LoRa Problem with 1.10.2.b1 FW

Reply to LoRa Problem with 1.10.2.b1 FW on Mon, 11 Dec 2017 15:23:06 GMT

ssmith — Mon, 11 Dec 2017 15:23:06 GMT

When I upgrade my FW from 1.9.2 to 1.10.2.b1 LoRa Raw communication fails. My LoRa setup is:

  "lora": {
    "mode": "LORA",
    "frequency": 918000000,
    "power_mode": "ALWAYS_ON",
    "tx_power": 20,
    "bandwidth": 125,
    "sf": 9,
    "preamble": 8,
    "coding_rate": "4_8",
    "tx_iq": false,
    "rx_iq": false
  }
}

s = socket.socket(socket.AF_LORA, socket.SOCK_RAW)
s.setblocking(False)

The only change is the FW. I can downgrade it to 1.9.2 and all starts working again. I tried both LoPys at 1.10.2 and still nothing. Has anything changed in 10.2 that would affect this?

Steve

Reply to LoRa Problem with 1.10.2.b1 FW on Mon, 11 Dec 2017 20:02:03 GMT

jmarcelino — Mon, 11 Dec 2017 20:02:03 GMT

Hi @ssmith
Can you explain in more detail what exactly is failing?

Thanks.

Reply to LoRa Problem with 1.10.2.b1 FW on Mon, 11 Dec 2017 21:26:20 GMT

ssmith — Mon, 11 Dec 2017 21:26:20 GMT

Just no LoRa ints getting through. Found a discussion on github about adding a 50mS delay in the while loop of the main program and now I am getting packets through. I need to understand the interrupt processing better. It should break out of a tight while loop with an interrupt but seems like it doesn't. I also had to add a sleep delay after boot before loading our BT code or the device would core dump with this version of code.

Here's the link: https://github.com/pycom/pycom-micropython-sigfox/issues/102