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Altera_Forum
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8 years ago

Floating Point multiplication problem!

Hello! I'm trying to mult 10-bit bus with floating point constant 0.5. To do this I am using a IP FP arithmetic blocks. First - conversion 10 bit bus to 32 float, then - multiplication block (3...
Altera_Forum's avatar
Altera_Forum
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8 years ago

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Thanks for help!

On the other hand. I want to add a little offset to my NCO 10 bit sin signal. Sinus is represented by samples from 500 to -500. After adding 100 signed integer with adder from Altera IP (10 bits + 10 bits) at the DAC output I get a deformed sinus - the peak is inverted.

Thanks in advance for any suggestion.

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Might be you are discarding MSB from result. You shouldn't.

You get 11 bits sum then you either use bits(10:1) or

(9:0) but this needs clipping(not recommended)