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Unable to read/do not receive any data from com port using pyserial

P: 1
Hi,

I am using the pyserial module and am trying to read the serial port from an accelerometer (LIS302DL).

It has an option in which you write "*debug\r\n" and then you read the data (three axes output) from the output.

I use hyperterminal with the below settings and it works fine:

baudrate=115200
databits=8
parity=none
stop bit=1
flow control=none

ASCII Setup: "Send line ends with line feeds" and "Echo typed characters locally"

However when I try using the below python code, nothing is read (using win xp).
It may be a case of the "*debug\n" not actually being written (?) - I've tried a multitude of combinations of single quotes versus double quotes etc.

Does anybody have any ideas or what my issue is ?
======================
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  1. import serial
  2.  
  3. ser = serial.Serial()
  4. ser.baudrate = 115200
  5. ser.port = 4
  6. ser.timeout=3
  7. ser.isOpen()
  8. settings=ser
  9. print "Serial port settings: ", settings
  10. print ser.portstr
  11. ser.open()
  12. ser.flushInput()
  13. ser.write("*debug\r\n")
  14. x=ser.readline()
  15.  
  16. print "Read: ", x
  17. ser.write("*stop\r\n")
  18. ser.close()
  19. ser.isOpen()
Nov 13 '08 #1
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Curtis Rutland
Expert 2.5K+
P: 3,256
Please enclose your posted code in [CODE] [/CODE] tags (See How to Ask a Question).

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Nov 13 '08 #2

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