Due to software emulation requires PS application to synchronize AIE data to and from host memory, xrtBOSync() calls are required to synchronize them. An updated host.cpp is provided from this tutorial. Import from tutorial’s sw/host.cpp.sw_emu to ${WORKSPACE}/beamformer_ps/src/host.cpp.
The updated host.cpp contains mandatory changes to make software emulation work.
...
195 #if defined(__SYNCBO_ENABLE__)
196 xrtBOSync(cin_bohdl[0], XCL_BO_SYNC_BO_TO_DEVICE, cin_size_in_bytes, 0);
197 xrtBOSync(cin_bohdl[1], XCL_BO_SYNC_BO_TO_DEVICE, cin_size_in_bytes, 0);
198 xrtBOSync(cin_bohdl[2], XCL_BO_SYNC_BO_TO_DEVICE, cin_size_in_bytes, 0);
199 xrtBOSync(cin_bohdl[3], XCL_BO_SYNC_BO_TO_DEVICE, cin_size_in_bytes, 0);
200 xrtBOSync(cin_bohdl[4], XCL_BO_SYNC_BO_TO_DEVICE, cin_size_in_bytes, 0);
201 xrtBOSync(cin_bohdl[5], XCL_BO_SYNC_BO_TO_DEVICE, cin_size_in_bytes, 0);
202 xrtBOSync(cin_bohdl[6], XCL_BO_SYNC_BO_TO_DEVICE, cin_size_in_bytes, 0);
203 xrtBOSync(cin_bohdl[7], XCL_BO_SYNC_BO_TO_DEVICE, cin_size_in_bytes, 0);
204
205 xrtBOSync(din_bohdl[0], XCL_BO_SYNC_BO_TO_DEVICE, dlbf_din_size_in_bytes, 0);
206 xrtBOSync(din_bohdl[1], XCL_BO_SYNC_BO_TO_DEVICE, ulbf_din_size_in_bytes, 0);
207 #endif
...
274 #if defined(__SYNCBO_ENABLE__)
275 xrtBOSync(out_bohdl[0], XCL_BO_SYNC_BO_FROM_DEVICE, out_size_in_bytes, 0);
276 xrtBOSync(out_bohdl[1], XCL_BO_SYNC_BO_FROM_DEVICE, out_size_in_bytes, 0);
277 xrtBOSync(out_bohdl[2], XCL_BO_SYNC_BO_FROM_DEVICE, out_size_in_bytes, 0);
278 #endif
...
IDE needs to add __SYNCBO_ENABLE__ flag in build.
