diff --git a/examples/ecp5_evn/Makefile b/examples/ecp5_evn/Makefile
index b977449..cfcaf93 100644
--- a/examples/ecp5_evn/Makefile
+++ b/examples/ecp5_evn/Makefile
@@ -3,10 +3,10 @@
 all: ${PROJ}.bit
 
 %.json: %.v
-	yosys -p "synth_ecp5 -noccu2 -nobram -nomux -json $@" $<
+	yosys -p "synth_ecp5 -json $@" $<
 
 %_out.config: %.json
-	nextpnr-ecp5 --json $< --basecfg ../../misc/basecfgs/empty_lfe5um5g-85f.config --textcfg $@ --um5g-85k --package CABGA381 --lpf ecp5evn.lpf
+	nextpnr-ecp5 --json $< --textcfg $@ --um5g-85k --package CABGA381 --lpf ecp5evn.lpf
 
 %.bit: %_out.config
 	ecppack --svf ${PROJ}.svf $< $@
diff --git a/examples/picorv32_tinyfpga/Makefile b/examples/picorv32_tinyfpga/Makefile
index d4ac46b..38c541d 100644
--- a/examples/picorv32_tinyfpga/Makefile
+++ b/examples/picorv32_tinyfpga/Makefile
@@ -11,10 +11,10 @@
 	vvp -N $<
 
 attosoc.json: io_wrapper.v attosoc.v picorv32.v firmware.hex
-	yosys -p "synth_ecp5 -noccu2 -nomux -nodram -json $@" io_wrapper.v attosoc.v picorv32.v
+	yosys -p "synth_ecp5 -json $@" io_wrapper.v attosoc.v picorv32.v
 
 attosoc_out.config: attosoc.json
-	nextpnr-ecp5 --json $< --basecfg ../../misc/basecfgs/empty_lfe5um5g-85f.config --textcfg $@ --85k --package CSFBGA285 --seed 4
+	nextpnr-ecp5 --json $< --textcfg $@ --85k --package CSFBGA285 --seed 4
 attosoc.bit: attosoc_out.config
 	ecppack $< $@
 
diff --git a/examples/picorv32_ulx3s/Makefile b/examples/picorv32_ulx3s/Makefile
index 763b293..d0e0d48 100644
--- a/examples/picorv32_ulx3s/Makefile
+++ b/examples/picorv32_ulx3s/Makefile
@@ -11,10 +11,10 @@
 	vvp -N $<
 
 attosoc.json: io_wrapper.v attosoc.v picorv32.v firmware.hex
-	yosys -p "synth_ecp5 -noccu2 -nomux -nodram -json $@" io_wrapper.v attosoc.v picorv32.v
+	yosys -p "synth_ecp5 -json $@" io_wrapper.v attosoc.v picorv32.v
 
 attosoc_out.config: attosoc.json
-	nextpnr-ecp5 --json $< --basecfg ../../misc/basecfgs/empty_lfe5u-45f.config --textcfg $@ --45k --no-tmdriv
+	nextpnr-ecp5 --json $< --textcfg $@ --45k --no-tmdriv
 
 attosoc.bit: attosoc_out.config
 	ecppack $< $@
diff --git a/examples/picorv32_versa5g/Makefile b/examples/picorv32_versa5g/Makefile
index 409ae79..f8cf004 100644
--- a/examples/picorv32_versa5g/Makefile
+++ b/examples/picorv32_versa5g/Makefile
@@ -17,10 +17,9 @@
 	nextpnr-ecp5 --json $< --basecfg ../../misc/basecfgs/empty_lfe5um5g-45f.config --textcfg $@ --um5g-45k
 
 attosoc.bit: attosoc_out.config
-	ecppack $< $@
+	ecppack --svf-rowsize 100000 --svf attosoc.svf $< $@
 
