TinyAdder: remove unused pins from constraints, add Makefile.

fpga/tinyfpga/TinyAdder/Makefile

@@ -0,0 +1,12 @@
+MODULES :=	SegmentLCD.v TinyAdder.v
+TARGET :=	hardware.bin
+
+.PHONY: all
+all: $(TARGET)
+
+$(TARGET): $(MODULES)
+	apio build
+
+.PHONY: upload clean build
+build clean upload:
+	apio $@

fpga/tinyfpga/TinyAdder/pins.pcf

@@ -44,8 +44,6 @@ set_io --warn-no-port PIN_3 B1
 set_io --warn-no-port PIN_4 C2
 set_io --warn-no-port PIN_5 C1
 set_io --warn-no-port PIN_6 D2
-set_io --warn-no-port PIN_7 D1
-set_io --warn-no-port PIN_8 E2
 set_io --warn-no-port PIN_9 E1
 set_io --warn-no-port PIN_10 G2
 set_io --warn-no-port PIN_11 H1
@@ -62,33 +60,12 @@ set_io --warn-no-port PIN_19 B8
 set_io --warn-no-port PIN_20 A8
 set_io --warn-no-port PIN_21 B7
 set_io --warn-no-port PIN_22 A7
-set_io --warn-no-port PIN_23 B6
-set_io --warn-no-port PIN_24 A6
-
-# SPI flash interface on bottom of board
-set_io --warn-no-port SPI_SS F7
-set_io --warn-no-port SPI_SCK G7
-set_io --warn-no-port SPI_IO0 G6
-set_io --warn-no-port SPI_IO1 H7
-set_io --warn-no-port SPI_IO2 H4
-set_io --warn-no-port SPI_IO3 J8
-
-# General purpose pins on bottom of board
-set_io --warn-no-port PIN_25 G1
-set_io --warn-no-port PIN_26 J3
-set_io --warn-no-port PIN_27 J4
-set_io --warn-no-port PIN_28 G9
-set_io --warn-no-port PIN_29 J9
-set_io --warn-no-port PIN_30 E8
-set_io --warn-no-port PIN_31 J2
 
 # LED
 set_io --warn-no-port LED B3
 
 # USB
-set_io --warn-no-port USBP B4
-set_io --warn-no-port USBN A4
 set_io --warn-no-port USBPU A3
 
 # 16MHz clock
-set_io --warn-no-port CLK B2 # input
+# set_io --warn-no-port CLK B2 # input