8. Match enable_tkeep, enable_tstrb, and strict to the kernel - 8. Match enable_tkeep, enable_tstrb, and strict to the kernel - 2026.1 English

8. Match enable_tkeep, enable_tstrb, and strict to the kernel - 8. Match enable_tkeep, enable_tstrb, and strict to the kernel - 2026.1 English - UG1864

Vitis Functional Simulation User Guide (UG1864)

Document_ID

UG1864

Release_Date

2026-06-23

Version

2026.1 English

If your HLS kernel disables sideband fields or uses strict mode, your varray axis must match. Common configurations are as follows:

# Python — TLAST-only
cfg = va.axis(enable_tkeep=False, enable_tstrb=False)

# Python — strict mode
cfg = va.axis(strict=True)

% MATLAB — TLAST-only
cfg = varray.axis(enable_tkeep=false, enable_tstrb=false);

% MATLAB — strict mode
cfg = varray.axis(strict=true);