diff --git a/minitests/roi_harness/Makefile b/minitests/roi_harness/Makefile
index 77581545..9c03896b 100644
--- a/minitests/roi_harness/Makefile
+++ b/minitests/roi_harness/Makefile
@@ -1,8 +1,12 @@
 BUILD_DIR=build
+export BUILD_DIR
+
+XRAY_PINCFG ?= BASYS3-SWBUT
+export XRAY_PINCFG
 
 # official demo configuration
 all:
-	BUILD_DIR=$(BUILD_DIR) XRAY_PINCFG=BASYS3-SWBUT ./runme.sh
+	./runme.sh
 
 clean:
 	rm -rf specimen_[0-9][0-9][0-9]/ seg_clblx.segbits vivado*.log vivado_*.str vivado*.jou design *.bits *.dcp *.bit design.txt .Xil
diff --git a/minitests/roi_harness/arty.sh b/minitests/roi_harness/arty.sh
index ffcbd0b1..7d5a3758 100644
--- a/minitests/roi_harness/arty.sh
+++ b/minitests/roi_harness/arty.sh
@@ -1,3 +1,14 @@
+# XC7A35TICSG324-1L
 export XRAY_PART=xc7a35tcsg324-1
 export XRAY_PINCFG=ARTY-A7-SWBUT
 
+# For generating DB
+export XRAY_PIN_00="G13"
+export XRAY_PIN_01="B11"
+export XRAY_PIN_02="E15"
+export XRAY_PIN_03="U12"
+export XRAY_PIN_04="D13"
+export XRAY_PIN_05="J17"
+export XRAY_PIN_06="U14"
+
+source $XRAY_DIR/utils/environment.sh