HDL code generation of Simple TF
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Safiya
am 6 Aug. 2015
Beantwortet: Adam Barber
am 11 Aug. 2015
Hi, I would like to set differnet word lengths while doing HDL code generation,
Can I set a Discrete TF block to the different word lengths at below these three locations.
Input port , = 10bit
Inside blocks =16 bit, like accumulator , Multiplier , gain etc ,
Output port ,= 10 bit or 12bit
(How much does it affect the output resolution)
OR all must be same word length?
Thanks,
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Adam Barber
am 11 Aug. 2015
Hi Safiya,
You should be able to set the word length by changing the data types for the specific ports/values inside the discrete transfer function. You can set it in the "Data Types" tab in the block parameters. You can specify for each the word length using "fixdt".
For more information, see the "Parameters and Dialog Box" section of the following link:
As far as output resolution is concerned, this is really application dependent. You can try the Fixed-Point Advisor:
Hope this helps you get started,
-Adam
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