
VCU1287 Characterization Board
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22
UG1121 (v1.0) December 11, 2015
Chapter 3:
Board Component Descriptions
FPGA Configuration
The FPGA is configured using one of the following options:
• Digilent embedded USB JTAG connector (callout 6,
Figure 2-1
).
The VCU1287 board comes with an embedded USB-to-JTAG configuration module
(Digilent, U80), which allows a host computer to access the board JTAG chain using a
Standard A to Micro-B USB cable.
• Platform cable USB JTAG cable connector (callout 7,
Figure 2-1
).
A JTAG connector (J2) can be used to provide access to the JTAG chain using the Xilinx
Platform Cable USB, Platform Cable USB II, or Parallel Cable IV (PCIV) configuration
cable.
• SD card using the Zynq-7000 AP SoC system controller in 8-bit SelectMAP mode
(callout 8,
Figure 2-1
).
The FPGA can be configured from an SD memory card installed in J10 with the help of
the system controller U38, which reads a predefined bit file from the SD card and
configures the FPGA in 8-bit SelectMAP configuration mode. See
FPGA CONFIG Menu
.
The JTAG chain of the board is illustrated in
Figure 3-7
. By default, only the UltraScale FPGA
is part of the chain (J6 jumper uninstalled). Installing the J6 jumper enables an 8-bit bus
transceiver (U69, SN74AVC8T245) and adds the FMC interfaces to the chain.
X-Ref Target - Figure 3-7
Figure 3-7:
JTAG Chain
JTAG
Conn
USB-JTAG
Module
Micro-B
USB Conn
Xilinx
System
Controller
XC7Z010-
CLG225
Xilinx
UltraScale
FPGA
FMC2/AFX
Connector
(VCCO_HR)
SYS_TCK
SYS_TMS
SYS_TDI
SYS_TDO
BANK 34 (1.8V)
2:1
MUX
FMC1/AFX
Connector
(VCCO_HP)
FMC3/AFX
Connector
(VCCO_HP)
BANK 0 (VCCO)
FMC_TCK
FMC_TMS
FMC1_TDI
TDI_0
TMS_0
TDO_0
1.8V
VCCO_HR
3.3V
DUT_TDI
VCCO_HR
FMC2_TDI
FMC3_TDI
FMC3_TDO
1.8V
;
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