-%.svf: %.bit
-	../../tools/bit_to_svf.py $< $@
+attosoc.svf: attosoc.bit
 
 prog: attosoc.svf
 	openocd -f ../../misc/openocd/ecp5-versa5g.cfg -c "transport select jtag; init; svf $<; exit"
diff --git a/examples/soc_ecp5_evn/Makefile b/examples/soc_ecp5_evn/Makefile
index 16d763c..73d3e71 100644
--- a/examples/soc_ecp5_evn/Makefile
+++ b/examples/soc_ecp5_evn/Makefile
@@ -17,13 +17,12 @@
 	yosys -p "synth_ecp5 -json $@ -top top" top.v pll.v attosoc.v picorv32.v simpleuart.v
 
 attosoc_out.config: attosoc.json ecp5evn.lpf
-	nextpnr-ecp5 --json attosoc.json --lpf ecp5evn.lpf --basecfg ../../misc/basecfgs/empty_lfe5um5g-85f.config --textcfg $@ --um5g-85k --freq 50
+	nextpnr-ecp5 --json attosoc.json --lpf ecp5evn.lpf --textcfg $@ --um5g-85k --freq 50
 
 attosoc.bit: attosoc_out.config
-	ecppack $< $@
+	ecppack --svf-rowsize 100000 --svf attosoc.svf $< $@
 
 %.svf: %.bit
-	../../tools/bit_to_svf.py $< $@
 
 prog: attosoc.svf
 	openocd -f ../../misc/openocd/ecp5-evn.cfg -c "transport select jtag; init; svf $<; exit"
diff --git a/examples/soc_versa5g/Makefile b/examples/soc_versa5g/Makefile
index 0cf51cd..e1b37da 100644
--- a/examples/soc_versa5g/Makefile
+++ b/examples/soc_versa5g/Makefile
@@ -17,13 +17,12 @@
 	yosys -p "synth_ecp5 -json $@ -top top" top.v pll.v attosoc.v picorv32.v simpleuart.v
 
 attosoc_out.config: attosoc.json versa.lpf
-	nextpnr-ecp5 --json attosoc.json --lpf versa.lpf --basecfg ../../misc/basecfgs/empty_lfe5um5g-45f.config --textcfg $@ --um5g-45k --freq 50
+	nextpnr-ecp5 --json attosoc.json --lpf versa.lpf --textcfg $@ --um5g-45k --freq 50
 
 attosoc.bit: attosoc_out.config
-	ecppack $< $@
+	ecppack --svf-rowsize 100000 --svf attosoc.svf $< $@
 
 %.svf: %.bit
-	../../tools/bit_to_svf.py $< $@
 
 prog: attosoc.svf
 	openocd -f ../../misc/openocd/ecp5-versa5g.cfg -c "transport select jtag; init; svf $<; exit"
diff --git a/examples/tinyfpga_rev1/Makefile b/examples/tinyfpga_rev1/Makefile
index 70c3da0..0c291f2 100644
--- a/examples/tinyfpga_rev1/Makefile
+++ b/examples/tinyfpga_rev1/Makefile
@@ -6,7 +6,7 @@
 	yosys -p "synth_ecp5 -noccu2 -nomux -nodram -json $@" $<
 
 %_out.config: %.json
-	nextpnr-ecp5 --json $< --basecfg empty_85k.config --textcfg $@ --85k --package CSFBGA285
+	nextpnr-ecp5 --json $< --textcfg $@ --85k --package CSFBGA285
 
 %.bit: %_out.config
 	ecppack $< $@
diff --git a/examples/tinyfpga_rev2/Makefile b/examples/tinyfpga_rev2/Makefile
index 0ff72dd..57e6352 100644
--- a/examples/tinyfpga_rev2/Makefile
+++ b/examples/tinyfpga_rev2/Makefile
@@ -6,7 +6,7 @@
 	yosys -p "synth_ecp5 -json $@" $<
 
 %_out.config: %.json
-	nextpnr-ecp5 --json $< --basecfg ../../misc/basecfgs/empty_lfe5um5g-85f.config --textcfg $@ --um5g-85k --package CSFBGA285 --lpf morse.lpf
+	nextpnr-ecp5 --json $< --textcfg $@ --um5g-85k --package CSFBGA285 --lpf morse.lpf
 
 %.bit: %_out.config
 	ecppack $< $@
diff --git a/examples/ulx3s/Makefile b/examples/ulx3s/Makefile
index 338216d..067ba4d 100644
--- a/examples/ulx3s/Makefile
+++ b/examples/ulx3s/Makefile
@@ -1,10 +1,10 @@
 all: blinky.bit
 
 blinky.json: blinky.v
-	yosys -p "synth_ecp5 -noccu2 -nomux -nodram -json blinky.json" blinky.v
+	yosys -p "synth_ecp5 -json blinky.json" blinky.v
 
 blinky_out.config: blinky.json
-	nextpnr-ecp5 --json blinky.json --basecfg ulx3s_empty.config --textcfg blinky_out.config --45k
+	nextpnr-ecp5 --json blinky.json --textcfg blinky_out.config --45k
 
