Intel® Quartus® Prime Software
Intel® Quartus® Prime Design Software, Design Entry, Synthesis, Simulation, Verification, Timing Analysis, System Design (Platform Designer, formerly Qsys)
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ROM at ModelSim - data port is in High-Z State

Altera_Forum
Honored Contributor II
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Hi all. 

Im new to FPGAs. 

I have built some circuit with ROM memory (added with MegaWizard).  

The problem is memory output port is in the High-Z state all the time. I have connected clock to 50M clock, and address bus to 10-bit binary counter. 

I have "uploaded" ROM init state file also. 

Can you help me?
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Altera_Forum
Honored Contributor II
1,116 Views

Do you have warnings in Modelsim related to unspecified ROM initialization file?

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Altera_Forum
Honored Contributor II
1,116 Views

I can't see nothing like that. But I attach all messages for query "ROM"

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Altera_Forum
Honored Contributor II
1,116 Views

Please help me, I will go crazy :| Timings are OK. Whats wrong with configuration?

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Altera_Forum
Honored Contributor II
1,116 Views

 

--- Quote Start ---  

Please help me, I will go crazy :| Timings are OK. Whats wrong with configuration? 

--- Quote End ---  

 

 

Configuration looks OK. Check Memory List in Modelsim.
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Altera_Forum
Honored Contributor II
1,116 Views

Memory list is empty. How I can load something? 

Also I noticed that warning: "Warning (113007): Byte addressed memory initialization file "127.hex" was read in the word-addressed format"
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