TR4 User Manual
16
www.terasic.com
March 30, 2017
Figure 2-9 Programming Flash complete
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JTAG Control DIP Switch
The TR4 supports individual JTAG interfaces on each HSMC connector. This feature allows users
to extend the JTAG chain to daughter cards or additional TR4s.
Before using this interface, JP7
needs to be shorted to enable the JTAG interface on all the HSMC connectors.
The JTAG signals on each HSMC connector can be removed or included in the active JTAG chain
via DIP switches.
Table 2-1
lists the position of the DIP switches and their associated interfaces.
Note that if the JTAG interface on HSMC connector is enabled, make sure that the active JTAG
chain must be a closed loop or the FPGA may not be detected. Section 2.5 will give an example on
how to extend the JTAG interface to a daughter card. Also, a document named
Using_Mult-TR4_system.pdf
in TR4 system CD shows how to connect the JTAG interface on two
stacked TR4 boards.
Summary of Contents for TR4
Page 1: ...TR4 User Manual 1 www terasic com March 30 2017 y94 ...
Page 45: ...TR4 User Manual 42 www terasic com March 30 2017 Figure 2 24 Clock Connections of the TR4 ...
Page 58: ...TR4 User Manual 55 www terasic com March 30 2017 Figure 2 31 R199 R201 Position on TR4 ...
Page 67: ...TR4 User Manual 64 www terasic com March 30 2017 Figure 3 7 Access DDR3 SO DIMM Memory ...