ubb-jtag/ubb-jtag-m1.sch: connect VREF to 2.5 V; explain that R3 is untested

ubb-jtag/ubb-jtag-m1.sch

@@ -1,8 +1,9 @@
-EESchema Schematic File Version 2  date Fri Jan  4 15:09:41 2013
+EESchema Schematic File Version 2  date Fri Jan  4 15:57:06 2013
 LIBS:pwr
 LIBS:r
 LIBS:8_10-card
 LIBS:conn
+LIBS:ubb-jtag-m1-cache
 EELAYER 25  0
 EELAYER END
 $Descr A4 11693 8268
@@ -124,7 +125,6 @@ F 1 "680" V 6000 4250 50  0000 C CNN
 	1    6000 4250
 	-1   0    0    1   
 $EndComp
-NoConn ~ 4300 3100
 Text Label 7400 3000 0    60   ~ 0
 DAT2
 Text Label 7400 3300 0    60   ~ 0
@@ -141,6 +141,21 @@ Text Notes 7050 5300 0    60   ~ 0
 680
 Text Notes 6950 5400 0    60   ~ 0
 220+680
+Text Notes 7400 5350 0    60   ~ 0
+= 2.49 V
+Text Notes 5900 5200 0    60   ~ 0
+Voltage dividers:
+Text Notes 3050 4050 0    60   ~ 0
+Milkymist One
+$Comp
+L 2V5 #PWR02
+U 1 1 50E725D8
+P 4300 2600
+F 0 "#PWR02" H 4300 2560 30  0001 C CNN
+F 1 "2V5" H 4300 2750 60  0000 C CNN
+	1    4300 2600
+	1    0    0    -1  
+$EndComp
 Wire Wire Line
 	8200 3100 7800 3100
 Wire Wire Line
@@ -234,10 +249,8 @@ Wire Wire Line
 Connection ~ 6300 4700
 Wire Notes Line
 	6950 5300 7350 5300
-Text Notes 7400 5350 0    60   ~ 0
+Wire Wire Line
-= 2.49 V
+	4300 2600 4300 3100
-Text Notes 5900 5200 0    60   ~ 0
+Text Notes 5700 5700 0    60   ~ 0
-Voltage dividers:
+R3 is absent in the proof of concept implementation and thus untested.
-Text Notes 3050 4050 0    60   ~ 0
-Milkymist One
 $EndSCHEMATC