Quartus® Prime Standard Edition User Guide: Design Compilation

ID 683283
Date 10/22/2021
Document Table of Contents

4.2.2. Use Appropriate Coding Style to Reduce Synthesis Time

Your HDL coding style can also affect the synthesis time. For example, if you want to infer RAM blocks from your code, you must follow the guidelines for inferring RAMs. If RAM blocks are not inferred properly, the software implements those blocks as registers.

If you are trying to infer a large memory block, the software consumes more resources on the FPGA. This can cause routing congestion and increases compilation time significantly. If you see high routing utilization in certain blocks, review the code for such blocks.