Pipe tx samples to file

should be reverted later on

executables/nr-ru.c

@@ -783,6 +783,11 @@ void tx_rf(RU_t *ru,int frame,int slot, uint64_t timestamp) {
 	    (long long unsigned int)timestamp,frame,proc->frame_tx_unwrap,slot, txs);
       VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 0 );
       //AssertFatal(txs == 0,"trx write function error %d\n", txs);
+      if (slot == (fp->slots_per_frame-1)) {
+        FILE *tx_wr_p = fopen("tx_write.raw","wba");
+        fwrite(&ru->common.txdata[0][0],sizeof(short),fp->samples_per_frame*2,tx_wr_p);
+        fclose(tx_wr_p);
+      }
   }
 }