Start implementing ack

app/fskmodem.h

@@ -111,10 +111,22 @@ typedef enum {
     SMS_ENTERING_MESSAGE
 } SMSEnteringState;
 
+typedef enum {
+    SMS_RESPONSE_IDLE,
+    SMS_RESPONSE_ACK,
+    SMS_RESPONSE_RETRANSMIT
+} SMSResponseState;
+
 extern SMSEnteringState gEnteringSMS;
+extern SMSResponseState gSMSResponseState;
 
 extern uint8_t *dataPTR;
 
+extern bool gGotACK;
+
+extern uint8_t SMSResponseCounter;
+
 void FSK_HANDLE_IRQ(unsigned short irq);
+void FSKModem_TimeSlice500ms(void);
 
 #endif //UV_K5_FIRMWARE_CUSTOM_FSKMODEM_H