SLVUDA7 September 2025
Table 3-2 lists the jumper connections for the EVM.
| Connection | Type | Description |
|---|---|---|
| J1 | 12-pin header | Access to all critical digital I/O and GND for connecting the CAN transceiver externally with test equipment or interfaced to a processor EVM. For 8-pin CAN transceivers: Pull J1.2 low to GND when using an 8-pin CAN transceiver with STB. This is typically required to be low for normal operation. Leave J18 floating if 8-pin CAN transceivers are used. J1.2 low is used in combination with J18 floating. |
| J2 | DSUB9 connector | Provides an alternative way to connect CANH, CANL, and GND all through a standard DSUB9 CAN pinout rather than through a regular header. |
| J3 | 4-pin header | Access to pin 7 (INH), WAKE, and GND. |
| J4 | 2-pin jumper | Implements 120Ω split termination. Must be used in combination with J6. |
| J5 | 2-pin jumper | Implements 120Ω termination resistor. Along with the split termination (J4 and J6), this allows the simulation of the true CAN bus impedance of 60Ω (that is, two 120Ω terminations in parallel). |
| J6 | 2-pin jumper | Implements 120Ω split termination. Must be used in combination with J4. |
| J7 | 6-pin header | CAN bus connection (CANH, CANL) and GND. Can be used to send CAN frames (through Vectors CANoe for example) |
| J8 | 2-pin jumper | Shunt for the temperature sensor's SCL connection to CAN FDL GPIO9/CS4/SCL pin. Leave floating / disconnected if the temperature sensor (U2) is not needed and the GPIO8 is needed for other connections. |
| J9 | 4-pin header | Shunt for a shared VIO connection to pin 11. Pin 11 is typically a NC pin or VIO. For 8-pin CAN transceivers: Shunt VIO to P11 to make sure the VIO pin is supplied. |
| J10 | 2-pin jumper | Shunt for temperature sensor SDA connection to CAN FDL GPIO10/CS5/SDA pin Leave floating / disconnected if the temperature sensor (U2) is not needed and GPIO10 is needed for other connections. |
| J11 | 16-pin header | Access to all critical CAN FDL GPIO (GPIO0 - GPIO7) and GND for using the CAN FDL IOs externally with test equipment or interfaced to a processor EVM. |
| J12 | 2-pin jumper | Shunt for CAN FDL Responder CRXD to the CAN transceiver RXD. |
| J13 | 2-pin jumper | Required, to power the CAN FDL Responder: Shunt for CAN FDL Responder VDD connection to P4 VDD banana jack connection. |
| J14 | 6-pin header | Shunt for a sharing VDD, Vcc, VIO and 5VLED connections. Share as needed. |
| J15 | 2-pin jumper | Shunt for CAN FDL Responder CTXD to the CAN transceiver TXD |
| J16 | 4-pin header | Access to CAN FDL GPIO9/CS4/SCL, GPIO10/CS5/SDA pins and GND for driving the CAN FDL Responder externally with test equipment or interfaced to a processor EVM. When J16 is used for other connections other than U2: Make sure J8 and J10 are disconnected / floating. |
| J17 | 6-pin header | Access to CAN FDL GPIO11/CS6/PMW0, GPIO12/CS7/PMW1, GPIO8/URXD pins and GND for driving the multi-color RGB LED D4 peripheral. |
| J18 | 2-pin jumper | Shunt for CAN FDL CSLP pin to the CAN transceiver nSTB pin For 8-pin CAN transceivers with STB: Disconnect / float J18. |
| J19 | 3-pin jumper | Shunt for CAN FDL PROG pin to VDD, or GND |
| J20 | Ground Clip | Provides extra connection to GND. |
| J21 | 2-pin jumper | Shunt to connect VBAT and VVSUP. This bypasses diode D5. |
| Test point | Red | Voltage supplies |
| Black | GND | |
| White | CAN transceiver's logic I/Os | |
| Grey | CAN tranceiver INH and WAKE logic I/Os | |
| Blue | CAN FDL GPIOs and CAN transceiver's CANH / CANL |