Adder With Streams (RTL Kernel)

This example shows an adder with streams using 3 RTL kernels.

KEY CONCEPTS: RTL Kernel, Multiple RTL Kernels

This example demonstrates the use of RTL kernels for addition with stream interfaces. Kernel simply increments the input by 1 and returns the result.

RTL kernels can be integrated to Vitis using RTL Kernel Wizard. These kernels have the same software interface model as OpenCL and C/C++ kernels. That is, they are seen by the host application as functions with a void return value, scalar arguments, and pointer arguments.

The RTL Kernel Wizard automates some of the steps that need to be taken to ensure that the RTL IP is packaged into a kernel that can be integrated into a system in Vitis environment. A kernel.xml file is generated to match the software function prototype and behavior specified in the wizard.

DESIGN FILES

Application code is located in the src directory. Accelerator binary files will be compiled to the xclbin directory. The xclbin directory is required by the Makefile and its contents will be filled during compilation. A listing of all the files in this example is shown below

src/host.cpp
src/ip/ip_1/component.xml
src/ip/ip_1/src/krnl_input_stage_rtl.v
src/ip/ip_1/src/krnl_input_stage_rtl_axi_read_master.sv
src/ip/ip_1/src/krnl_input_stage_rtl_control_s_axi.v
src/ip/ip_1/src/krnl_input_stage_rtl_counter.sv
src/ip/ip_1/src/krnl_input_stage_rtl_int.sv
src/ip/ip_1/xgui/krnl_input_stage_rtl_v1_0.tcl
src/ip/ip_2/component.xml
src/ip/ip_2/src/krnl_adder_stage_rtl.v
src/ip/ip_2/src/krnl_adder_stage_rtl_adder.sv
src/ip/ip_2/src/krnl_adder_stage_rtl_control_s_axi.v
src/ip/ip_2/src/krnl_adder_stage_rtl_counter.sv
src/ip/ip_2/src/krnl_adder_stage_rtl_int.sv
src/ip/ip_2/xgui/krnl_adder_stage_rtl_v1_0.tcl
src/ip/ip_3/component.xml
src/ip/ip_3/src/krnl_output_stage_rtl.v
src/ip/ip_3/src/krnl_output_stage_rtl_axi_write_master.sv
src/ip/ip_3/src/krnl_output_stage_rtl_control_s_axi.v
src/ip/ip_3/src/krnl_output_stage_rtl_counter.sv
src/ip/ip_3/src/krnl_output_stage_rtl_int.sv
src/ip/ip_3/src/krnl_output_stage_rtl_register_slice.sv
src/ip/ip_3/xgui/krnl_output_stage_rtl_v1_0.tcl

COMMAND LINE ARGUMENTS

Once the environment has been configured, the application can be executed by

./rtl_adder_streams <adder XCLBIN>