LoRaWAN on Zephyr SX1276 & SX1262

[Induthings]

Dear All.

I tried to test and evaluate LoRaWAN stack on Zephyr, without success. I will need more time to debug what is happening by the logic analyzer. Meantime I attached the configurations to confirm, if anybody tried the same.

SX1276MB1LAS  + nrf52832-DK:

&spi0 {
          compatible = "nordic,nrf-spi";
          status = "okay";
          mosi-pin = <23>;
          miso-pin = <24>;
          sck-pin = <25>;
          cs-gpios = <&gpio0 22 GPIO_ACTIVE_LOW>;
          miso-pull-up;

          lora0: sx1276@0 {
                    compatible = "semtech,sx1276";
                    reset-gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
                    dio-gpios = <&gpio0 13 GPIO_ACTIVE_HIGH>,
                                <&gpio0 14 GPIO_ACTIVE_HIGH>,
                                <&gpio0 15 GPIO_ACTIVE_HIGH>,
                                <&gpio0 16 GPIO_ACTIVE_HIGH>,
                                <&gpio0 19 GPIO_ACTIVE_HIGH>,
                                <&gpio0 20 GPIO_ACTIVE_HIGH>;
                     //antenna-enable-gpios = <&gpio0 30 GPIO_ACTIVE_HIGH>;
                    power-amplifier-output = "pa-boost";
                    reg = <0>;
                    spi-max-frequency = <1000000>;
                    label = "SX1276";
           };
};

SX1262MB2CAS + nrf52832-DK:

&spi0 {
       compatible = "nordic,nrf-spi";
       status = "okay";
       miso-pin = <24>;
       mosi-pin = <23>;
       sck-pin = <25>;
       cs-gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
       miso-pull-up;

       lora0: sx1262@0 {
          compatible = "semtech,sx1262";
          reg = <0>;
          label = "sx1262";
          reset-gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
          antenna-enable-gpios = <&gpio0 19 GPIO_ACTIVE_LOW>;
          busy-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
          dio1-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>;
          spi-max-frequency = <1000000>;
      };
};

# enable SPI
CONFIG_SPI=y
CONFIG_SPI_NRFX=y

# Enable the SX12XX radio driver for Lora
CONFIG_LORA=y
CONFIG_LORA_LOG_LEVEL_DBG=y
CONFIG_LORA_SX12XX=y
CONFIG_LORA_SX127X=y

# Enable the Lorawan stack
CONFIG_LORAWAN=y
CONFIG_LORAWAN_LOG_LEVEL_DBG=y
CONFIG_HAS_SEMTECH_LORAMAC=y
CONFIG_HAS_SEMTECH_SOFT_SE=y
CONFIG_HAS_SEMTECH_RADIO_DRIVERS=y
# Define the Lorawan region to be used
CONFIG_LORAMAC_REGION_AU915=y
#CONFIG_LORAMAC_REGION_US915=y
#CONFIG_LORAWAN_SYSTEM_MAX_RX_ERROR=90

seems that it is not transmitting anything...

