layer1_SRCS=avg.c agc.c afc.c sync.c tdma_sched.c tpu_window.c init.c l23_api.c \
mframe_sched.c sched_gsmtime.c async.c rfch.c
-layer1_SRCS += prim_pm.c prim_rach.c prim_tx_nb.c prim_rx_nb.c prim_fbsb.c
+layer1_SRCS += prim_pm.c prim_rach.c prim_tx_nb.c prim_rx_nb.c prim_fbsb.c \
+ prim_freq.c