fix interfaccia

codice/Core/Inc/si5351.h

@@ -5,6 +5,8 @@
 #define SI5351_MIN_FREQ		3000
 #define SI5351_MAX_FREQ		200000000
 
+// #### registri ####
+
 #define SI5351_OUT_ENABLE	3
 #define SI5351_OUT_DIS_STATE	24
 
@@ -25,3 +27,8 @@
 #define SI5351_CRYSTAL_LOAD	183
 
 extern I2C_HandleTypeDef hi2c1;
+
+void si53531_initialize(void);
+void si53531_set_frequency(uint32_t freq, uint8_t synth);
+void si5351_off(void);
+void si5351_on(void);