diff --git a/lib/uart/ghdl/tb_uart.gtkw b/lib/uart/ghdl/tb_uart.gtkw
index e69de29..33b5d78 100644
--- a/lib/uart/ghdl/tb_uart.gtkw
+++ b/lib/uart/ghdl/tb_uart.gtkw
@@ -0,0 +1,34 @@
+[*]
+[*] GTKWave Analyzer v3.3.104 (w)1999-2020 BSI
+[*] Sat Apr  3 13:05:58 2021
+[*]
+[dumpfile] "/home/jens/work/vhdl/trunk/lib/uart/ghdl/build/tb_uart/tb_uart.fst"
+[dumpfile_mtime] "Sat Apr  3 13:05:47 2021"
+[dumpfile_size] 8446
+[savefile] "/home/jens/work/vhdl/trunk/lib/uart/ghdl/build/tb_uart/tb_uart.gtkw"
+[timestart] 0
+[size] 1000 600
+[pos] -1 -1
+*-38.115555 340000000000 -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] 126
+[sst_expanded] 1
+[sst_vpaned_height] 144
+@28
+dut.clk
+@22
+dut.din[7:0]
+dut.dout[7:0]
+@28
+dut.rx_full
+dut.rx_half_full
+dut.ser_rx
+dut.ser_tx
+dut.tx_complete
+dut.tx_empty
+dut.tx_full
+dut.tx_half_full
+@29
+dut.we
+[pattern_trace] 1
+[pattern_trace] 0