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Altera_Forum
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8 years ago

error: Unexpected use of HDL library function(s)

Hi, I'm using the 16.1 SDK to develop an OpenCL library. After added a second input parameter to my function, I get this error message (twice): error: Unexpected use of HDL library f...
Altera_Forum's avatar
Altera_Forum
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8 years ago

Upon further testing, this seems to be related to the datatype. If I use "unsigned long" in the RTL library, I get the error. If I use "unsigned long long" it works. So there seems to be a mismatch of the inferred width between the different compiler parts. (I guess the vague C standard is partly to blame here, but a better error message would have saved me a lot of time).