side header, two additional pins are available: the VEXT pin, used for connecting an external power supply required for the proper operation of the ATA6586, and the VSENS pin, which provides a secondary voltage regulator output capable of delivering up to 30mA at either 3.3V or 5V, depending on configuration. This auxiliary output is intended to power external sensors or low-power peripherals, simplifying system integration by eliminating the need for additional power rails.

This Click board™ can operate with either 3.3V or 5V logic voltage levels. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. Also, this Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used as a reference for further development.

Specifications

Pinout diagram

This table shows how the pinout on CAN-LIN SBC Click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes	Pin					Pin	Notes
Sleep Wake-Up Control	WUP	1	AN	PWM	16	TXL	LIN TX
Reset / ID SEL	RST	2	RST	INT	15	RXL	LIN RX
SPI Select / ID COMM	CS	3	CS	RX	14	TX	CAN TX
SPI Clock	SCK	4	SCK	TX	13	RX	CAN RX
SPI Data OUT	SDO	5	MISO	SCL	12	NC
SPI Data IN	SDI	6	MOSI	SDA	11	NC
Power Supply	3.3V	7	3.3V	5V	10	5V	Power Supply
Ground	GND	8	GND	GND	9	GND	Ground

Onboard settings and indicators

CAN-LIN SBC Click electrical specifications

Software Support

CAN-LIN SBC Click demo application is developed using the NECTO Studio, ensuring compatibility with mikroSDK's open-source libraries and tools. Designed for plug-and-play implementation and testing, the demo is fully compatible with all development, starter, and mikromedia boards featuring a mikroBUS™ socket.

Example Description

This example demonstrates the use of an CAN-LIN SBC Click board by showing the communication between the two Click boards.

Key Functions

• canlinsbc_cfg_setup Config Object Initialization function.
• canlinsbc_init Initialization function.
• canlinsbc_default_cfg Click Default Configuration function.
• canlinsbc_generic_write This function writes a specified number of bytes to the CAN LIN SBC device using UART communication.
• canlinsbc_generic_read This function reads a specified number of bytes from the CAN LIN SBC device using UART communication.

Application Init

Initializes the driver and logger, and performs the Click default configuration.

Application Task

Depending on the selected application mode, it reads all the received data or sends the desired message once per second.

Application Output

This Click board can be interfaced and monitored in two ways:

• Application Output - Use the "Application Output" window in Debug mode for real-time data monitoring. Set it up properly by following this tutorial.
• UART Terminal - Monitor data via the UART Terminal using a USB to UART converter. For detailed instructions, check out this tutorial.

Additional Notes and Information

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.