Table of Contents
About Printer Ports
Windows
- Download inpout32.dll and place in the c:\windows\system32 directory. You will need to be an administrator.
- Reading from and writing to data, control and status ports can be accomplished in Python using the ctypes module.
A function invocation such as ctypes.windll.inpout32.Out32(0x37c, byte) uses the ctypes windll method to access the
Out32 function of inpout32.dll. The byte is written to the IO address 37c in hex.
- This module has a parallel port class with read, write and convert/eoc handshaking functions for an ADC as well as
test routines for these functions: printer_port_io.py
(updated 7 May at 15:06). Data taken with the fast block read routine and the Max 153 ADC:
50 Hz 3 Volt signal data and
plot as pdf; 100 Hz 3 Volt signal
data and
plot as pdf. Plot them with
plot_data_file.py. Notice the non-random noise.
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