moving gpio control to the rx

executables/nr-ru.c

@@ -747,7 +747,7 @@ void tx_rf(RU_t *ru,int frame,int slot, uint64_t timestamp) {
       // the beam index is written in bits 8-10 of the flags
       // bit 11 enables the gpio programming
       int beam=0;
-      if (slot==0) beam = 11; //3 for boresight & 8 to enable
+      //if (slot==0) beam = 11; //3 for boresight & 8 to enable
       /*
       if (slot==0 || slot==40) beam=0&8;
       if (slot==10 || slot==50) beam=1&8;

targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp

@@ -69,7 +69,7 @@
 /** @addtogroup _USRP_PHY_RF_INTERFACE_
  * @{
  */
-
+int gpio789=0;
 extern int usrp_tx_thread;
 
 
@@ -708,6 +708,12 @@ static int trx_usrp_read(openair0_device *device, openair0_timestamp *ptimestamp
   s->rx_timestamp = s->rx_md.time_spec.to_ticks(s->sample_rate);
   *ptimestamp = s->rx_timestamp;
 
+  // push GPIO bits 7-9 from flags_msb
+   s->usrp->set_command_time(uhd::time_spec_t::from_ticks((s->rx_timestamp+(2*nsamps)),s->sample_rate));
+   s->usrp->set_gpio_attr("FP0", "OUT", gpio789<<7, 0x380);
+   s->usrp->clear_command_time();
+   gpio789 = (gpio789+1)&7;
+
   if (device->recplay_state != NULL) { // record mode
     // Copy subframes to memory (later dump on a file)
     if (device->recplay_state->nb_samples < device->openair0_cfg->recplay_conf->u_sf_max) {