diff --git a/hardware/ecp5_mainboard/debug.sch b/hardware/ecp5_mainboard/debug.sch
new file mode 100644
index 0000000..8c66a91
--- /dev/null
+++ b/hardware/ecp5_mainboard/debug.sch
@@ -0,0 +1,1120 @@
+EESchema Schematic File Version 4
+LIBS:ecp5_mainboard-cache
+EELAYER 26 0
+EELAYER END
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+Wire Wire Line
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+Connection ~ 3600 6550
+Wire Wire Line
+	4500 6550 3850 6550
+Wire Wire Line
+	3850 6850 4500 6850
+Text GLabel 4500 6850 2    50   Output ~ 0
+FPGA_12MHz
+$Comp
+L power:GND #PWR?
+U 1 1 6288C3DD
+P 3050 6950
+F 0 "#PWR?" H 3050 6700 50  0001 C CNN
+F 1 "GND" H 3055 6777 50  0000 C CNN
+F 2 "" H 3050 6950 50  0001 C CNN
+F 3 "" H 3050 6950 50  0001 C CNN
+	1    3050 6950
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	3050 6950 3050 6850
+NoConn ~ 2750 6550
+$Comp
+L power:+3V3 #PWR?
+U 1 1 628966AF
+P 3050 6100
+F 0 "#PWR?" H 3050 5950 50  0001 C CNN
+F 1 "+3V3" H 3065 6273 50  0000 C CNN
+F 2 "" H 3050 6100 50  0001 C CNN
+F 3 "" H 3050 6100 50  0001 C CNN
+	1    3050 6100
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	3050 6100 3050 6150
+$Comp
+L Device:C_Small C?
+U 1 1 6289B983
+P 2800 6150
+F 0 "C?" V 2571 6150 50  0000 C CNN
+F 1 "100n" V 2662 6150 50  0000 C CNN
+F 2 "" H 2800 6150 50  0001 C CNN
+F 3 "~" H 2800 6150 50  0001 C CNN
+	1    2800 6150
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	2900 6150 3050 6150
+Connection ~ 3050 6150
+Wire Wire Line
+	3050 6150 3050 6250
+$Comp
+L power:GND #PWR?
+U 1 1 628A0E36
+P 2550 6150
+F 0 "#PWR?" H 2550 5900 50  0001 C CNN
+F 1 "GND" V 2555 6022 50  0000 R CNN
+F 2 "" H 2550 6150 50  0001 C CNN
+F 3 "" H 2550 6150 50  0001 C CNN
+	1    2550 6150
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	2550 6150 2700 6150
+NoConn ~ 4850 5550
+Wire Wire Line
+	4850 5750 4750 5750
+Wire Wire Line
+	4750 5750 4750 6300
+Wire Wire Line
+	4750 6300 5450 6300
+Connection ~ 5450 6300
+$Comp
+L eco_memory:93AA46B_OT U?
+U 1 1 628C86C1
+P 3000 5400
+F 0 "U?" H 3000 5815 50  0000 C CNN
+F 1 "93AA46B_OT" H 3000 5724 50  0000 C CNN
+F 2 "" H 3000 5400 50  0001 C CNN
+F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/20001749K.pdf" H 3000 5400 50  0001 C CNN
+	1    3000 5400
+	-1   0    0    -1  
+$EndComp
+$Comp
+L power:+3V3 #PWR?
+U 1 1 628D3E7E
+P 2150 5000
+F 0 "#PWR?" H 2150 4850 50  0001 C CNN
+F 1 "+3V3" H 2165 5173 50  0000 C CNN
+F 2 "" H 2150 5000 50  0001 C CNN
+F 3 "" H 2150 5000 50  0001 C CNN
+	1    2150 5000
+	1    0    0    -1  
+$EndComp
+$Comp
+L power:GND #PWR?
+U 1 1 628D9AFB
+P 2150 5750
+F 0 "#PWR?" H 2150 5500 50  0001 C CNN
+F 1 "GND" H 2155 5577 50  0000 C CNN
+F 2 "" H 2150 5750 50  0001 C CNN
+F 3 "" H 2150 5750 50  0001 C CNN
+	1    2150 5750
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	2150 5750 2150 5550
+Wire Wire Line
+	2150 5550 2300 5550
+Wire Wire Line
+	2150 5000 2150 5100
+Wire Wire Line
+	2150 5250 2300 5250
+$Comp
+L Device:C_Small C?
