Using Counted Auto-Restart - 2024.1 English

Vitis High-Level Synthesis User Guide (UG1399)

Document ID
UG1399
Release Date
2024-07-03
Version
2024.1 English

This example uses the same code as the prior example, but in this case the HLS design is configured to run and restart for three iterations and then stop. The only required change is to specify the number of iterations from the software application as shown in the code example below.

Tip: In the counted auto-restart case, there is no need to use the abort(), because the software application will know when to stop.
143   xrt::kernel incr(device, uuid, "increment");
144   int adder1 = 20;  // arbitrarily chosen to be different from 0
145   int adder2 = 10;  // arbitrarily chosen to be different from 0
151   // start the incr kernel in auto restart mode with default adders
152   // since it is a streaming kernel it will be stalled waiting for
153   // input
154   auto incr_run = incr(xrt::autostart{3}, nullptr, nullptr, adder1);