I2C LPT Interface Test Utility
In October 2000 Elektor published a I2C interface, which usages directly
the parallel port lines to communicate with I2C devices. This interfaces
replaces the I2C ISA card and I2C Parallel port based interfaces which uses the
PCF8584 I2C controller chip.
With Visual Basic a test utility
has been developed to test the I2C LPT interface. The program test the I2C devices SAA1064, PCF8574,
Start / Stop
button added in the PCF8574 frame. You can start / stop the walking light.
Several routines are optimized and improved.
Sometime during launch of the application under Windows NT/2000/XP the
ended up in a startup loop.
detection under Windows NT/2000/XP of the PortTalk driver went wrong.
thought that there was already an I2CLPT.exe running on the system.
Added a Reset button in the LPT frame. This button gives a LPT and I2C bus
reset. Can be handy
when during startup the LPT port or I2C bus reports that
the hardware is not present.
In this release the I/O Port Driver PortTalk v2.2 of Beyondlogic has been
integrated. It is now possible to
test your I2C Parallel Port interface under
Windows NT, 2000 or XP. Do you want to know
Initial release of
I2C Parallel Port Test Utility