re add attiny.c

stm32/src/attiny.c

+#include "attiny.h"
+#include <stdlib.h>
+
+
+attiny new_slave( void ){
+	attiny slave;
+
+	slave.stateled = 0;
+	slave.adresse = 0;
+
+	return slave;
+}
+
+attiny define_slave( char* buffer ){
+	attiny slave;
+
+	slave.stateled = buffer[0] - 48;
+
+    if (buffer[1] < 57 && buffer[2] < 57) {
+        slave.adresse = ((buffer[1] - 48)*16 + buffer[2] - 48)*2;
+    } else if ( buffer[1] > 64 && buffer[2] < 57) {
+        slave.adresse = ((buffer[1] - 55)*16 + buffer[2] - 48)*2;
+    } else if ( buffer[1] < 57 && buffer[2] > 64) {
+        slave.adresse = ((buffer[1] - 48)*16 + buffer[2] - 55)*2;
+    } else if ( buffer[1] > 64 && buffer[2] > 64) {
+        slave.adresse = ((buffer[1] - 55)*16 + buffer[2] - 55)*2;
+    }
+	return slave;
+}