Merge pull request #13 from projectgus/master

Fix fel-gpio & pio tools

fel-gpio

@@ -3,6 +3,7 @@
 pio_to_sram=0x2000
 sram_to_pio=0x2004
 
+set -e
 if [ -f fel-pio.bin ]; then
 	./fel write 0x2000 fel-pio.bin
 else
@@ -13,6 +14,8 @@ fi
 ./fel read 0x3000 0x228 pio.reg
 ./pio -i pio.reg print > pio.old
 cat pio.old | fgrep -v '<0><0><0><0>'
+
+set +e
 while read cmd; do
 	./pio -i pio.reg -o pio.reg $cmd
 	./fel write 0x3000 pio.reg

pio.c

@@ -392,7 +392,7 @@ int main(int argc, char **argv)
 		}
 	}
 	if (in) {
-		if (fread(buf, sizeof(buf), 1, in) != 1) {
+		if (fread(buf, PIO_REG_SIZE, 1, in) != 1) {
 			perror("read input");
 			exit(1);
 		}
@@ -414,7 +414,7 @@ int main(int argc, char **argv)
 				exit(1);
 			}
 		}
-		if (fwrite(buf, sizeof(buf), 1, out) != 1) {
+		if (fwrite(buf, PIO_REG_SIZE, 1, out) != 1) {
 			perror("write output");
 			exit(1);
 		}