The following figure and table provide an overview of the physical connections, their designators, and relative position on the starter kit. The table uses the following abbreviations to indicate if a specific designator is located on the carrier card or on the SOM:
- CC = Device or interface is located on the carrier card
- SOM = Device or interface is located on the SOM
There are two USB ports on the carrier card and three Ethernet interfaces (one connected to a PS GEM and a pair connected to the PL-based GEMs). As shown in the following figure, GEM0 on J24 is the default firmware and software Ethernet interface used for the image recovery application and the primary Ethernet interface in Linux.
Figure 1. Interfaces and Connectors—Top of Card
| Location | Name | Description |
|---|---|---|
| SOM DS34 | PS done LED | Lit indicates that the PS has successfully loaded a PL design. |
| SOM DS35 | Heartbeat LED | Periodic flashing green LED driven by the Zynq UltraScale+ MPSoC APU processor. |
| SOM DS36 | PS status LED | Status LED, when lit indicates a successful application load. |
| CC DS1-DS6, DS9 | Power status LEDs | Indicates various power supply and power domain status. Green LED indicates good status. |
| CC DS7, DS8 | User defined LEDs | User defined LEDs |
| CC J2 | Pmod | Digilent Pmod 2x6 expansion header |
| CC J3 | PC4 JTAG | Direct JTAG interface, bypasses the FTDI device. |
| CC J4 | FTDI USB2.0 UART and JTAG | Integrated JTAG and device UART interface via USB2.0 |
| CC J11 | microSD card | microSD card boot device through USB hub |
| CC J12 | 12 V power input | 12 V power input jack |
| CC J13 | Fan power | 12 V SOM fan power interface |
| CC J18 | CAN | CAN connector connected to PS MIO-based controller |
| CC 19 | CAN termination resistor selector | Default pin 2-3, termination resistor is not inserted. Connecting pin 1-2 inserts termination resistor |
| CC J20 | CAN termination resistor selector | Default pin 2-3, termination resistor is not inserted. Connecting pin 1-2 inserts termination resistor |
| CC J21 | RS485 termination resistor selector | Default pin 2-3, termination resistor is not inserted. Connecting pin 1-2 inserts termination resistor |
| CC J22 | RS485 | Distributed serial bus connected to PS MIO-based controller |
| CC J23 | JTAG mode selector | Default is not connected. When pin 1-2 is connected, the Zynq UltraScale+ MPSoC is put into JTAG mode |
| CC J24 | Ethernet RJ45 jack | 1 Gb/s PS GEM0 RGMII Ethernet interface |
| CC J25A | Ethernet RJ45 jack | 1 Gb/s PL GEM2 RGMII Ethernet interface on HPA |
| CC J25B | Ethernet RJ45 jack | 1 Gb/s PL GEM1 RGMII Ethernet interface on HPA |
| CC J32 | 3-phase inverter connector | Motor connector 3-pole output |
| CC J39 | DC link connector | DC link power connector |
| CC J42 | QEI connector | Quadrature encoder interface (QEI) connector, single-ended encoder input |
| CC J43 | QEI connector | QEI connector, differential encoder input |
| CC J44 | QEI selection multiplexer | Jumper to select between J42 and J43 where 1-2 selects the differential and 2-3 selects the single-ended encoder input |
| CC J45 | Torque sensor connector | Torque sensor connector |
| CC J46 | Brake control connector | Brake control connector |
| CC J47 | 1-Wire interface | 1-Wire interface for 1-Wire based sensors |
| CC J51 | PMU reset control selector | Default pin 1-2 is connected. When connected and implemented by PMU firmware, it enables a PMU-commanded POR_B reset of the SOM. If not using the PMU POR_B reset command feature, the jumper should be removed. |
| CC SW1 | Firmware update button | Push button used during the boot firmware update process |
| CC SW2 | Reset button | Push button that resets the SOM using the device POR_B signal |
| CC U44 | USB0 | Two USB3.0 or USB2.0 compatible connectors |