Vitis Application Acceleration Development Flow (Kernel Mode) - 2025.1 English

Configures the solution to run in support of the Vivado IP generation flow, requiring strict use of pragmas and directives, and exporting the results as Vivado IP. The command to set up the project solution for the Vivado IP flow is:

open_solution -flow_target vivado

The following table shows the original default settings of command options in the Vivado HLS tool, and the new defaults applied in the Vitis HLS tool.

Table 1. Default Control Settings
Default Control Settings	vitis_hls flow_target=vitis	vitis_hls flow_target=vivado (default flow)
`config_compile -pipeline_loops`	0	64
`config_export -vivado_optimization_level`	2	0
`set_clock_uncertainty`	12.5%	27%
`config_interface -m_axi_alignment_byte_size`	0	64
`config_interface -m_axi_latency`	0	64
`config_interface -m_axi_max_widen_bitwidth`	0	512
`config_export -vivado_phys_opt`	place	none
`config_interface -m_axi_addr64`	false	true
`config_schedule -enable_dsp_full_reg`	false	true
`config_rtl -module_auto_prefix`	false	true
`config_rtl -register_reset_num`	0	3
interface pragma defaults	ip mode	kernel mode

Vitis Application Acceleration Development Flow (Kernel Mode) - 2025.1 English - UG1399

Vitis High-Level Synthesis User Guide (UG1399)