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Altera_Forum
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12 years ago

UART and MODELSIM ALTERA (code attached)

Hi dears. I am trying to use a (slightly) modified version of the UART explained in a tutorial I've found, after reading some theory about. There is one UART entity which has two c...
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Altera_Forum
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11 years ago

After some weeks I found the issue.

My first theory is that Altera boards just work with Altera codes (IP core).

The code attached works very well in the Altera ModelSim simulation, but it does not in my DE2 (http://www.altera.com/education/univ/materials/boards/de2/unv-de2-board.html).

If I am wrong, the Altera ModelSim and the Quartus II synthesizer/compiler are wrong too.

My code is just a buffered RX 115200bps UART. I atacched even the pin csv association and my simulation results.

When I send a byte via terminal, the TX led blinks indicating that the buffer is empty, but nothing more than that happens, even if I reset the system.

I doubt if it has any error in the code.

Thanks any way.