DECA User Manual
10
www.terasic.com
May 22, 2015
Chapter 3
Using the DECA Board
This chapter provides an instruction to use the board and describes the peripherals.
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There are two types of configuration method supported by DECA:
1. JTAG configuration: configuration using JTAG ports.
JTAG configuration scheme allows you to directly configure the device core through JTAG pins -
TDI, TDO, TMS, and TCK pins. The Quartus II software automatically generates .sof that are used
for JTAG configuration with a download cable in the Quartus II software programmer..
2. Internal configuration: configuration using internal flash.
Before internal configuration, you need to program the configuration data into the configuration
flash memory (CFM) which provides non-volatile storage for the bit stream. The information is
retained within CFM even if the DECA board is turned off. When the board is powered on, the
configuration data in the CFM is automatically loaded into the MAX 10 FPGA.
JTAG Chain on DECA Board
The FPGA device can be configured through JTAG interface on DECA board, but the JTAG chain
must form a closed loop, which allows Quartus II programmer to the detect FPGA device.
Figure
3-1
illustrates the JTAG chain on DECA board.