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DEMO_FX3_U3V_CAM01 EZ-USB™ FX3 camera kit guide
EZ-USB™ FX3 camera kit system design
3.2
DEMO_FX3_U3V_CAM01 baseboard design details
The DEMO_FX3_U3V_CAM01 baseboard consists of the FX3 silicon (CYUSB3014-BZXI), USB-C connector,
SuperSpeed MUX, and SPI flash. The board is bus-powered and uses a 19.2-MHz crystal for operation. The
development board provides convenient access to FX3 interfaces, such as GPIOs, I2C, SPI, and JTAG. The two
40-pin headers (on the reverse PCB side in
GPIO interface. Note that for convenience, the headers have long pins that extend above the top side of the PCB
for use as test points or attachment to mating connectors. All I/O signals, which include the 32-bit data bus, 13
control lines, and a 100-MHz clock, are available to connect to external devices such as FPGAs, CPLDs, image
sensors, or microcontrollers.
The baseboard contains the following key components:
3.2.1
USB connector (J1)
The FX3 capture kit provides one USB 3.0 Type-C receptacle that brings out FX3 USB signals. This receptacle
accepts a Type-C connection, and the other end of the cable connects to a USB host PC via either a Type-A or a
Type-C port as well. A SuperSpeed USB-C cable is included in the kit. Use this port to test FX3 applications that
communicate with a host PC. Using the Type-C interface allows access to FX3 debug interface using serial
terminal messages.
3.2.2
Jumpers and switches
Jumper (J2): This is a power ON jumper. When closed, it allows USB VBUS for powering the board.
J2 close: Power ON (Default)
J2 open: Power OFF
Power switch (SW1): This is used to switch the add-on board power from 1.8 V to 3.3 V and vice-versa. This
allows compatibility with FX3 camera kit interconnect modules, which typically require 1.8 V. The camera add-
on board supplied with this kit can operate at both 1.8 V and 3.3 V; however, to connect an external Raspberry
Pi MIPI camera board, 3.3 V is required.
SW1 ON: 3.3 V (Default)
SW1 OFF: 1.8 V
Reset switch (SW2): Reboots the silicon. Press the switch and release to boot from the selected mode set by
SW3.
Mode selection switch (SW3): Selects the mode in which FX3 has to boot upon reset or power ON. The FX3
camera kit can boot in two modes based on the position of this switch.
Table 2
Boot modes
Boot mode
USB
SPI
To program the device, set SW3 in USB mode. After programing, setting the mode switch in SPI mode and
rebooting the device allows FX3 to boot from the SPI flash.
User switch (SW4): Allows to achieve user-defined functions such as still capture. Pressing this switch sends an
I2C command to FX3.
User Guide
Figure
3) provide FX3 signals to connect to external boards using the
PMODE1
SW3.2 ON
SW3.2 OFF
8 of 28
PMODE2
SW3.1 OFF
SW3.1 ON
002-36189 Rev.*B
2022-12-13
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