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 streaming APIs, see Streaming Data API. 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
(cas_out, v) is used to write data to a cascade stream output.
void func(input_window_cint16 *din,
input_stream_int16 *cin,
output_cascade<cacc48> *cas_out){
v8cint16 data=window_readincr_v8(din);
v8int16 coef=readincr_v8(cin);
v4cacc48 v;
…
writeincr(cas_out, v);
}