+U 1 1 628F180E
+P 2150 5400
+F 0 "C?" H 2242 5446 50  0000 L CNN
+F 1 "470n" H 2242 5355 50  0000 L CNN
+F 2 "" H 2150 5400 50  0001 C CNN
+F 3 "~" H 2150 5400 50  0001 C CNN
+	1    2150 5400
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	2150 5300 2150 5250
+Connection ~ 2150 5250
+Wire Wire Line
+	2150 5550 2150 5500
+Connection ~ 2150 5550
+Wire Wire Line
+	3700 5250 3750 5250
+Wire Wire Line
+	3750 5250 3750 4650
+Wire Wire Line
+	3750 4650 4850 4650
+Wire Wire Line
+	3700 5350 3850 5350
+Wire Wire Line
+	3850 5350 3850 4750
+Wire Wire Line
+	3850 4750 4850 4750
+Wire Wire Line
+	4850 4850 4250 4850
+Wire Wire Line
+	4250 4850 4250 5450
+Wire Wire Line
+	4250 5450 3700 5450
+$Comp
+L Device:R_Small R?
+U 1 1 62926020
+P 4100 5550
+F 0 "R?" V 4200 5550 50  0000 C CNN
+F 1 "2.2k" V 4100 5550 50  0000 C CNN
+F 2 "" H 4100 5550 50  0001 C CNN
+F 3 "~" H 4100 5550 50  0001 C CNN
+	1    4100 5550
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	4200 5550 4250 5550
+Wire Wire Line
+	4250 5550 4250 5450
+Connection ~ 4250 5450
+Wire Wire Line
+	4000 5550 3950 5550
+$Comp
+L Device:R_Pack04 RN?
+U 1 1 62959301
+P 3050 4750
+F 0 "RN?" V 2633 4750 50  0000 C CNN
+F 1 "10k" V 2724 4750 50  0000 C CNN
+F 2 "" V 3325 4750 50  0001 C CNN
+F 3 "~" H 3050 4750 50  0001 C CNN
+	1    3050 4750
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	2850 4850 2550 4850
+Wire Wire Line
+	2550 4850 2550 5100
+Wire Wire Line
+	2550 5100 2150 5100
+Connection ~ 2150 5100
+Wire Wire Line
+	2150 5100 2150 5250
+Wire Wire Line
+	2850 4750 2550 4750
+Wire Wire Line
+	2550 4750 2550 4850
+Connection ~ 2550 4850
+Wire Wire Line
+	2550 4750 2550 4650
+Wire Wire Line
+	2550 4650 2850 4650
+Connection ~ 2550 4750
+Wire Wire Line
+	2850 4550 2550 4550
+Wire Wire Line
+	2550 4550 2550 4650
+Connection ~ 2550 4650
+NoConn ~ 3250 4850
+Wire Wire Line
+	3950 4550 3950 5550
+Wire Wire Line
+	3250 4550 3950 4550
+Connection ~ 3950 5550
+Wire Wire Line
+	3950 5550 3700 5550
+Wire Wire Line
+	3250 4650 3750 4650
+Connection ~ 3750 4650
+Wire Wire Line
+	3850 4750 3250 4750
+Connection ~ 3850 4750
+$Comp
+L Device:R_Small R?
+U 1 1 629CA0DA
+P 7550 2050
+F 0 "R?" V 7500 2200 50  0000 C CNN
+F 1 "0R" V 7550 2050 50  0000 C CNN
+F 2 "" H 7550 2050 50  0001 C CNN
+F 3 "~" H 7550 2050 50  0001 C CNN
+	1    7550 2050
+	0    1    1    0   
+$EndComp
+$Comp
+L Device:R_Small R?
+U 1 1 629CA3A0
+P 7550 2150
+F 0 "R?" V 7500 2300 50  0000 C CNN
+F 1 "0R" V 7550 2150 50  0000 C CNN
+F 2 "" H 7550 2150 50  0001 C CNN
+F 3 "~" H 7550 2150 50  0001 C CNN
+	1    7550 2150
+	0    1    1    0   
+$EndComp
+$Comp
+L Device:R_Small R?
