Serial Communication

[nagarj...@gmail.com]

Good afternoon!!!!

Hi currently iam working on beagleboneblack. Our problem is not communication happen using serial port.  That one is a RS232 that one is connected to our system.

here whatever message sending from beaglebone that will be received on my system here iam using (Docklight or Hercules). But i did not get any results.

Program :// on beaglebone side

import time

import Adafruit_BBIO.UART as UART

import serial

UART.setup("UART2")

print "Starting program"

ser = serial.Serial('/dev/ttyO2', baudrate=9600,

                    parity=serial.PARITY_NONE,

                    stopbits=serial.STOPBITS_ONE,

                    bytesize=serial.EIGHTBITS

                    )

time.sleep(1)

try:

        ser.write('Hello World')

        ser.write('Serial Communication')

        ser.write('By: Embedded Laboratoryn')

        print 'Data Echo Mode Enabled'

        while True:

                if ser.inWaiting() > 0.50:

                        data = ser.read()

                        print data

                        print('hello')

                        print('good morning')

except KeyboardInterrupt:

        print "Exiting Program"

except:

        print "Error Occurs, Exiting Program"

finally:

        ser.close()

        pass

Here iam not getting any results can you please solve my problem.

[Dennis Lee Bieber]

On Mon, 18 Dec 2017 23:48:27 -0800 (PST),
nagarj...@gmail.com declaimed the
following:


>
>*except:*
>* print "Error Occurs, Exiting Program"*
>

The first suggestion is: DON'T DO THAT!

You have masked any informative error message -- take out that entire
except block and let the run-time dump the real error message if there is
one.

>*finally:*
>* ser.close()*
>* pass*
>

"pass" is meaningless here

--
Wulfraed Dennis Lee Bieber AF6VN
wlf...@ix.netcom.com HTTP://wlfraed.home.netcom.com/