TR5-Lite User Manual
75
June 20, 2018
Power on the TR5_Lite board.
Execute the demo batch file “
TR5_Lite_QDRIIx4_Test.bat
” (or
“
TR5_Lite_QDRIIx4_Test_ub2.bat
” if use USB Blaster II) under the batch file folder,
TR5_Lite_QDRIIx4_Test\demo_batch
.
Press
BUTTON0
of the TR5-Lite board to start the verification process. When
BUTTON0
is
held down, all the
LEDs
will be turned off. All
LEDs
should turn back on to indicate test passes
upon the release of
BUTTON0
.
If any LED is not lit up after releasing
BUTTON0
, it indicates the corresponding QDRII+
SRAM test has failed.
for
the four LEDs.
Press
BUTTON0
again
to regenerate the test control signals for a repeat test.
Table 6-1
LED Indicators
NAME
Description
LED0
QDRII+ SRAM(A) test result
LED1
QDRII+ SRAM(B) test result
LED2
QDRII+ SRAM(C) test result
LED3
QDRII+ SRAM(D) test result
6
6
.
.
2
2
D
D
D
D
R
R
3
3
S
S
D
D
R
R
A
A
M
M
T
T
e
e
s
s
t
t
This demonstration presents a memory test function on the two banks of DDR3-SDRAM on the
TR5-Lite. The memory size of each DDR3 SDRAM bank is 1GB.
Function Block Diagram
shows the function block diagram of this demonstration. There are two DDR3 SDRAM
controllers. One is the master controller which shares resources with a slave controller. The shared
resources include delay-locked loops (DLLs), phase-locked loops (PLLs), and on-chip termination
(OCT). The controller uses 50 MHz as a reference clock, generates one 666.667 MHz clock as
memory clock, and generates one quarter-rate system clock 166.666 MHz for the controller itself.
Содержание TR-5 Lite FPGA
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