+U 1 1 629CA3F0
+P 7550 2250
+F 0 "R?" V 7500 2400 50  0000 C CNN
+F 1 "0R" V 7550 2250 50  0000 C CNN
+F 2 "" H 7550 2250 50  0001 C CNN
+F 3 "~" H 7550 2250 50  0001 C CNN
+	1    7550 2250
+	0    1    1    0   
+$EndComp
+$Comp
+L Device:R_Small R?
+U 1 1 629CA43E
+P 7550 2350
+F 0 "R?" V 7500 2500 50  0000 C CNN
+F 1 "0R" V 7550 2350 50  0000 C CNN
+F 2 "" H 7550 2350 50  0001 C CNN
+F 3 "~" H 7550 2350 50  0001 C CNN
+	1    7550 2350
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	7450 2050 7250 2050
+Wire Wire Line
+	7250 2150 7450 2150
+Wire Wire Line
+	7450 2250 7250 2250
+Wire Wire Line
+	7250 2350 7450 2350
+Wire Wire Line
+	7250 2450 7400 2450
+$Comp
+L Device:LED D?
+U 1 1 62A0225B
+P 7950 2700
+F 0 "D?" H 7941 2916 50  0000 C CNN
+F 1 "GREEN" H 7941 2825 50  0000 C CNN
+F 2 "" H 7950 2700 50  0001 C CNN
+F 3 "~" H 7950 2700 50  0001 C CNN
+	1    7950 2700
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	7400 2450 7400 2700
+Wire Wire Line
+	7400 2700 7800 2700
+$Comp
+L Device:R_Small R?
+U 1 1 62A15473
+P 8350 2700
+F 0 "R?" V 8154 2700 50  0000 C CNN
+F 1 "1.5k" V 8245 2700 50  0000 C CNN
+F 2 "" H 8350 2700 50  0001 C CNN
+F 3 "~" H 8350 2700 50  0001 C CNN
+	1    8350 2700
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	8100 2700 8250 2700
+$Comp
+L power:+3V3 #PWR?
+U 1 1 62A324BE
+P 8600 2700
+F 0 "#PWR?" H 8600 2550 50  0001 C CNN
+F 1 "+3V3" V 8615 2828 50  0000 L CNN
+F 2 "" H 8600 2700 50  0001 C CNN
+F 3 "" H 8600 2700 50  0001 C CNN
+	1    8600 2700
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	8450 2700 8600 2700
+Text Label 7450 2700 0    50   ~ 0
+JTAG_ACT
+Wire Wire Line
+	7650 2050 7800 2050
+Wire Wire Line
+	7650 2150 8400 2150
+Wire Wire Line
+	8400 2250 7650 2250
+Wire Wire Line
+	8400 2350 7650 2350
+$Comp
+L Device:R_Small R?
+U 1 1 62A6E2E2
+P 7550 1900
+F 0 "R?" V 7500 2050 50  0000 C CNN
+F 1 "10k" V 7550 1900 50  0000 C CNN
+F 2 "" H 7550 1900 50  0001 C CNN
+F 3 "~" H 7550 1900 50  0001 C CNN
+	1    7550 1900
+	0    1    1    0   
+$EndComp
+$Comp
+L power:GND #PWR?
