Got the V1 version of the INM board working

README.md

@@ -14,7 +14,11 @@ estimation of bits added to an entropy pool.
 
 ### An Eagle open-source board is under way
 
-Here's the schematic so far...
+Here's the V1 version, which works as predicted:
+
+![Picture of Infinite Noise Multiplier circuit board](images/INM_V1.gpg?raw=true "Infinite Noise Multiplier")
+
+Here's the latest schematic...
 
 ![Schematic of Infinite Noise Multiplier](images/infnoise.png?raw=true "Infinite
 Noise Multiplier")

software/Makefile

@@ -1,8 +1,11 @@
-all: infnoise healthcheck findlongest
+all: infnoise infnoise-v1 healthcheck findlongest
 
 infnoise: infnoise.c infnoise.h healthcheck.c writeentropy.c Keccak/KeccakF-1600-reference.c Keccak/brg_endian.h
 	gcc -Wall -std=c11 -O3 -m64 -march=native -I Keccak -o infnoise infnoise.c healthcheck.c writeentropy.c Keccak/KeccakF-1600-reference.c -lftdi -lm
 
+infnoise-v1: infnoise.c infnoise.h healthcheck.c writeentropy.c Keccak/KeccakF-1600-reference.c Keccak/brg_endian.h
+	gcc -Wall -std=c11 -O3 -m64 -march=native -DVERSION1 -I Keccak -o infnoise-v1 infnoise.c healthcheck.c writeentropy.c Keccak/KeccakF-1600-reference.c -lftdi -lm
+
 healthcheck: healthcheck.c
 	gcc -Wall -std=c11 -O3 -m64 -march=native -D TEST_HEALTHCHECK -o healthcheck healthcheck.c -lm
 
@@ -10,4 +13,4 @@ findlongest: findlongest.c
 	gcc -Wall -std=c11 -O3 -m64 -march=native -o findlongest findlongest.c
 
 clean:
-	rm -f healthcheck infnoise findlongest
+	rm -f healthcheck infnoise infnoise-v1 findlongest

software/infnoise.c

@@ -15,10 +15,18 @@
 #define PREDICTION_BITS 14
 #define LINUX_POOL_SIZE (4096/8)
 
+#ifdef VERSION1
+#define COMP1 2
+#define COMP2 0
+#define SWEN1 4
+#define SWEN2 1
+#else
 #define COMP1 1
 #define COMP2 4
 #define SWEN1 2
 #define SWEN2 0
+#endif
+
 // Add bits are outputs, except COMP1 and COMP2
 #define MASK (0xff & ~(1 << COMP1) & ~(1 << COMP2))