New ContributorI am using MAX10 FPGA for closed-loop control of the DC-DC Converter with PI implemented in MAX10 using VHDL. I wanted to know how to represent floating-point(decimal for e.g. 1.23, 0.31) values in FPGA using VHDL for the parameters of PI Controller.
Super ContributorHi Kousik,
You can refer to FP mega function as link below.
Hopefully it helps
https://www.intel.cn/content/dam/altera-www/global/zh_CN/pdfs/literature/ug/ug_altfp_mfug.pdf
Super ContributorHello,
I doubt that's a good idea to use actual floating point numbers for your PI controller. Quartus floating point IP (FP mega function) is useful, if your application needs to expose a floating point data interface to communication partners. To represent fractional decimal numbers like 1.23, 0.31, almost every FPGA application uses integer numbers with an implied power of 2 scaling factor. You use VHDL fixed_pkg or own methods with similar functionality.
Frank
Super ContributorThank you FvM and that make sense, I thought he was looking for any IP that need to use floating function. If that's so, Kousik, you can use VHDL predefined package (use ieee.float_pkg.all), may refer to link below for details
Super ContributorKousik,
Let me know if there is any update
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