TI TM4C129 Launchpad and XBee

XBee & XBee Gateway
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1

I am using TM4C129 Launchpad launchpad and trying to connect XBee Series 2 (S2C) through UART.

Looking into the pinout of TM4C129 (http://energia.nu/wordpress/wp-content/uploads/2014/06/LaunchPads-LM4F-TM4C-—-Pins-Maps-13-34.jpeg), I am connecting like below

XBee TX <—> RX

XBee RX <—> TX

XBee 3.3V <—> pin#41

XBee GND <—> pin#62

use below code on the LaunchPad at Energia

void setup()
{
Serial.begin(9600);
//pinMode(13, OUTPUT);
}

void loop()
{
Serial.println(‘H’);
delay(1000);
Serial.println(‘L’);
delay(1000);

}

And the below python code runs on my Mac as a coordinator

#!/usr/bin/python

import serial

ser = serial.Serial(‘/dev/tty.usbserial-A104IC2U’, 9600)

while True:
incoming = ser.readline().strip()
print ‘%s’ % incoming

But it doesn’t work. FYI, this code worked on Arduino.

Has anyone tried this before? Any suggestion?

2

I think UART0 is software serial so instead I used UART3 for connecting the XBee and in the code used Serial3.

That resolved it.