AI Engine APIs provide access methods to
read and write data from data memory, streaming data ports, and cascade streaming
ports which can be used by AI Engine kernels. For
additional details on the window and stream APIs, see Window and Streaming Data API in the
Versal ACAP AI Engine Programming Environment User Guide
(UG1076). In the following
example, the window readincr (window_readincr_v8(din)) API is used to read a window
of complex int16 data into the data vector. Similarly, readincr_v8(cin) is used to read a sample of int16 data from the
cin stream. writeincr_v4 (cas_out, v) is used to write data to a cascade stream
output.
void func(input_window_cint16 *din,
input_stream_int16 *cin,
output_stream_cacc48 *cas_out){
v8cint16 data=window_readincr_v8(din);
v8int16 coef=readincr_v8(cin);
v4cacc48 v;
…
writeincr_v4(cas_out, v);
}