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Altera_Forum
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15 years ago

4-QAM output error

Hi, I am trying to build a 4-QAM on an Altera FPGA and am having problems with the simulation on ModelSim. Attached to this thread is my code "qam4.vhd" which is the 4-QAM code and "testb...
Altera_Forum's avatar
Altera_Forum
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15 years ago

You migth just say:

if input = "00" then

real <= "11"; -- -1

imag <= "01"; -- +1

elsif input = "01" then...