1 Reply Latest reply on Jul 14, 2018 11:30 AM by GauravS_31

    canned_send example fails to run

      Hello everyone,


      I'm trying canned_send example in wwd folder for sending UDP data from CYW954907AEVAL1F to the PC. In the debug mode (wwd.canned_send-NoOS-NoNS-CYW954907AEVAL1F-debug download), the program is compiled without errors. However, on the terminal it only shows this:


      Platform CYW954907AEVAL1F initialised

      Starting Wiced vWiced_006.001.000.0040


      I traced down the code and realized that the program stops at wwd_clm.c in the following line:


      CHECK_IOCTL_BUFFER( iov_data );


      as function wwd_sdpcm_get_iovar_buffer returns Null one line before this.


      step into the function , internal_host_buffer_get returns a NULL, because the size requested is larger than internal_buffer_max_size


      so i change the pkt_buffer size in main , the wwd_sdpcm_get_iovar_buffer  works


      however another problem appears, the program loops in wwd_sdpcm_send_ioctl  ,it seems like it can not receive a sem from wifi chip when execute


      wwd_thread_poll_all( ); so the program stop here forever.


      so anybody knows the reason, please assist me with this?