+U 1 1 62A6E69A
+P 7400 1900
+F 0 "#PWR?" H 7400 1650 50  0001 C CNN
+F 1 "GND" V 7405 1772 50  0000 R CNN
+F 2 "" H 7400 1900 50  0001 C CNN
+F 3 "" H 7400 1900 50  0001 C CNN
+	1    7400 1900
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	7400 1900 7450 1900
+Wire Wire Line
+	7650 1900 7800 1900
+Wire Wire Line
+	7800 1900 7800 2050
+Connection ~ 7800 2050
+Wire Wire Line
+	7800 2050 8400 2050
+Text GLabel 8400 2050 2    50   Output ~ 0
+JTAG_TCK
+Text GLabel 8400 2150 2    50   Input ~ 0
+JTAG_TDI
+Text GLabel 8400 2250 2    50   Output ~ 0
+JTAG_TDO
+Text GLabel 8400 2350 2    50   Output ~ 0
+JTAG_TMS
+$EndSCHEMATC
diff --git a/hardware/ecp5_mainboard/ecp5_mainboard-cache.lib b/hardware/ecp5_mainboard/ecp5_mainboard-cache.lib
index 716eb56..0a8c379 100644
--- a/hardware/ecp5_mainboard/ecp5_mainboard-cache.lib
+++ b/hardware/ecp5_mainboard/ecp5_mainboard-cache.lib
@@ -27,6 +27,86 @@ X ~ 3 300 0 100 L 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
+# Connector:USB_C_Receptacle
+#
+DEF Connector:USB_C_Receptacle J 0 40 Y Y 1 F N
+F0 "J" -400 1450 50 H V L CNN
+F1 "Connector:USB_C_Receptacle" 400 1450 50 H V R CNN
+F2 "" 150 0 50 H I C CNN
+F3 "" 150 0 50 H I C CNN
+$FPLIST
+ USB*C*Receptacle*
+$ENDFPLIST
+DRAW
+A -275 -150 75 -1799 -1 0 1 20 N -350 -150 -200 -150
+A -275 -150 25 -1799 -1 0 1 10 N -300 -150 -250 -150
+A -275 -150 25 -1799 -1 0 1 10 F -300 -150 -250 -150
+A -275 150 25 1 1799 0 1 10 F -250 150 -300 150
+A -275 150 25 1 1799 0 1 10 N -250 150 -300 150
+A -275 150 75 1 1799 0 1 20 N -200 150 -350 150
+C -130 175 25 0 1 10 F
+T 900 -30 -175 200 0 0 0 SS Italic 1 C C
+S -210 -1400 -190 -1360 0 0 0 N
+S -110 -1400 -90 -1360 0 0 0 N
+S -10 -1400 10 -1360 0 0 0 N
+S 90 -1400 110 -1360 0 0 0 N
+S 400 -1290 360 -1310 0 0 0 N
+S 400 -1190 360 -1210 0 0 0 N
+S 400 -990 360 -1010 0 0 0 N
+S 400 -890 360 -910 0 0 0 N
+S 400 -690 360 -710 0 0 0 N
+S 400 -590 360 -610 0 0 0 N
+S 400 -390 360 -410 0 0 0 N
+S 400 -290 360 -310 0 0 0 N
+S 400 -90 360 -110 0 0 0 N
+S 400 10 360 -10 0 0 0 N
+S 400 210 360 190 0 0 0 N
+S 400 310 360 290 0 0 0 N
+S 400 410 360 390 0 0 0 N
+S 400 510 360 490 0 0 0 N
+S 400 710 360 690 0 0 0 N
+S 400 810 360 790 0 0 0 N
+S 400 1010 360 990 0 0 0 N
+S 400 1110 360 1090 0 0 0 N
+S 400 1210 360 1190 0 0 0 N
+S 400 1310 360 1290 0 0 0 N
+S -400 1400 400 -1400 0 1 10 f
+S -300 -150 -250 150 0 1 10 F
+S 45 200 95 250 0 1 10 F
+P 2 0 1 20 -350 -150 -350 150 N
+P 2 0 1 20 -200 150 -200 -150 N
+P 2 0 1 20 -30 -50 -30 300 N
+P 3 0 1 20 -30 0 -130 100 -130 150 N
+P 3 0 1 20 -30 50 70 150 70 200 N
+P 4 0 1 10 -80 300 -30 400 20 300 -80 300 F
+X GND A1 -200 -1600 200 U 50 50 1 1 W
+X RX2- A10 600 -600 200 L 50 50 1 1 B