 blinky.bit: blinky_out.config
 	ecppack blinky_out.config blinky.bit
diff --git a/examples/ulx3s/ulx3s_empty.config b/examples/ulx3s/ulx3s_empty.config
deleted file mode 100644
index 815e7f0..0000000
--- a/examples/ulx3s/ulx3s_empty.config
+++ /dev/null
@@ -1,439 +0,0 @@
-.device LFE5U-45F
-
-.tile CIB_R10C3:PVT_COUNT2
-unknown: F2B0
-unknown: F3B0
-unknown: F5B0
-unknown: F11B0
-unknown: F13B0
-
-.tile CIB_R5C1:CIB_PLL1
-enum: CIB.JA3MUX 0
-enum: CIB.JB3MUX 0
-
-
-.tile CIB_R5C89:CIB_PLL1
-enum: CIB.JA3MUX 0
-enum: CIB.JB3MUX 0
-
-
-.tile CIB_R70C3:CIB_PLL3
-enum: CIB.JA3MUX 0
-enum: CIB.JB3MUX 0
-
-
-.tile CIB_R70C42:VCIB_DCU0
-enum: CIB.JA1MUX 0
-enum: CIB.JA3MUX 0
-enum: CIB.JA5MUX 0
-enum: CIB.JA7MUX 0
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JC0MUX 0
-enum: CIB.JC2MUX 0
-enum: CIB.JC4MUX 0
-enum: CIB.JC6MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C43:VCIB_DCUA
-enum: CIB.JA1MUX 0
-enum: CIB.JA3MUX 0
-enum: CIB.JA5MUX 0
-enum: CIB.JA7MUX 0
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JC0MUX 0
-enum: CIB.JC2MUX 0
-enum: CIB.JC4MUX 0
-enum: CIB.JC6MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C44:VCIB_DCUB
-enum: CIB.JA1MUX 0
-enum: CIB.JA3MUX 0
-enum: CIB.JA5MUX 0
-enum: CIB.JA7MUX 0
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JC0MUX 0
-enum: CIB.JC2MUX 0
-enum: CIB.JC4MUX 0
-enum: CIB.JC6MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C45:VCIB_DCUC
-enum: CIB.JA1MUX 0
-enum: CIB.JA3MUX 0
-enum: CIB.JA5MUX 0
-enum: CIB.JA7MUX 0
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JC0MUX 0
-enum: CIB.JC2MUX 0
-enum: CIB.JC4MUX 0
-enum: CIB.JC6MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C46:VCIB_DCUD
-enum: CIB.JA1MUX 0
-enum: CIB.JA5MUX 0
-enum: CIB.JA7MUX 0
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JC0MUX 0
-enum: CIB.JC2MUX 0
-enum: CIB.JC4MUX 0
-enum: CIB.JC6MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C47:VCIB_DCUF
-enum: CIB.JA1MUX 0
-enum: CIB.JA3MUX 0
-enum: CIB.JA5MUX 0
-enum: CIB.JA7MUX 0
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JC0MUX 0
-enum: CIB.JC2MUX 0
-enum: CIB.JC4MUX 0
-enum: CIB.JC6MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C48:VCIB_DCU3
-enum: CIB.JA5MUX 0
-enum: CIB.JA7MUX 0
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JC0MUX 0
-enum: CIB.JC4MUX 0
-enum: CIB.JC6MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C49:VCIB_DCU2
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C50:VCIB_DCUG
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C51:VCIB_DCUH
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C52:VCIB_DCUI
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C53:VCIB_DCU1
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-
-
-.tile CIB_R70C69:VCIB_DCU0
-enum: CIB.JA1MUX 0
-enum: CIB.JA3MUX 0
-enum: CIB.JA5MUX 0
-enum: CIB.JA7MUX 0
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JC0MUX 0
-enum: CIB.JC2MUX 0
-enum: CIB.JC4MUX 0
-enum: CIB.JC6MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C6:CIB_EFB0
-enum: CIB.JB3MUX 0
-enum: CIB.JC6MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C70:VCIB_DCUA
-enum: CIB.JA1MUX 0
-enum: CIB.JA3MUX 0
-enum: CIB.JA5MUX 0
-enum: CIB.JA7MUX 0
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JC0MUX 0