00> [00:00:00.271,942] <dbg> sx126x.sx126x_lora_init: Initializing sx1262
00> [00:00:00.272,033] <dbg> sx126x.SX126xReset: Resetting radio
00> [00:00:00.302,398] <dbg> sx126x.SX126xIoIrqInit: Configuring DIO IRQ callback
00> [00:00:00.302,520] <dbg> sx126x.SX126xWakeup: Sending GET_STATUS
00> [00:00:00.302,703] <dbg> sx126x.SX126xWakeup: Waiting for device...
00> [00:00:00.302,703] <dbg> sx126x.SX126xWakeup: Device ready
00> [00:00:00.302,734] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x80 w. 1 bytes of data
00> [00:00:00.302,947] <dbg> sx126x.SX126xSetOperatingMode: SetOperatingMode: STDBY_RC (1)
00> [00:00:00.302,947] <dbg> sx126x.SX126xIoTcxoInit: No TCXO configured
00> [00:00:00.302,978] <dbg> sx126x.SX126xIoRfSwitchInit: Configuring DIO2
00> [00:00:00.302,978] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x9d w. 1 bytes of data
00> [00:00:00.303,192] <dbg> sx126x.SX126xSetOperatingMode: SetOperatingMode: STDBY_RC (1)
00> [00:00:00.303,19
00> [00:00:05.719,268] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x80 w. 1 bytes of data
00> [00:00:05.719,390] <dbg> sx126x.SX126xWakeup: Sending GET_STATUS
00> [00:00:05.719,543] <dbg> sx126x.SX126xWakeup: Waiting for device...
00> [00:00:05.720,703] <dbg> sx126x.SX126xWakeup: Device ready
00> [00:00:05.720,703] <dbg> sx126x.SX126xAntSwOn: Enabling antenna switch
00> [00:00:05.720,916] <dbg> sx126x.SX126xSetOperatingMode: SetOperatingMode: STDBY_RC (1)
00> [00:00:05.720,947] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x86 w. 4 bytes of data
00> [00:00:05.722,351] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x9f w. 1 bytes of data
00> [00:00:05.722,564] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x80 w. 1 bytes of data
00> [00:00:05.722,778] <dbg> sx126x.SX126xSetOperatingMode: SetOperatingMode: STDBY_RC (1)
00> [00:00:05.722,808] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x8a w. 1 bytes of data
00> [00:00:05.723,052] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x8b w. 4 bytes of data
00> [00:00:05.724,426] <dbg> sx1[00:00:05.725,402] <dbg> sx126x.SX126xWriteRegisters: Writing 1 registers @ 0x736: 0x9 , ...
00> [00:00:05.725,646] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x8c w. 6 bytes of data
00> [00:00:05.725,891] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x8 w. 8 bytes of data
00> [00:00:05.726,165] <dbg> sx126x.SX126xSetOperatingMode: SetOperatingMode: RX (5)
00> [00:00:05.726,196] <dbg> sx126x.SX126xWriteRegisters: Writing 1 registers @ 0x8ac: 0x94 , ...
00> [00:00:05.726,440] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x82 w. 3 bytes of data
00> [00:00:05.775,939] <dbg> sx126x.sx126x_dio1_irq_work_handler: Processing DIO1 interrupt
00> [00:00:05.776,000] <dbg> sx126x.SX126xReadCommand: Issuing opcode 0x12 (data size: 2)
00> [00:00:05.776,214] <dbg> sx126x.SX126xReadCommand: -> status: 0xa6
00> [00:00:05.776,245] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x2 w. 2 bytes of data
00> [00:00:05.776,458] <dbg> sx126x.SX126xSetOperatingMode: SetOperatingMode: STDBY_RC (1)
00> [00:00:05.776,489] <dbg> sx126x.SX126xAntSwOff: Disabling antenna switch
00> [00:00:05.776,489] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x84 w. 1 bytes of data
00> [00:00:05.776,702] <dbg> sx126x.SX126xSetOperatingMode: SetOperatingMode: SLEEP (0)
00> [00:00:06.739,990] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x80 w. 1 bytes of data
00> [00:00:06.740,051] <dbg> sx126x.SX126xWakeup: Sending GET_STATUS
00> [00:00:06.740,173] <dbg> sx126x.SX126xWakeup: Waiting for device...
00> [00:00:06.741,363] <dbg> sx126x.SX126xWakeup: Device ready
00> [00:00:06.741,394] <dbg> sx126x.SX126xAntSwOn: Enabling antenna switch
00> [00:00:06.741,607] <dbg> sx126x.SX126xSetOperatingMode: SetO0m
00> [00:00:06.743,011] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x9f w. 1 bytes of data
00> [00:00:06.743,255] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x80 w. 1 bytes of data
00> [00:00:06.743,469] <dbg> sx126x.SX126xSetOperatingMode: SetOperatingMode: STDBY_RC (1)
00> [00:00:06.743,469] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x8a w. 1 bytes of data
00> [00:00:06.743,682] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x8b w. 4 bytes of data
00> [00:00:06.745,086] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x8c w. 6 bytes of data
00> [00:00:06.745,360m
00> [00:00:06.745,574] <dbg> sx126x.SX126xWriteRegisters: Writing 1 registers @ 0x706: 0x28 , ...
00> [00:00:06.745,819] <dbg> sx126x.SX126xReadRegisters: Reading 1 registers @ 0x736
00> [00:00:06.746,032] <dbg> sx126x: register_value
00> 0d |.
00> [00:00:06.746,063] <dbg> sx126x.SX126xWriteRegisters: Writing 1 registers @ 0x736: 0x9 , ...
00> [00:00:06.746,307] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x8c w. 6 bytes of data
00> [00:00:06.746,551] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x8 w. 8 bytes of data
00> [00:00:06.746,917] <dbg> sx126x.SX126xSetOperatingMode: SetOperatingMode: RX (5)
00> [00:00:06.746,948] <dbg> sx126x.SX126xWriteRegisters: Writing 1 registers @ 0x8ac: 0x94 , ...
00> [00:00:06.747,161] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x82 w. 3 bytes of data
00> [00:00:06.829,437] <dbg> sx126x.sx126x_dio1_irq_work_handler: Processing DIO1 interrupt
00> [00:00:06.829,528] <dbg> sx126x.SX126xReadCommand: Issuing opcode 0x12 (data size: 2)
00> [00:00:06.829,742] <dbg> sx126x.SX126xReadCommand: -> status: 0xa6
00> [00:00:06.829,772] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x2 w. 2 bytes of data
00> [00:00:06.830,017] <dbg> sx126x.SX126xSetOperatingMode: SetOperatingMode: STDBY_RC (1)
00> [00:00:06.830,017] <dbg> sx126x.SX126xAntSwOff: Disabling antenna switch
00> [00:00:06.830,047] <dbg> sx126x.SX126xWriteCommand: Issuing opcode 0x84 w. 1 bytes of data
00> [00:00:06.830,261] <dbg> sx126x.SX126xSetOperatingMode: SetOperatingMode: SLEEP (0)
00> [00:00:06.832,458] <dbg> lorawan.MlmeConfirm: Received MlmeConfirm (for MlmeRequest 1)
00> [00:00:06.832,489] <err> lorawan: MlmeConfirm failed : Rx 2 timeout
00> [00:00:06.835,357] <err> lorawan_class_a: lorawan_join_network failed: -116

Thanks in advance...

[Øyvind]

Hello,

I'm afraid we do not have any knowledge of the LoraWan stack on Zephyr. I suggest contacting the Zephyr community through Discord. 

Kind regards,

Øyvind

[rdauben]

Were you able to get your LoRaWAN app to work?

I am trying the get the lorawan sample to work on the nRF52840DK with an SX1262 shield attached.  I've confirmed the hardware with the simple Tx and Rx point-to-point demos.  But I've not had much success with the lorawan sample.  I see my Join Request at the gateway and the gateway sends back a successful Join Accept.  But the the lorawan app never receives any packet and then times out.

[Induthings]

yes, I tested the latest release 2.1.0 and it is working

[rdauben]

Good to know.  I am still fighting to get it working.  My end device is not seeing the Accept response that is being sent by the gateway.  Would you be willing to elaborate on what you did to get yours working?  If you prefer to respond privately, please feel free.

Thanks.

Ron

[zazas321]

Hello. I know its been a while but I am to get the SX1276MB1LAS to experiment with LoRa. Do you have a sample project that you use for basic transmit/receive?