+X RX2+ A11 600 -700 200 L 50 50 1 1 B
+X GND A12 -100 -1600 200 U 50 50 1 1 W
+X TX1+ A2 600 -400 200 L 50 50 1 1 B
+X TX1- A3 600 -300 200 L 50 50 1 1 B
+X VBUS A4 600 1300 200 L 50 50 1 1 W
+X CC1 A5 600 800 200 L 50 50 1 1 B
+X D+ A6 600 300 200 L 50 50 1 1 B
+X D- A7 600 500 200 L 50 50 1 1 B
+X SBU1 A8 600 -1200 200 L 50 50 1 1 B
+X VBUS A9 600 1200 200 L 50 50 1 1 W
+X GND B1 0 -1600 200 U 50 50 1 1 W
+X RX1- B10 600 0 200 L 50 50 1 1 B
+X RX1+ B11 600 -100 200 L 50 50 1 1 B
+X GND B12 100 -1600 200 U 50 50 1 1 W
+X TX2+ B2 600 -1000 200 L 50 50 1 1 B
+X TX2- B3 600 -900 200 L 50 50 1 1 B
+X VBUS B4 600 1100 200 L 50 50 1 1 W
+X CC2 B5 600 700 200 L 50 50 1 1 B
+X D+ B6 600 200 200 L 50 50 1 1 B
+X D- B7 600 400 200 L 50 50 1 1 B
+X SBU2 B8 600 -1300 200 L 50 50 1 1 B
+X VBUS B9 600 1000 200 L 50 50 1 1 W
+X SHIELD S1 -300 -1600 200 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
 # Device:CP
 #
 DEF Device:CP C 0 10 N Y 1 F N
@@ -1046,6 +1126,106 @@ X REFCLKN_D1 AM24 0 -900 200 R 50 50 12 1 B
 ENDDRAW
 ENDDEF
 #
+# Interface_USB:FT2232H
+#
+DEF Interface_USB:FT2232H U 0 40 Y Y 1 F N
+F0 "U" -1050 2100 50 H V L CNN
+F1 "Interface_USB:FT2232H" 750 2100 50 H V L CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ QFN*
+ LQFP*
+$ENDFPLIST
+DRAW
+S -1050 -2050 1050 2050 0 1 10 f
+X GND 1 -400 -2200 150 U 50 50 1 1 W
+X AGND 10 -600 -2200 150 U 50 50 1 1 W
+X GND 11 -200 -2200 150 U 50 50 1 1 W
+X VCORE 12 -200 2200 150 D 50 50 1 1 W
+X TEST 13 -1200 -1800 150 R 50 50 1 1 I
+X ~RESET 14 -1200 400 150 R 50 50 1 1 I
+X GND 15 -100 -2200 150 U 50 50 1 1 W
+X ADBUS0 16 1200 1900 150 L 50 50 1 1 B
+X ADBUS1 17 1200 1800 150 L 50 50 1 1 B
+X ADBUS2 18 1200 1700 150 L 50 50 1 1 B
+X ADBUS3 19 1200 1600 150 L 50 50 1 1 B
+X OSCI 2 -1200 -1200 150 R 50 50 1 1 I
+X VCCIO 20 200 2200 150 D 50 50 1 1 W
+X ADBUS4 21 1200 1500 150 L 50 50 1 1 B
+X ADBUS5 22 1200 1400 150 L 50 50 1 1 B
+X ADBUS6 23 1200 1300 150 L 50 50 1 1 B
+X ADBUS7 24 1200 1200 150 L 50 50 1 1 B
+X GND 25 0 -2200 150 U 50 50 1 1 W
+X ACBUS0 26 1200 1000 150 L 50 50 1 1 B
+X ACBUS1 27 1200 900 150 L 50 50 1 1 B
+X ACBUS2 28 1200 800 150 L 50 50 1 1 B
+X ACBUS3 29 1200 700 150 L 50 50 1 1 B
+X OSCO 3 -1200 -1600 150 R 50 50 1 1 O
+X ACBUS4 30 1200 600 150 L 50 50 1 1 B
+X VCCIO 31 300 2200 150 D 50 50 1 1 W
+X ACBUS5 32 1200 500 150 L 50 50 1 1 B
+X ACBUS6 33 1200 400 150 L 50 50 1 1 B
+X ACBUS7 34 1200 300 150 L 50 50 1 1 B
+X GND 35 100 -2200 150 U 50 50 1 1 W
+X ~SUSPEND 36 1200 -1800 150 L 50 50 1 1 O
+X VCORE 37 -100 2200 150 D 50 50 1 1 W
+X BDBUS0 38 1200 100 150 L 50 50 1 1 B
+X BDBUS1 39 1200 0 150 L 50 50 1 1 B
+X VPHY 4 -500 2200 150 D 50 50 1 1 W
+X BDBUS2 40 1200 -100 150 L 50 50 1 1 B
