Merge pull request #145 from beegee-tokyo/RAK3112

Fix RP2040 assert issue, Add RAK3112 support

Author: beegee-tokyo

CHANGELOG.md

@@ -6,6 +6,7 @@ Arduino library for LoRa communication with Semtech SX126x chips. It is based on
 
 # V2.0.30 Fix RP2040 assert issue
   - Set timer priority correct, thanks to _**@EdisonAgudelo**_
+  - Add RAK3112 support
 
 # V2.0.29 Add read the Syncword function
   - Add radio function to read the radio syncword uint16_t syncword = Radio.GetSyncWord(void);

README.md

@@ -90,6 +90,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 [Code releases](CHANGELOG.md)
 - 2025-01-16 Fix RP2040 assert issue
   - Set timer priority correct, thanks to _**@EdisonAgudelo**_
+  - Add RAK3112 support
 - 2025-01-05 Add function to read the Syncword
   - Add radio function to read the radio syncword uint16_t syncword = Radio.GetSyncWord(void);
 - 2025-01-01 Add custom Syncword and Low DataRate optimization

library.json

@@ -21,7 +21,6 @@
 		"espressif32",
 		"nordicnrf52",
 		"espressif8266",
-		"nordicnrf52",
 		"mbed_rp2040",
 		"rp2040"
 	],

src/boards/mcu/board.cpp

@@ -374,6 +374,54 @@ uint32_t lora_rak13300_init(void)
 	return 1;
 }
 
+uint32_t lora_rak3112_init(void)
+{
+	_hwConfig.CHIP_TYPE = SX1262;		   // Chip type, SX1261 or SX1262
+	_hwConfig.PIN_LORA_RESET = 8;		   // LORA RESET
+	_hwConfig.PIN_LORA_NSS = 7;			   // LORA SPI CS
+	_hwConfig.PIN_LORA_SCLK = 5;		   // LORA SPI CLK
+	_hwConfig.PIN_LORA_MISO = 3;		   // LORA SPI MISO
+	_hwConfig.PIN_LORA_DIO_1 = 33;		   // LORA DIO_1
+	_hwConfig.PIN_LORA_BUSY = 34;		   // LORA SPI BUSY
+	_hwConfig.PIN_LORA_MOSI = 6;		   // LORA SPI MOSI
+	_hwConfig.RADIO_TXEN = -1;			   // LORA ANTENNA TX ENABLE (e.g. eByte E22 module)
+	_hwConfig.RADIO_RXEN = 4;			   // LORA ANTENNA RX ENABLE (e.g. eByte E22 module)
+	_hwConfig.USE_DIO2_ANT_SWITCH = true;  // LORA DIO2 controls antenna
+	_hwConfig.USE_DIO3_TCXO = true;		   // LORA DIO3 controls oscillator voltage (e.g. eByte E22 module)
+	_hwConfig.USE_DIO3_ANT_SWITCH = false; // LORA DIO3 controls antenna (e.g. Insight SIP ISP4520 module)
+	_hwConfig.USE_RXEN_ANT_PWR = true;	   // RXEN is used as power for antenna switch
+
+	TimerConfig();
+
+	SX126xIoInit();
+
+	// After power on the sync word should be 2414. 4434 could be possible on a restart
+	// If we got something else, something is wrong.
+	uint16_t readSyncWord = 0;
+	SX126xReadRegisters(REG_LR_SYNCWORD, (uint8_t *)&readSyncWord, 2);
+
+	LOG_LIB("BRD", "SyncWord = %04X", readSyncWord);
+
+	// There could be a custom syncword, better test for 0xFFFF
+	// if ((readSyncWord == 0x2414) || (readSyncWord == 0x4434))
+	if (readSyncWord != 0xFFFF)
+	{
+#if defined NRF52_SERIES || defined ESP32 || defined ARDUINO_ARCH_RP2040 || defined ARDUINO_RAKWIRELESS_RAK11300
+		if (start_lora_task())
+		{
+			return 0;
+		}
+		else
+		{
+			return 1;
+		}
+#else
+		return 0;
+#endif
+	}
+	return 1;
+}
+
 #if defined NRF52_SERIES || defined ESP32 || defined ARDUINO_RAKWIRELESS_RAK11300
 void _lora_task(void *pvParameters)
 {

src/boards/mcu/board.h

@@ -112,6 +112,10 @@ uint32_t lora_rak4630_init(void);
  */
 uint32_t lora_rak11300_init(void);
 
+/**@brief Initializes the RAK3112 board peripherals.
+ */
+uint32_t lora_rak3112_init(void);
+
 /**@brief Initializes the RAK13300 board peripherals.
  */
 uint32_t lora_rak13300_init(void);