Intel® Quartus® Prime Software
Intel® Quartus® Prime Design Software, Design Entry, Synthesis, Simulation, Verification, Timing Analysis, System Design (Platform Designer, formerly Qsys)

Output from ROM

Altera_Forum
Honored Contributor II
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Hi guys. 

 

I have problem with my design. My output RX1 from rom only shows "00000000". But actually beside "00000000", it has another value. Why it does not appear? Do you have any opinion regarding my problem. I attach my functional simulation result and my diagram. Thanks in advance.
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Altera_Forum
Honored Contributor II
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You'll have to show the rom contents and the addr on the waveform. Otherwise we can only guess. 

There are only 2 possible options: 

1. The addresses are wrong 

2. The rom has the wrong values
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Altera_Forum
Honored Contributor II
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Hi Tricky. Thanks for your respond. Here is my mif file.

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Altera_Forum
Honored Contributor II
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and the address generation during the simualtion?

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Altera_Forum
Honored Contributor II
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that waveforms is small informative. among RX1 "00000000" values there are some. is it "7F"? take a closer look. and you have three clocks. how are they related to?

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