EEPROM config and TNC mode

Config.h

@@ -62,9 +62,9 @@
 	const int lora_rx_turnaround_ms = 50;
 
 	// Default LoRa settings
-	int  lora_sf   = 0;
+	int  lora_sf   	   = 0;
-	int  lora_cr   = 5;
+	int  lora_cr       = 5;
-	int  lora_txp  = 0xFF;
+	int  lora_txp      = 0xFF;
 	uint32_t lora_bw   = 0;
 	uint32_t lora_freq = 0;
 

Framing.h

@@ -28,6 +28,7 @@
 	#define CMD_ROM_READ	0x51
 	#define CMD_ROM_WRITE	0x52
 	#define CMD_CONF_SAVE   0x53
+	#define CMD_CONF_DELETE 0x54
 	#define CMD_UNLOCK_ROM	0x59
 	#define ROM_UNLOCK_BYTE 0xF8
 
@@ -53,26 +54,4 @@
 	bool ESCAPE = false;
 	uint8_t command = CMD_UNKNOWN;
 
-#endif
+#endif
-
-/*
-Frequency 433.200		0xc00119d21b80c0
-Bandwidth 20.800		0xc00200005140c0
-TX Power 8dbm			0xc00308c0
-SF 7					0xc00407c0
-
-All:					0xc00119d21b80c00200005140c00308c00407c0
-
-Radio on 				0xc00501c0
-
-Config+on 				0xc00119d21b80c00200005140c00301c00407c00601c0
-
-
-		c1 = self.bandwidth >> 24
-		c2 = self.bandwidth >> 16 & 0xFF
-		c3 = self.bandwidth >> 8 & 0xFF
-		c4 = self.bandwidth & 0xFF
-		data = KISS.escape(chr(c1)+chr(c2)+chr(c3)+chr(c4))
-
-
-*/

LoRa.cpp

@@ -370,24 +370,24 @@ void LoRaClass::setTxPower(int level, int outputPin)
   }
 }
 
-void LoRaClass::setFrequency(long frequency)
+void LoRaClass::setFrequency(long frequency) {
-{
   _frequency = frequency;
 
-  uint64_t frf = ((uint64_t)frequency << 19) / 32000000;
+  uint32_t frf = ((uint64_t)frequency << 19) / 32000000;
 
   writeRegister(REG_FRF_MSB, (uint8_t)(frf >> 16));
   writeRegister(REG_FRF_MID, (uint8_t)(frf >> 8));
   writeRegister(REG_FRF_LSB, (uint8_t)(frf >> 0));
 }
 
-long LoRaClass::getFrequency() {
+uint32_t LoRaClass::getFrequency() {
   uint8_t msb = readRegister(REG_FRF_MSB);
   uint8_t mid = readRegister(REG_FRF_MID);
   uint8_t lsb = readRegister(REG_FRF_LSB);
 
-  uint64_t frf = msb << 16 | mid << 8 | lsb;
+  uint32_t frf = ((uint32_t)msb << 16) | ((uint32_t)mid << 8) | (uint32_t)lsb;
-  long frequency = (uint64_t)(frf*32000000) >> 19;
+  uint64_t frm = (uint64_t)frf*32000000;
+  uint32_t frequency = (frm >> 19);
 
   return frequency;
 }

LoRa.h

@@ -46,7 +46,7 @@ public:
   void sleep();
 
   void setTxPower(int level, int outputPin = PA_OUTPUT_PA_BOOST_PIN);
-  long getFrequency();
+  uint32_t getFrequency();
   void setFrequency(long frequency);
   void setSpreadingFactor(int sf);
   long getSignalBandwidth();

RNode_Firmware.ino

@@ -344,6 +344,10 @@ void serialCallback(uint8_t sbyte) {
         }
     } else if (command == CMD_FW_VERSION) {
       kiss_indicate_version();
+    } else if (command == CMD_CONF_SAVE) {
+      eeprom_conf_save();
+    } else if (command == CMD_CONF_DELETE) {
+      eeprom_conf_delete();
     }
   }
 }
@@ -390,6 +394,11 @@ void validateStatus() {
     if (eeprom_product_valid() && eeprom_model_valid() && eeprom_hwrev_valid()) {
       if (eeprom_checksum_valid()) {
         hw_ready = true;
+
+        if (eeprom_have_conf()) {
+          eeprom_conf_load();
+          startRadio();
+        }
       }
     } else {
       hw_ready = false;

