diff --git a/example_soc/fpga/fpga_icebreaker.f b/example_soc/fpga/fpga_icebreaker.f
index 03f19af..256f5c9 100644
--- a/example_soc/fpga/fpga_icebreaker.f
+++ b/example_soc/fpga/fpga_icebreaker.f
@@ -1,5 +1,6 @@
 file fpga_icebreaker.v
 file ../libfpga/common/reset_sync.v
 file ../libfpga/common/fpga_reset.v
+list ../libfpga/common/activity_led.f
 
 list ../soc/soc.f
diff --git a/example_soc/fpga/fpga_icebreaker.v b/example_soc/fpga/fpga_icebreaker.v
index c9ac1cf..cf3d3ef 100644
--- a/example_soc/fpga/fpga_icebreaker.v
+++ b/example_soc/fpga/fpga_icebreaker.v
@@ -29,6 +29,8 @@ module fpga_icebreaker (
 	input  wire       tdi,
 	output wire       tdo,
 
+	output wire       led,
+
 	output wire       mirror_tck,
 	output wire       mirror_tms,
 	output wire       mirror_tdi,
@@ -61,6 +63,16 @@ reset_sync trst_sync_u (
 	.rst_n_out (trst_n)
 );
 
+activity_led #(
+	.WIDTH        (1 << 16),
+	.ACTIVE_LEVEL (1'b0)
+) tck_led_u (
+	.clk   (clk_sys),
+	.rst_n (rst_n_sys),
+	.i     (tck),
+	.o     (led)
+);
+
 example_soc #(
 	.MUL_FAST    (1),
 	.EXTENSION_C (0)
@@ -69,7 +81,7 @@ example_soc #(
 	.rst_n   (rst_n_sys),
 
 	.tck     (tck),
-	.trst_n  (rst_n_sys), //fixme!
+	.trst_n  (trst_n),
 	.tms     (tms),
 	.tdi     (tdi),
 	.tdo     (tdo),
diff --git a/example_soc/libfpga b/example_soc/libfpga
index f594448..0b647a3 160000
--- a/example_soc/libfpga
+++ b/example_soc/libfpga
@@ -1 +1 @@
-Subproject commit f59444817ea754d65fb3c0a0eaf7255da5c77c6b
+Subproject commit 0b647a3f8e82d93b4b1e78ec72c33ff487f00d33
diff --git a/example_soc/synth/fpga_icebreaker.pcf b/example_soc/synth/fpga_icebreaker.pcf
index 38b2d57..25dfe3e 100644
--- a/example_soc/synth/fpga_icebreaker.pcf
+++ b/example_soc/synth/fpga_icebreaker.pcf
@@ -20,6 +20,8 @@ set_io tms 19 # FTDI BDBUS3
 set_io uart_rx 15 # FTDI ADBUS0, flash SCK, iCE SCK
 set_io uart_tx 14 # FTDI ADBUS1, flash MOSI, iCE SO (if jumper J15 connected)
 
+set_io led 37 # Green on main board
+
 # SPI flash
 # set_io flash_mosi 14
 # set_io flash_miso 17