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5990 Discussions

problem with data type ''single''

Honored Contributor II

I tried to run a simple product with altera dsp builder advanced blocksets. then I compliled the project and program it on stratix IV board. when I set the data type to fixed point in dsp builder I can see the correct result in signal tap ii analyzer, but when I put the data type in single or double the output in signal tap ii will be zero!! 

what is the problem? 

can anyone help me plz?
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1 Reply
Honored Contributor II

Does the design work in ModeSim simulation, for example using the DSP Builder > Verify Design UI? If not, do you have the design?