MCP2517FD click is a complete CAN solution which carries the MCP2517FD CAN FD controller and ATA6563 high-speed CAN transceiver from Microchip, as well as a DB9 9-pin connector.

The click requires both 3.3V and 5V power supply. It communicates with the target microcontroller through the SPI interface, with additional functionality provided by the following pins on the mikroBUS??? socket: AN, PWM, INT, TX and RX.

Note: For selecting the interface voltage level, use the onboard jumper, and choose between the 3.3V and 5V. For more information, see the Jumpers and Settings table below.

MCP2517FD features

The MCP2517FD is a cost-effective and small-footprint CAN FD controller that can be easily connected to a microcontroller over an SPI interface. Therefore, a CAN FD channel can be easily added to a microcontroller that is either lacking a CAN FD peripheral, or that doesn???t have enough CAN FD channels.

The MCP2517FD supports both, CAN frames in the Classical format (CAN2.0B) and CAN Flexible Data Rate (CAN FD) format.

ATA6563 CAN transceiver features

ATA6563 is a high-speed CAN transceiver that provides an interface between a controller area network (CAN) protocol controller and the physical two-wire CAN bus.

The transceiver is designed for high-speed (up to 5Mbit/s) CAN applications in the automotive industry, providing differential transmit and receive capability.

It offers improved electromagnetic compatibility (EMC) and electrostatic discharge (ESD) performance.

Connector features

This is a standard DB 9-pin male connector.

Specifications

Pinout diagram

This table shows how the pinout on MCP2517FD click corresponds to the pinout on the mikroBUS??? socket (the latter shown in the two middle columns).

Notes	Pin					Pin	Notes
Standby mode control input	STBY	1	AN	PWM	16	CLKO	Clock output
	NC	2	RST	INT	15	nINT	Interrupt output
Chip select	nCS	3	CS	TX	14	nINT0	Interrupt output/transceiver standby/GPIO
SPI Clock	SCK	4	SCK	RX	13	nINT1	Interrupt output/GPIO
SPI Master Input Slave Output	MISO	5	MISO	SCL	12	NC
SPI Master Output Slave Input	MOSI	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

Additional pins

Jumpers and settings

LEDs and buttons

Programming

Code examples for MCP2517FD click, written for MikroElektronika hardware and compilers are available on Libstock.

Code snippet

The following code snippet shows the transmission using MCP2517FD CAN controller.

01 void transmitMessage( char *msg )
02 {
03     T_MCP2517FD_txFifoEvent     txFlags;
04     T_MCP2517FD_txMsgObj        txObj;
05     uint8_t                     txData[_MCP2517FD_MAX_DATA_BYTES];
06     bool                        flush;
07     
08     flush = true;
09     txObj.word[0] = 0;
10     txObj.word[1] = 0;
11     
12     txObj.bF.id.SID = 0x300;
13     txObj.bF.id.EID = 0;
14     txObj.bF.ctrl.FDF = 1;
15     txObj.bF.ctrl.BRS = 1;
16     txObj.bF.ctrl.IDE = 0;
17     txObj.bF.ctrl.RTR = 0;
18     txObj.bF.ctrl.DLC = MCP2517FD_DLC_64;
19     txObj.bF.ctrl.SEQ = 1;
20     
21     memset(txData, 0, _MCP2517FD_MAX_DATA_BYTES);
22     strcpy(txData, msg);
23     MCP2517FD_TransmitEventGet(MCP2517FD_IDX, &txFlags);
24     
25     if( txFlags & MCP2517FD_TX_FIFO_NOT_FULL )
26     {
27         MCP2517FD_TransmitChannelLoad(MCP2517FD_IDX, MCP2517FD_FIFO_CH1, &txObj,
28                 txData, MCP2517FD_DlcToDataBytes(txObj.bF.ctrl.DLC), flush);
29         LOG( "rn MCP2517FD : Message sent! > " );
30         LOG( txData );
31         LOG( "rn" );
32     }
33     else
34     {
35         LOG( "rn MCP2517FD : Message not sent! >rn" );
36     }
37 }