Using RTL Kernels

In the host application, the RTL kernel is invoked in a similar manner as HLS kernels with a function signature such as:

void mmult(int *a, int *b, int *output)

void mmult(unsigned int length, int *a, int *b, int *output)

This implies that the RTL design must have an execution model similar to that of a software function or kernel: start, execute, and end.

It must be capable of starting when called to do so.
It must compute all data values.
It must return the data and then end the operation.

If the RTL design has a different execution model then logic must be added to ensure that the design can be executed in this manner. The RTL Kernel Wizard provides a flow that allows such changes to be performed.

For more information, see Creating RTL Kernels.