Utilities.cpp

@@ -228,7 +228,6 @@ void getPacketData(int len) {
 	}
 }
 
-
 void setSpreadingFactor() {
 	if (radio_online) LoRa.setSpreadingFactor(lora_sf);
 }
@@ -387,6 +386,51 @@ bool eeprom_checksum_valid() {
 	return checksum_valid;
 }
 
+bool eeprom_have_conf() {
+	if (EEPROM.read(eeprom_addr(ADDR_CONF_OK)) == CONF_OK_BYTE) {
+		return true;
+	} else {
+		return false;
+	}
+}
+
+void eeprom_conf_load() {
+	if (eeprom_have_conf()) {
+		lora_sf = EEPROM.read(eeprom_addr(ADDR_CONF_SF));
+		lora_cr = EEPROM.read(eeprom_addr(ADDR_CONF_CR));
+		lora_txp = EEPROM.read(eeprom_addr(ADDR_CONF_TXP));
+		lora_freq = (uint32_t)EEPROM.read(eeprom_addr(ADDR_CONF_FREQ)+0x00) << 24 | (uint32_t)EEPROM.read(eeprom_addr(ADDR_CONF_FREQ)+0x01) << 16 | (uint32_t)EEPROM.read(eeprom_addr(ADDR_CONF_FREQ)+0x02) << 8 | (uint32_t)EEPROM.read(eeprom_addr(ADDR_CONF_FREQ)+0x03);
+		lora_bw = (uint32_t)EEPROM.read(eeprom_addr(ADDR_CONF_BW)+0x00) << 24 | (uint32_t)EEPROM.read(eeprom_addr(ADDR_CONF_BW)+0x01) << 16 | (uint32_t)EEPROM.read(eeprom_addr(ADDR_CONF_BW)+0x02) << 8 | (uint32_t)EEPROM.read(eeprom_addr(ADDR_CONF_BW)+0x03);
+	}
+}
+
+void eeprom_conf_save() {
+	if (hw_ready && radio_online) {
+		EEPROM.update(eeprom_addr(ADDR_CONF_SF), lora_sf);
+		EEPROM.update(eeprom_addr(ADDR_CONF_CR), lora_cr);
+		EEPROM.update(eeprom_addr(ADDR_CONF_TXP), lora_txp);
+
+		EEPROM.update(eeprom_addr(ADDR_CONF_BW)+0x00, lora_bw>>24);
+		EEPROM.update(eeprom_addr(ADDR_CONF_BW)+0x01, lora_bw>>16);
+		EEPROM.update(eeprom_addr(ADDR_CONF_BW)+0x02, lora_bw>>8);
+		EEPROM.update(eeprom_addr(ADDR_CONF_BW)+0x03, lora_bw);
+
+		EEPROM.update(eeprom_addr(ADDR_CONF_FREQ)+0x00, lora_freq>>24);
+		EEPROM.update(eeprom_addr(ADDR_CONF_FREQ)+0x01, lora_freq>>16);
+		EEPROM.update(eeprom_addr(ADDR_CONF_FREQ)+0x02, lora_freq>>8);
+		EEPROM.update(eeprom_addr(ADDR_CONF_FREQ)+0x03, lora_freq);
+
+		EEPROM.update(eeprom_addr(ADDR_CONF_OK), CONF_OK_BYTE);
+		led_indicate_info(10);
+	} else {
+		led_indicate_warning(10);
+	}
+}
+
+void eeprom_conf_delete() {
+	EEPROM.update(eeprom_addr(ADDR_CONF_OK), 0x00);
+}
+
 void unlock_rom() {
 	led_indicate_error(50);
 	eeprom_erase();