Tx buffer filled by MAC Commands, send data again

[Sebastian.barillaro@gmail.com]

Hello,

I am working with a python software in my machine that sends AT COMMANDS to mDot (through serial USB)

After a couple of executions of this code, I started to receive an error: Tx buffer filled by MAC Commands, send data again.

I couldn’t find anything on documentation about it.

Does anybody know what is happening here?

With best regards

Sebastian

mDot_serial = "/dev/tty.usbmodem142103"

import serial
import time

def sendCommand(command):
    print("\nSending: " + command)
    message = command + "\n"
    ser.write(message.encode())
    response = ser.readline()
    print(response.decode('utf-8'))
    response = ser.readline()
    print(response.decode('utf-8'))
    response = ser.readline()
    print(response.decode('utf-8'))
    response = ser.readline()
    print(response.decode('utf-8'))
    response = ser.readline()
    print(response.decode('utf-8'))
    time.sleep(3)

ser = serial.Serial('/dev/tty.usbmodem142201', 115200, timeout=1)

sendCommand("AT+FSB=2")
sendCommand("AT+NJM=0")
sendCommand("AT+NA=18446103")
sendCommand("AT+DSK=77deeb59dfsfsdfdfdsfsdfae9e911e3")
sendCommand("AT+NSK=77deeb59dfsfsdfdfdsfsdfae9e911e3")

sendCommand("AT+SEND=lalalala")

ser.close()

[Jason Reiss]

US915 using DR0 can send a maximum of 11 bytes payload.
Occasionally MAC commands responses need to be sent to the network. This will reduce the number of payload bytes available to send.

In Dot v3.2.1 AT+TXS will return the number of bytes available for the next uplink.

[Sebastian.barillaro@gmail.com]

Thank you very much for your answer!

[Author]

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