diff --git a/lib/filter/ghdl/fir_iterative.make.inc b/lib/filter/ghdl/fir_iterative.make.inc
index 2651c55..51db48a 100644
--- a/lib/filter/ghdl/fir_iterative.make.inc
+++ b/lib/filter/ghdl/fir_iterative.make.inc
@@ -13,7 +13,7 @@ _SRC += $(FIR_ITERATIVE_LIB)/filter/src/fir_stage.vhd
 _SRC += $(FIR_ITERATIVE_LIB)/filter/src/fir_iterative.vhd
 
 
-FIR_ITERATIVE_ROOT_SRCS := $(addprefix $(_CURDIR)/,$(_SRC))
+FIR_ITERATIVE_SRCS := $(addprefix $(_CURDIR)/,$(_SRC))
 
 undefine $(_SRC)
 
diff --git a/lib/filter/ghdl/fir_parallel.make.inc b/lib/filter/ghdl/fir_parallel.make.inc
new file mode 100644
index 0000000..f561f29
--- /dev/null
+++ b/lib/filter/ghdl/fir_parallel.make.inc
@@ -0,0 +1,17 @@
+_PKG_NAME := FIR_PARALLEL
+FIR_PARALLEL_ROOT := ../../..
+FIR_PARALLEL_LIB := $(FIR_PARALLEL_ROOT)/lib
+
+_CURDIR = $(shell dirname $(lastword $(MAKEFILE_LIST)))
+
+_SRC := $(FIR_PARALLEL_LIB)/misc/utils_pkg.vhd
+_SRC += $(FIR_PARALLEL_LIB)/fixed/ieee_proposed/fixed_util_pkg.vhd
+_SRC += $(FIR_PARALLEL_LIB)/filter/src/filter_pkg.vhd
+_SRC += $(FIR_PARALLEL_LIB)/filter/src/fir_pkg.vhd
+_SRC += $(FIR_PARALLEL_LIB)/filter/src/fir_stage.vhd
+_SRC += $(FIR_PARALLEL_LIB)/filter/src/fir_parallel.vhd
+
+FIR_PARALLEL_SRCS := $(addprefix $(_CURDIR)/,$(_SRC))
+
+undefine $(_SRC)
+
diff --git a/lib/filter/ghdl/tb_fir_iterative.make b/lib/filter/ghdl/tb_fir_iterative.make
index d37663e..8c815a9 100644
--- a/lib/filter/ghdl/tb_fir_iterative.make
+++ b/lib/filter/ghdl/tb_fir_iterative.make
@@ -5,7 +5,7 @@ LIB_PATH := $(ROOT_PATH)/lib
 
 SRCS += $(LIB_PATH)/PCK_FIO-2002.7/PCK_FIO_1993.vhd
 SRCS += $(LIB_PATH)/PCK_FIO-2002.7/PCK_FIO_1993_BODY.vhd
-SRCS += $(FIR_ITERATIVE_ROOT_SRCS)
+SRCS += $(FIR_ITERATIVE_SRCS)
 SRCS += $(LIB_PATH)/filter/src/tb_fir_iterative.vhd
 
 # Compile
diff --git a/lib/filter/ghdl/tb_fir_parallel.gtkw b/lib/filter/ghdl/tb_fir_parallel.gtkw
new file mode 100644
index 0000000..bf55ef6
--- /dev/null
+++ b/lib/filter/ghdl/tb_fir_parallel.gtkw
@@ -0,0 +1,24 @@
+[*]
+[*] GTKWave Analyzer v3.3.104 (w)1999-2020 BSI
+[*] Tue Mar 23 06:55:49 2021
+[*]
+[dumpfile] "/home/jens/work/vhdl/trunk/lib/filter/ghdl/build/tb_fir_parallel/tb_fir_parallel.vcd"
+[dumpfile_mtime] "Tue Mar 23 06:54:46 2021"
+[dumpfile_size] 18152658
+[savefile] "/home/jens/work/vhdl/trunk/lib/filter/ghdl/build/tb_fir_parallel/tb_fir_parallel.gtkw"
+[timestart] 0
+[size] 1856 1136
+[pos] -39 -39
+*-34.678261 46700000000 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
+[sst_width] 233
+[signals_width] 118
+[sst_expanded] 1
+[sst_vpaned_height] 331
+@28
+tb_fir_parallel.clk
+tb_fir_parallel.srst
+@8421
+tb_fir_parallel.x_in[15:0]
+tb_fir_parallel.y_out[15:0]
+[pattern_trace] 1
+[pattern_trace] 0
diff --git a/lib/filter/ghdl/tb_fir_parallel.make b/lib/filter/ghdl/tb_fir_parallel.make
new file mode 100644
index 0000000..0b5ea1b
--- /dev/null
+++ b/lib/filter/ghdl/tb_fir_parallel.make
@@ -0,0 +1,19 @@
+include fir_parallel.make.inc
+
+ROOT_PATH := ../../..
+LIB_PATH := $(ROOT_PATH)/lib
+
+SRCS += $(LIB_PATH)/PCK_FIO-2002.7/PCK_FIO_1993.vhd
+SRCS += $(LIB_PATH)/PCK_FIO-2002.7/PCK_FIO_1993_BODY.vhd
+SRCS += $(FIR_PARALLEL_SRCS)
+SRCS += $(LIB_PATH)/filter/src/tb_fir_parallel.vhd
+
+# Compile
+TARGET := tb_fir_parallel
+ENTITY := tb_fir_parallel
+WITH_VCD := y
+GHDL_OPTS := -P$(LIB_PATH)/fixed/ieee_proposed/build/fixed_pkg/ieee_proposed
+RUN_TIME := 200us
+
+include $(ROOT_PATH)/Common/make/ghdl.mk
+
diff --git a/lib/filter/ghdl/wav_in.dat b/lib/filter/ghdl/wav_in.dat
new file mode 100644
index 0000000..b4fc7bd
Binary files /dev/null and b/lib/filter/ghdl/wav_in.dat differ