The driver of a cascade chain should be placed closer to the head of the cascade chain, if possible. This reduces routing latency for these long latency paths and can reduce the need for expensively large switch/DMA FIFOs.
Figure 1. Cascade Chain
- Make sure
fifo_depthconstraints have been specified for nets that require buffering. - Minimize streams and favor windows.
If fifo_depth has been specified you can
check the log for the FIFO report section in AIECompiler.log.