-enum: CIB.JC2MUX 0
-enum: CIB.JC4MUX 0
-enum: CIB.JC6MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C71:VCIB_DCUB
-enum: CIB.JA1MUX 0
-enum: CIB.JA3MUX 0
-enum: CIB.JA5MUX 0
-enum: CIB.JA7MUX 0
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JC0MUX 0
-enum: CIB.JC2MUX 0
-enum: CIB.JC4MUX 0
-enum: CIB.JC6MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C72:VCIB_DCUC
-enum: CIB.JA1MUX 0
-enum: CIB.JA3MUX 0
-enum: CIB.JA5MUX 0
-enum: CIB.JA7MUX 0
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JC0MUX 0
-enum: CIB.JC2MUX 0
-enum: CIB.JC4MUX 0
-enum: CIB.JC6MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C73:VCIB_DCUD
-enum: CIB.JA1MUX 0
-enum: CIB.JA5MUX 0
-enum: CIB.JA7MUX 0
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JC0MUX 0
-enum: CIB.JC2MUX 0
-enum: CIB.JC4MUX 0
-enum: CIB.JC6MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C74:VCIB_DCUF
-enum: CIB.JA1MUX 0
-enum: CIB.JA3MUX 0
-enum: CIB.JA5MUX 0
-enum: CIB.JA7MUX 0
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JC0MUX 0
-enum: CIB.JC2MUX 0
-enum: CIB.JC4MUX 0
-enum: CIB.JC6MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C75:VCIB_DCU3
-enum: CIB.JA5MUX 0
-enum: CIB.JA7MUX 0
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JC0MUX 0
-enum: CIB.JC4MUX 0
-enum: CIB.JC6MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C76:VCIB_DCU2
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C77:VCIB_DCUG
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C78:VCIB_DCUH
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C79:VCIB_DCUI
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB7MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD6MUX 0
-
-
-.tile CIB_R70C7:CIB_EFB1
-enum: CIB.JA3MUX 0
-enum: CIB.JA4MUX 0
-enum: CIB.JA5MUX 0
-enum: CIB.JA6MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB4MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JB6MUX 0
-enum: CIB.JC3MUX 0
-enum: CIB.JC4MUX 0
-enum: CIB.JC5MUX 0
-enum: CIB.JD3MUX 0
-enum: CIB.JD4MUX 0
-enum: CIB.JD5MUX 0
-
-
-.tile CIB_R70C80:VCIB_DCU1
-enum: CIB.JB1MUX 0
-enum: CIB.JB3MUX 0
-enum: CIB.JB5MUX 0
-enum: CIB.JD0MUX 0
-enum: CIB.JD2MUX 0
-
-
-.tile CIB_R70C87:CIB_PLL3
-enum: CIB.JA3MUX 0
-enum: CIB.JB3MUX 0
-
-
-.tile MIB_R10C40:CMUX_UL_0
-arc: G_DCS0CLK0 G_VPFN0000
-
-
-.tile MIB_R10C41:CMUX_UR_0
-arc: G_DCS0CLK1 G_VPFN0000
-
-
-.tile MIB_R58C40:CMUX_LL_0
-arc: G_DCS1CLK0 G_VPFN0000
-
-
-.tile MIB_R58C41:CMUX_LR_0
-arc: G_DCS1CLK1 G_VPFN0000
-
-
-.tile MIB_R71C4:EFB0_PICB0
-unknown: F54B1
-unknown: F56B1
-unknown: F82B1
-unknown: F94B1
-
-.tile MIB_R71C3:BANKREF8
-unknown: F18B0
-
diff --git a/examples/versa5g/Makefile b/examples/versa5g/Makefile
index 76ac577..fdb75a2 100644
--- a/examples/versa5g/Makefile
+++ b/examples/versa5g/Makefile
@@ -7,10 +7,10 @@
 	python3 make_14seg.py < text.in > pattern.vh
 
 %.json: %.v pattern.vh
-	yosys -p "synth_ecp5 -nomux -json $@" $<
+	yosys -p "synth_ecp5 -json $@" $<
 
 %_out.config: %.json
-	nextpnr-ecp5 --json $< --lpf ${CONSTR} --basecfg ../../misc/basecfgs/empty_lfe5um5g-45f.config --textcfg $@ --um5g-45k --package CABGA381
+	nextpnr-ecp5 --json $< --lpf ${CONSTR} --textcfg $@ --um5g-45k --package CABGA381
 
 %.bit: %_out.config
 	ecppack --svf-rowsize 100000 --svf ${PROJ}.svf $< $@