MIKROE-3933

        CAN FD CLICK PID: MIKROE-3933 Weight: 30 g CAN FD Click is a add-on board based on TLE9252V CAN network transceiver, designed for HS CAN networks up to 5 Mbit/s in automotive and industrial applications. As an interface between the physical bus layer and the CAN protocol controller, the TLE9252V drives the signals to the bus and protects the microcontroller against interferences generated within the network. Given all the features its components offer, the CAN FD Click is best used for for infotainment applications, cluster modules, radar applications and HVAC. CAN FD Click board™ is supported by a mikroSDK compliant library, which includes functions that simplify software development. This Click board™ comes as a fully tested product, ready to be used on a system equipped with the mikroBUS™ socket.   HOW DOES IT WORK? CAN FD Click features TLE9252V high speed CAN network transceiver from Infineon. HS CAN is a serial bus system which connects microcontrollers, sensors and actuators for real-time control applications. The TLE9252V supports both Bus Wake-up Pattern (WUP) functionality and Local Wake-up, as well as CAN Flexible data rate transmission up to 5Mbit/s. Additionally, the TLE9252V supports CAN Flexible data rate (CAN FD) transmission up to 5 Mbit/s The TLE9252V also has an integrated over temperature detection to protect the TLE9252V against thermal overstress of the transmitter. The CAN FD Click supports five different Modes of operation. Each mode with specific characteristics in terms of quiescent current, data transmission or failure diagnostic. For the mode selection the digital input pins EN and STB are used.  Normal-operating mode - all functions of the TLE9252V are available and the device is fully functional.  Receive-only mode - the transmitter is disabled and the receiver is enabled.  Stand-by Mode is a low power mode of the TLE9252V and the transmitter and the receiver are disabled.  Sleep Mode - is a low power mode of the TLE9252V. In Sleep Mode the current consumption is reduced to a minimum while the device is still able to detect a Wake-Up Pattern on WKE pin.  Go-to-Sleep command- is a transition mode allowing external circuitry like a microcontroller to prepare the ECU to go to Sleep Mode. The HS CAN transceiver TLE9252V includes a receiver and a transmitter unit, allowing the transceiver to send data to the bus medium and monitors the data from the bus medium at the same time by suing two wires. The TLE9252V converts the serial data stream which is available on the transmit data input TxD, into a differential output signal on the CAN bus, provided by the CANH and CANL pins. Given all the features its components offer, the CAN FD Click is best used for for infotainment applications, cluster modules, radar applications and HVAC. The onboard SMD jumper labeled as the VIO SEL is used to select which voltage rail will be used as the logic voltage level. It offers voltage selection between 3.3V and 5V so that the click board™ can be interfaced with both the 3.3V and 5V capable MCUs. The two UART wires (RX and TX) can also be connected directly through two pins on the left edge of the board. With R5 and R6 jumpers populated alows you to use click board with standard 12V battery connected on battery pads at right side of board. SPECIFICATIONS Type CAN Applications Infotainment applications, cluster modules, radar applications and HVAC On-board modules TLE9252V, a transceiver designed for HS CAN networks up to 5 Mbit/s in automotive and industrial applications from Infineon Key Features Fail safe features like TxD time-out, RxD Recessive Clamping and Overtemperature shut-down, Very low electromagnetic emission (EME), Dual Power Supply Solution or Undervoltage detection Interface GPIO,UART Compatibility mikroBUS Click board size L (57.15 x 25.4 mm) Input Voltage 3.3V or 5V PINOUT DIAGRAM This table shows how the pinout on CAN FD Click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes Pin Pin Notes NC 1 AN PWM 16 WKE Wake up Stand-by STB 2 RST INT 15 ERR Error flag Mode control EN 3 CS RX 14 TX UART Transmit EN 4 SCK TX 13 RX UART Receive NC 5 MISO SCL 12 NC NC 6 MOSI SDA 11 NC Power Supply 3.3V 7 3.3V 5V 10 5V Ground GND 8 GND GND 9 GND Power supply Ground ONBOARD SETTINGS AND INDICATORS Label Name Default Description PWR LED GREEN - SW SW Down VIO SEL - Left VIO voltage select R5, R6 - NP Jumpers for battery usage Power LED Indicator Wake up switch sensitive on rising and falling edge SOFTWARE SUPPORT We provide a library for the CAN FD Click on our LibStock page, as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards. Library Description The library covers all the necessary functions to control CAN FD click board. Library performs a standard UART communication. Key functions:    canfd_byte_ready( ) - Write Single Byte uint8_t canfd_read_byte( ) - Read Single Byte. void canfd_set_operating_mode ( uint8_t op_mode ) - Set operating mode function. Examples description The application is composed of three sections :  System Initialization - Initializes UART, sets ERR ( INT ) pin as input and STB ( RST ) and EN ( CS ) pins as output, begins to write a log.  Application Initialization - Initialization driver enables - UART, performs an app mode, also write log.  Application Task - (code snippet) This is an example that demonstrates the use of the CAN FD click board. This application task writes message data via UART. In the second case, checks if new data byte have received in RX buffer ( ready for reading ), and if ready than reads one byte from RX buffer. Results are being sent to the Usart Terminal where you can track their changes. void application_task ( )  {      char tmp;      uint8_t drdy_flag;        if ( app_mode == APP_MODE_RECEIVER )      {          // RECEIVER ‐ UART polling            drdy_flag = canfd_byte_ready( );            if ( 1 == drdy_flag )          {              tmp = canfd_read_byte( );              mikrobus_logWrite( &tmp, _LOG_BYTE );          }      }      else      {          // TRANSMITER ‐ TX each 2 sec          mikrobus_logWrite( " TX data: ", _LOG_TEXT );          Delay_ms( 1000 );                    for ( tmp = 0; tmp