+X BDBUS3 41 1200 -200 150 L 50 50 1 1 B
+X VCCIO 42 400 2200 150 D 50 50 1 1 W
+X BDBUS4 43 1200 -300 150 L 50 50 1 1 B
+X BDBUS5 44 1200 -400 150 L 50 50 1 1 B
+X BDBUS6 45 1200 -500 150 L 50 50 1 1 B
+X BDBUS7 46 1200 -600 150 L 50 50 1 1 B
+X GND 47 200 -2200 150 U 50 50 1 1 W
+X BCBUS0 48 1200 -800 150 L 50 50 1 1 B
+X VREGOUT 49 -1200 1700 150 R 50 50 1 1 w
+X GND 5 -300 -2200 150 U 50 50 1 1 W
+X VREGIN 50 -1200 1900 150 R 50 50 1 1 W
+X GND 51 300 -2200 150 U 50 50 1 1 W
+X BCBUS1 52 1200 -900 150 L 50 50 1 1 B
+X BCBUS2 53 1200 -1000 150 L 50 50 1 1 B
+X BCBUS3 54 1200 -1100 150 L 50 50 1 1 B
+X BCBUS4 55 1200 -1200 150 L 50 50 1 1 B
+X VCCIO 56 500 2200 150 D 50 50 1 1 W
+X BCBUS5 57 1200 -1300 150 L 50 50 1 1 B
+X BCBUS6 58 1200 -1400 150 L 50 50 1 1 B
+X BCBUS7 59 1200 -1500 150 L 50 50 1 1 B
+X REF 6 -1200 600 150 R 50 50 1 1 O
+X ~PWREN 60 1200 -1700 150 L 50 50 1 1 O
+X EEDATA 61 -1200 -900 150 R 50 50 1 1 B
+X EECLK 62 -1200 -800 150 R 50 50 1 1 O
+X EECS 63 -1200 -700 150 R 50 50 1 1 O
+X VCORE 64 0 2200 150 D 50 50 1 1 W
+X DM 7 -1200 900 150 R 50 50 1 1 B
+X DP 8 -1200 800 150 R 50 50 1 1 B
+X VPLL 9 -400 2200 150 D 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# Oscillator:XO32
+#
+DEF Oscillator:XO32 X 0 10 Y Y 1 F N
+F0 "X" -200 250 50 H V L CNN
+F1 "Oscillator:XO32" 50 -250 50 H V L CNN
+F2 "Oscillator:Oscillator_SMD_EuroQuartz_XO32-4Pin_3.2x2.5mm" 700 -350 50 H I C CNN
+F3 "" -100 0 50 H I C CNN
+$FPLIST
+ Oscillator*SMD*EuroQuartz*XO32*3.2x2.5mm*
+$ENDFPLIST
+DRAW
+S -200 200 200 -200 0 1 10 f
+P 10 0 1 0 -50 -30 -40 -30 -40 30 -20 30 -20 -30 0 -30 0 30 20 30 20 -30 30 -30 N
+X EN 1 -300 0 100 R 50 50 1 1 I
+X GND 2 0 -300 100 U 50 50 1 1 W
+X OUT 3 300 0 100 L 50 50 1 1 O
+X V+ 4 0 300 100 D 50 50 1 1 W
+ENDDRAW
+ENDDEF
+#
 # Power_Supervisor:LM3880
 #
 DEF Power_Supervisor:LM3880 U 0 20 Y Y 1 F N
@@ -1145,6 +1325,27 @@ X D 3 100 200 100 D 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
+# eco_memory:93AA46B_OT
+#
+DEF eco_memory:93AA46B_OT U 0 40 Y Y 1 F N
+F0 "U" 0 50 50 H V C CNN
+F1 "eco_memory:93AA46B_OT" 0 -50 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ SOT-23-6
+$ENDFPLIST
+DRAW
+S 500 250 -500 -250 0 1 0 f
+X DO 1 -700 -150 200 R 50 50 1 1 O
+X GND 2 700 -150 200 L 50 50 1 1 W
+X DI 3 -700 -50 200 R 50 50 1 1 I
+X CLK 4 -700 50 200 R 50 50 1 1 I
+X CS 5 -700 150 200 R 50 50 1 1 I
+X Vcc 6 700 150 200 L 50 50 1 1 W
+ENDDRAW
+ENDDEF
+#
 # eco_power:LM21212-2
 #
 DEF eco_power:LM21212-2 U 0 40 Y Y 1 F N
diff --git a/hardware/ecp5_mainboard/ecp5_mainboard.sch b/hardware/ecp5_mainboard/ecp5_mainboard.sch
index fcc0dd5..159ffca 100644
--- a/hardware/ecp5_mainboard/ecp5_mainboard.sch
+++ b/hardware/ecp5_mainboard/ecp5_mainboard.sch
@@ -4,7 +4,7 @@ EELAYER 26 0
 EELAYER END
 $Descr A4 11693 8268
 encoding utf-8
-Sheet 1 3
+Sheet 1 4
 Title ""
 Date ""
 Rev ""
@@ -26,4 +26,10 @@ U 5B5F5F9A
 F0 "FPGA Core Power" 50
 F1 "fpga_pwr.sch" 50
 $EndSheet
+$Sheet
+S 1000 2300 2400 800 
+U 62793184
+F0 "Debug Interface" 50
+F1 "debug.sch" 50
+$EndSheet
 $EndSCHEMATC
diff --git a/hardware/ecp5_mainboard/fpga_pwr.sch b/hardware/ecp5_mainboard/fpga_pwr.sch
index 2d3821d..7ad4bcb 100644
--- a/hardware/ecp5_mainboard/fpga_pwr.sch
+++ b/hardware/ecp5_mainboard/fpga_pwr.sch
@@ -4,7 +4,7 @@ EELAYER 26 0
 EELAYER END
 $Descr A1 33110 23386
 encoding utf-8
-Sheet 3 3
+Sheet 3 4
 Title ""
 Date ""
 Rev ""
diff --git a/hardware/ecp5_mainboard/power.sch b/hardware/ecp5_mainboard/power.sch
index 61d7e1e..281f5fb 100644
--- a/hardware/ecp5_mainboard/power.sch
+++ b/hardware/ecp5_mainboard/power.sch
@@ -4,7 +4,7 @@ EELAYER 26 0
 EELAYER END
 $Descr A3 16535 11693
 encoding utf-8
-Sheet 2 3
+Sheet 2 4
 Title ""
 Date ""
 Rev ""
diff --git a/hardware/ecp5_mainboard/sym-lib-table b/hardware/ecp5_mainboard/sym-lib-table
index 89d20dc..542dde8 100644
--- a/hardware/ecp5_mainboard/sym-lib-table
+++ b/hardware/ecp5_mainboard/sym-lib-table
@@ -3,4 +3,5 @@
   (lib (name eco_connectors)(type Legacy)(uri ${KIPRJMOD}/../lib/eco_connectors.lib)(options "")(descr ""))
   (lib (name eco_power)(type Legacy)(uri ${KIPRJMOD}/../lib/eco_power.lib)(options "")(descr ""))
   (lib (name eco_virtual)(type Legacy)(uri ${KIPRJMOD}/../lib/eco_virtual.lib)(options "")(descr ""))
+  (lib (name eco_memory)(type Legacy)(uri ${KIPRJMOD}/../lib/eco_memory.lib)(options "")(descr ""))
 )
diff --git a/hardware/lib/eco_memory.dcm b/hardware/lib/eco_memory.dcm
new file mode 100644
index 0000000..e9ce13d
--- /dev/null
+++ b/hardware/lib/eco_memory.dcm
@@ -0,0 +1,9 @@
+EESchema-DOCLIB  Version 2.0
+#
+$CMP 93AA46B_OT
+D 1K Microwire Compatible Serial EEPROM
+K eeprom serial spi 1k
+F http://ww1.microchip.com/downloads/en/DeviceDoc/20001749K.pdf
+$ENDCMP
+#
+#End Doc Library
diff --git a/hardware/lib/eco_memory.lib b/hardware/lib/eco_memory.lib
new file mode 100644
index 0000000..b857596
--- /dev/null
+++ b/hardware/lib/eco_memory.lib
@@ -0,0 +1,25 @@
+EESchema-LIBRARY Version 2.4
+#encoding utf-8
+#
+# 93AA46B_OT
+#
+DEF 93AA46B_OT U 0 40 Y Y 1 F N
+F0 "U" 0 50 50 H V C CNN
+F1 "93AA46B_OT" 0 -50 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ SOT-23-6
+$ENDFPLIST
+DRAW
+S 500 250 -500 -250 0 1 0 f
+X DO 1 -700 -150 200 R 50 50 1 1 O
+X GND 2 700 -150 200 L 50 50 1 1 W
+X DI 3 -700 -50 200 R 50 50 1 1 I
+X CLK 4 -700 50 200 R 50 50 1 1 I
+X CS 5 -700 150 200 R 50 50 1 1 I
+X Vcc 6 700 150 200 L 50 50 1 1 W
+ENDDRAW
+ENDDEF
+#
+#End Library